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What's new in Sudo 1.9.16p2
* Sudo now passes the terminal device number to the policy plugin
even if it cannot resolve it to a path name. This allows sudo
to run without warnings in a chroot jail when the terminal device
files are not present. GitHub issue #421.
* On Linux systems, sudo will now attempt to use the symbolic links
in /proc/self/fd/{0,1,2} when resolving the terminal device
number. This can allow sudo to map a terminal device to its
path name even when /dev/pts is not mounted in a chroot jail.
* Fixed compilation errors with gcc and clang in C23 mode.
C23 no longer supports functions with unspecified arguments.
What's new in Sudo 1.9.16p1
* Fixed the test for cross-compiling when checking for C99 snprintf().
The changes made to the test in sudo 1.9.16 resulted in a different
problem. GitHub issue #386.
* Fixed the date used by the exit record in sudo-format log files.
This was a regression introduced in sudo 1.9.16 and only affected
file-based logs, not syslog. GitHub issue #405.
* Fixed the root cause of the "unable to find terminal name for
device" message when running sudo on AIX when no terminal is
present. In sudo 1.9.16 this was turned from a debug message
into a warning. GitHub issue #408
* When a duplicate alias is found in the sudoers file, the warning
message now includes the file and line number of the previous
definition.
* Added support for the --with-secure-path-value=no configure
option to allow packagers to ship the default sudoers file with
the secure path line commented out.
* Sudo no longer sends mail when a user runs "sudo -nv" or "sudo -nl",
even if "mail_badpass" or "mail_always" are set. Sudo already
avoids logging to a file or syslog in this case. Bug #1072.
What's new in Sudo 1.9.16
* Added the "cmddenial_message" sudoers option to provide additional
information to the user when a command is denied by the sudoers
policy. The default message is still displayed.
* The time stamp used for file-based logs is now more consistent
with the time stamp produced by syslog. GitHub issues #327.
* Sudo will now warn the user if it can detect the user's terminal
but cannot determine the path to the terminal device. The sudoers
time stamp file will now use the terminal device number directly.
GitHub issue #329.
* The embedded copy of zlib has been updated to version 1.3.1.
* Improved error handling if generating the list of signals and signal
names fails at build time.
* Fixed a compilation issue on Linux systems without process_vm_readv().
* Fixed cross-compilation with WolfSSL.
* Added a "json_compact" value for the sudoers "log_format" option
which can be used when logging to a file. The existing "json"
value has been aliased to "json_pretty". In a future release,
"json" will be an alias for "json_compact". GitHub issue #357.
* A new "pam_silent" sudoers option has been added which may be
negated to avoid suppressing output from PAM authentication modules.
GitHub issue #216.
* Fixed several cvtsudoers JSON output problems.
GitHub issues #369, #370, #371, #373, #381.
* When sudo runs a command in a pseudo-terminal and the user's
terminal is revoked, the pseudo-terminal's foreground process
group will now receive SIGHUP before the terminal is revoked.
This emulates the behavior of the session leader exiting and is
consistent with what happens when, for example, an ssh session
is closed. GitHub issue #367.
* Fixed "make test" with Python 3.12. GitHub issue #374.
* In schema.ActiveDirectory, fixed the quoting in the example command.
GitHub issue #376.
* Paths specified via a Chdir_Spec or Chroot_Spec in sudoers may
now be double-quoted.
* Sudo insults are now included by default, but disabled unless
the --with-insults configure option is specified or the "insults"
sudoers option is enabled.
* The default sudoers file now enables the "secure_path" option by
default and preserves the EDITOR, VISUAL, and SUDO_EDITOR environment
variables when running visudo. The new --with-secure-path-value
configure option can be used to set the value of "secure_path" in
the default sudoers file. GitHub issue #387.
* A sudoers schema for IBM Directory Server (aka IBM Tivoli Directory
Server, IBM Security Directory Server, and IBM Security Verify
Directory) is now included.
* When cross-compiling sudo, the configure script now assumes that
the snprintf() function is C99-compliant if the C compiler
supports the C99 standard. Previously, configure would use
sudo's own snprintf() when cross-compiling. GitHub issue #386.
What's new in Sudo 1.9.15p5
* Fixed evaluation of the "lecture", "listpw", "verifypw", and
"fdexec" sudoers Defaults settings when used without an explicit
value. Previously, if specified without a value they were
evaluated as boolean "false", even when the negation operator
('!') was not present.
* Fixed a bug introduced in sudo 1.9.14 that prevented LDAP
netgroup queries using the NETGROUP_BASE setting from being
performed.
* Sudo will now transparently rename a user's lecture file from
the older name-based path to the newer user-ID-based path.
GitHub issue #342.
* Fixed a bug introduced in sudo 1.9.15 that could cause a memory
allocation failure if sysconf(_SC_LOGIN_NAME_MAX) fails. Bug #1066.
What's new in Sudo 1.9.15p4
* Fixed a bug introduced in sudo 1.9.15 that could prevent a user's
privileges from being listed by "sudo -l" if the sudoers entry
in /etc/nsswitch.conf contains "[SUCCESS=return]". This did not
affect the ability to run commands via sudo. Bug #1063.
What's new in Sudo 1.9.15p3
* Always disable core dumps when sudo sends itself a fatal signal.
Fixes a problem where sudo could potentially dump core dump when
it re-sends the fatal signal to itself. This is only an issue
if the command received a signal that would normally result in
a core dump but the command did not actually dump core.
* Fixed a bug matching a command with a relative path name when
the sudoers rule uses shell globbing rules for the path name.
Bug #1062.
* Permit visudo to be run even if the local host name is not set.
GitHub issue #332.
* Fixed an editing error introduced in sudo 1.9.15 that could
prevent sudoreplay from replaying sessions correctly.
GitHub issue #334.
* Fixed a bug introduced in sudo 1.9.15 where "sudo -l > /dev/null"
could hang on Linux systems. GitHub issue #335.
* Fixed a bug introduced in sudo 1.9.15 where Solaris privileges
specified in sudoers were not applied to the command being run.
What's new in Sudo 1.9.15p2
* Fixed a bug on BSD systems where sudo would not restore the
terminal settings on exit if the terminal had parity enabled.
GitHub issue #326.
What's new in Sudo 1.9.15p1
* Fixed a bug introduced in sudo 1.9.15 that prevented LDAP-based
sudoers from being able to read the ldap.conf file.
GitHub issue #325.
What's new in Sudo 1.9.15
* Fixed an undefined symbol problem on older versions of macOS
when "intercept" or "log_subcmds" are enabled in sudoers.
GitHub issue #276.
* Fixed "make check" failure related to getpwent(3) wrapping
on NetBSD.
* Fixed the warning message for "sudo -l command" when the command
is not permitted. There was a missing space between "list" and
the actual command due to changes in sudo 1.9.14.
* Fixed a bug where output could go to the wrong terminal if
"use_pty" is enabled (the default) and the standard input, output
or error is redirected to a different terminal. Bug #1056.
* The visudo utility will no longer create an empty file when the
specified sudoers file does not exist and the user exits the
editor without making any changes. GitHub issue #294.
* The AIX and Solaris sudo packages on www.sudo.ws now support
"log_subcmds" and "intercept" with both 32-bit and 64-bit
binaries. Previously, they only worked when running binaries
with the same word size as the sudo binary. GitHub issue #289.
* The sudoers source is now logged in the JSON event log. This
makes it possible to tell which rule resulted in a match.
* Running "sudo -ll command" now produces verbose output that
includes matching rule as well as the path to the sudoers file
the matching rule came from. For LDAP sudoers, the name of the
matching sudoRole is printed instead.
* The embedded copy of zlib has been updated to version 1.3.
* The sudoers plugin has been modified to make it more resilient
to ROWHAMMER attacks on authentication and policy matching.
This addresses CVE-2023-42465.
* The sudoers plugin now constructs the user time stamp file path
name using the user-ID instead of the user name. This avoids a
potential problem with user names that contain a path separator
('/') being interpreted as part of the path name. A similar
issue in sudo-rs has been assigned CVE-2023-42456.
* A path separator ('/') in a user, group or host name is now
replaced with an underbar character ('_') when expanding escapes
in @include and @includedir directives as well as the "iolog_file"
and "iolog_dir" sudoers Default settings.
* The "intercept_verify" sudoers option is now only applied when
the "intercept" option is set in sudoers. Previously, it was
also applied when "log_subcmds" was enabled. Sudo 1.9.14
contained an incorrect fix for this. Bug #1058.
* Changes to terminal settings are now performed atomically, where
possible. If the command is being run in a pseudo-terminal and
the user's terminal is already in raw mode, sudo will not change
the user's terminal settings. This prevents concurrent sudo
processes from restoring the terminal settings to the wrong values.
GitHub issue #312.
* Reverted a change from sudo 1.9.4 that resulted in PAM session
modules being called with the environment of the command to be
run instead of the environment of the invoking user.
GitHub issue #318.
* New Indonesian translation from translationproject.org.
* The sudo_logsrvd server will now raise its open file descriptor
limit to the maximum allowed value when it starts up. Each
connection can require up to nine open file descriptors so the
default soft limit may be too low.
* Better log message when rejecting a command if the "intercept"
option is enabled and the "intercept_allow_setid" option is
disabled. Previously, "command not allowed" would be logged and
the user had no way of knowing what the actual problem was.
* Sudo will now log the invoking user's environment as "submitenv"
in the JSON logs. The command's environment ("runenv") is no
longer logged for commands rejected by the sudoers file or an
approval plugin.
What's new in Sudo 1.9.14p3
* Fixed a crash with Python 3.12 when the sudo Python plugin is
unloaded. This only affects "make check" for the Python plugin.
* Adapted the sudo Python plugin test output to match Python 3.12.
What's new in Sudo 1.9.14p2
* Fixed a crash on Linux systems introduced in version 1.9.14 when
running a command with a NULL argv[0] if "log_subcmds" or
"intercept" is enabled in sudoers.
* Fixed a problem with "stair-stepped" output when piping or
redirecting the output of a sudo command that takes user input.
* Fixed a bug introduced in sudo 1.9.14 that affects matching
sudoers rules containing a Runas_Spec with an empty Runas user.
These rules should only match when sudo's -g option is used but
were matching even without the -g option. GitHub issue #290.
What's new in Sudo 1.9.14p1
* Fixed an invalid free bug in sudo_logsrvd that was introduced
in version 1.9.14 which could cause sudo_logsrvd to crash.
* The sudoers plugin no longer tries to send the terminal name
to the log server when no terminal is present. This bug was
introduced in version 1.9.14.
What's new in Sudo 1.9.14
* Fixed a bug where if the "intercept" or "log_subcmds" sudoers
option was enabled and a sub-command was run where the first
entry of the argument vector didn't match the command being run.
This resulted in commands like "sudo su -" being killed due to
the mismatch. Bug #1050.
* The sudoers plugin now canonicalizes command path names before
matching (where possible). This fixes a bug where sudo could
execute the wrong path if there are multiple symbolic links with
the same target and the same base name in sudoers that a user is
allowed to run. GitHub issue #228.
* Improved command matching when a chroot is specified in sudoers.
The sudoers plugin will now change the root directory id needed
before performing command matching. Previously, the root directory
was simply prepended to the path that was being processed.
* When NETGROUP_BASE is set in the ldap.conf file, sudo will now
perform its own netgroup lookups of the host name instead of
using the system innetgr(3) function. This guarantees that user
and host netgroup lookups are performed using the same LDAP
server (or servers).
* Fixed a bug introduced in sudo 1.9.13 that resulted in a missing
" ; " separator between environment variables and the command
in log entries.
* The visudo utility now displays a warning when it ignores a file
in an include dir such as /etc/sudoers.d.
* When running a command in a pseudo-terminal, sudo will initialize
the terminal settings even if it is the background process.
Previously, sudo only initialized the pseudo-terminal when running
in the foreground. This fixes an issue where a program that
checks the window size would read the wrong value when sudo was
running in the background.
* Fixed a bug where only the first two digits of the TSID field
being was logged. Bug #1046.
* The "use_pty" sudoers option is now enabled by default. To
restore the historic behavior where a command is run in the
user's terminal, add "Defaults !use_pty" to the sudoers file.
GitHub issue #258.
* Sudo's "-b" option now works when the command is run in a
pseudo-terminal.
* When disabling core dumps, sudo now only modifies the soft limit
and leaves the hard limit as-is. This avoids problems on Linux
when sudo does not have CAP_SYS_RESOURCE, which may be the case
when run inside a container. GitHub issue #42.
* Sudo configuration file paths have been converted to colon-separated
lists of paths. This makes it possible to have configuration
files on a read-only file system while still allowing for local
modifications in a different (writable) directory. The new
--enable-adminconf configure option can be used to specify a
directory that is searched for configuration files in preference
to the sysconfdir (which is usually /etc).
* The NETGROUP_QUERY ldap.conf parameter can now be disabled for
LDAP servers that do not support querying the nisNetgroup object
by its nisNetgroupTriple attribute, while still allowing sudo to
query the LDAP server directly to determine netgroup membership.
* Fixed a long-standing bug where a sudoers rule without an explicit
runas list allowed the user to run a command as root and any
group instead of just one of the groups that root is a member
of. For example, a rule such as "myuser ALL = ALL" would permit
"sudo -u root -g othergroup" even if root did not belong to
"othergroup".
* Fixed a bug where a sudoers rule with an explicit runas list
allowed a user to run sudo commands as themselves. For example,
a rule such as "myuser ALL = (root) ALL", "myuser" should only
allow commands to be run as root (optionally using one of root's
groups). However, the rule also allowed the user to run
"sudo -u myuser -g myuser command".
* Fixed a bug that prevented the user from specifying a group on
the command line via "sudo -g" if the rule's Runas_Spec contained
a Runas_Alias.
* Sudo now requires a C compiler that conforms to ISO C99 or higher
to build.
What's new in Sudo 1.9.13p3
* Fixed a bug introduced in sudo 1.9.13 that caused a syntax error
when "list" was used as a user or host name. GitHub issue #246.
* Fixed a bug that could cause sudo to hang when running a command
in a pseudo-terminal when there is still input buffered after a
command has exited.
* Fixed "sudo -U otheruser -l command". This is a regression in
sudo 1.9.13. GitHub issue #248.
* Fixed "sudo -l command args" when matching a command in sudoers
with command line arguments. This is a regression in sudo 1.9.13.
GitHub issue #249.
What's new in Sudo 1.9.13p2
* Fixed the --enable-static-sudoers option, broken in sudo 1.9.13.
GitHub issue #245.
* Fixed a potential double-free bug when matching a sudoers rule
that contains a per-command chroot directive (CHROOT=dir). This
bug was introduced in sudo 1.9.8.
What's new in Sudo 1.9.13p1
* Fixed a typo in the configure script that resulted in a line
like "]: command not found" in the output. GitHub issue #238.
* Corrected the order of the C23 [[noreturn]] attribute in function
prototypes. This fixes a build error with GCC 13. GitHub issue
#239.
* The "check" make target misbehaved when there was more than
one version of the UTF-8 C locale in the output of "locale -a".
GitHub issue #241.
* Removed a dependency on the AC_SYS_YEAR2038 macro in configure.ac.
This was added in autoconf 2.72 but sudo's configure.ac only
required autoconf 2.70.
* Relaxed the autoconf version requirement to version 2.69.
What's new in Sudo 1.9.13
* Fixed a bug running relative commands via sudo when "log_subcmds"
is enabled. GitHub issue #194.
* Fixed a signal handling bug when running sudo commands in a shell
script. Signals were not being forwarded to the command when
the sudo process was not run in its own process group.
* Fixed a bug in cvtsudoers' LDIF parsing when the file ends without
a newline and a backslash is the last character of the file.
* Fixed a potential use-after-free bug with cvtsudoers filtering.
GitHub issue #198.
* Added a reminder to the default lecture that the password will
not echo. This line is only displayed when the pwfeedback option
is disabled. GitHub issue #195.
* Fixed potential memory leaks in error paths. GitHub issues #199,
#202.
* Fixed potential NULL dereferences on memory allocation failure.
GitHub issues #204, #211.
* Sudo now uses C23-style attributes in function prototypes instead
of gcc-style attributes if supported.
* Added a new "list" pseudo-command in sudoers to allow a user to
list another user's privileges. Previously, only root or a user
with the ability to run any command as either root or the target
user on the current host could use the -U option. This also
includes a fix to the log entry when a user lacks permission to
run "sudo -U otheruser -l command". Previously, the logs would
indicate that the user tried to run the actual command, now the
log entry includes the list operation.
* JSON logging now escapes control characters if they happen to
appear in the command or environment.
* New Albanian translation from translationproject.org.
* Regular expressions in sudoers or logsrvd.conf may no longer
contain consecutive repetition operators. This is implementation-
specific behavior according to POSIX, but some implementations
will allocate excessive amounts of memory. This mainly affects
the fuzzers.
* Sudo now builds AIX-style shared libraries and dynamic shared
objects by default instead of svr4-style. This means that the
default sudo plugins are now .a (archive) files that contain a
.so shared object file instead of bare .so files. This was done
to improve compatibility with the AIX Freeware ecosystem,
specifically, the AIX Freeware build of OpenSSL. Sudo will still
load svr4-style .so plugins and if a .so file is requested,
either via sudo.conf or the sudoers file, and only the .a file
is present, sudo will convert the path from plugin.so to
plugin.a(plugin.so) when loading it. This ensures compatibility
with existing configurations. To restore the old, pre-1.9.13
behavior, run configure using the --with-aix-soname=svr4 option.
* Sudo no longer checks the ownership and mode of the plugins that
it loads. Plugins are configured via either the sudo.conf or
sudoers file which are trusted configuration files. These checks
suffered from time-of-check versus time-of-use race conditions and
complicate loading plugins that are not simple paths. Ownership
and mode checks are still performed when loading the sudo.conf
and sudoers files, which do not suffer from race conditions.
The sudo.conf "developer_mode" setting is no longer used.
* Control characters in sudo log messages and "sudoreplay -l"
output are now escaped in octal format. Space characters in the
command path are also escaped. Command line arguments that
contain spaces are surrounded by single quotes and any literal
single quote or backslash characters are escaped with a backslash.
This makes it possible to distinguish multiple command line
arguments from a single argument that contains spaces.
* Improved support for DragonFly BSD which uses a different struct
procinfo than either FreeBSD or 4.4BSD.
* Fixed a compilation error on Linux arm systems running older
kernels that may not define EM_ARM in linux/elf-em.h.
GitHub issue #232.
* Fixed a compilation error when LDFLAGS contains -Wl,--no-undefined.
Sudo will now link using -Wl,--no-undefined by default if possible.
GitHub issue #234.
* Fixed a bug executing a command with a very long argument vector
when "log_subcmds" or "intercept" is enabled on a system where
"intercept_type" is set to "trace". GitHub issue #194.
* When sudo is configured to run a command in a pseudo-terminal
but the standard input is not connected to a terminal, the command
will now be run as a background process. This works around a
problem running sudo commands in the background from a shell
script where changing the terminal to raw mode could interfere
with the interactive shell that ran the script.
GitHub issue #237.
* A missing include file in sudoers is no longer a fatal error
unless the error_recovery plugin argument has been set to false.
What's new in Sudo 1.9.12p2
* Fixed a compilation error on Linux/aarch64. GitHub issue #197.
* Fixed a potential crash introduced in the fix for GitHub issue #134.
If a user's sudoers entry did not have any RunAs user's set,
running "sudo -U otheruser -l" would dereference a NULL pointer.
* Fixed a bug introduced in sudo 1.9.12 that could prevent sudo
from creating a I/O files when the "iolog_file" sudoers setting
contains six or more Xs.
* Fixed a compilation issue on AIX with the native compiler.
GitHub issue #231.
* Fixed CVE-2023-22809, a flaw in sudo's -e option (aka sudoedit)
that could allow a malicious user with sudoedit privileges to
edit arbitrary files.
What's new in Sudo 1.9.12p1
* Sudo's configure script now does a better job of detecting when
the -fstack-clash-protection compiler option does not work.
GitHub issue #191.
* Fixed CVE-2022-43995, a potential out-of-bounds write for passwords
smaller than 8 characters when passwd authentication is enabled.
This does not affect configurations that use other authentication
methods such as PAM, AIX authentication or BSD authentication.
* Fixed a build error with some configurations compiling host_port.c.
What's new in Sudo 1.9.12
* Fixed a bug in the ptrace-based intercept mode where the current
working directory could include garbage at the end.
* Fixed a compilation error on systems that lack the stdint.h
header. Bug #1035
* Fixed a bug when logging the command's exit status in intercept
mode. The wrong command could be logged with the exit status.
* For ptrace-based intercept mode, sudo will now attempt to
verify that the command path name, arguments and environment
have not changed from the time when they were authorized by the
security policy. The new "intercept_verify" sudoers setting can
be used to control this behavior.
* Fixed running commands with a relative path (e.g., ./foo) in
intercept mode. Previously, this would fail if sudo's current
working directory was different from that of the command.
* Sudo now supports passing the execve(2) system call the NULL
pointer for the `argv` and/or `envp` arguments when in intercept
mode. Linux treats a NULL pointer like an empty array.
* The sudoers LDAP schema now allows sudoUser, sudoRunasUser and
sudoRunasGroup to include UTF-8 characters, not just 7-bit ASCII.
* Fixed a problem with "sudo -i" on SELinux when the target user's
home directory is not searchable by sudo. GitHub issue #160.
* Neovim has been added to the list of visudo editors that support
passing the line number on the command line.
* Fixed a bug in sudo's SHA384 and SHA512 message digest padding.
* Added a new "-N" (--no-update) command line option to sudo which
can be used to prevent sudo from updating the user's cached
credentials. It is now possible to determine whether or not a
user's cached credentials are currently valid by running:
$ sudo -Nnv
and checking the exit value. One use case for this is to indicate
in a shell prompt that sudo is "active" for the user.
* PAM approval modules are no longer invoked when running sub-commands
in intercept mode unless the "intercept_authenticate" option is set.
There is a substantial performance penalty for calling into PAM
for each command run. PAM approval modules are still called for
the initial command.
* Intercept mode on Linux now uses process_vm_readv(2) and
process_vm_writev(2) if available.
* The XDG_CURRENT_DESKTOP environment variable is now preserved
by default. This makes it possible for graphical applications
to choose the correct theme when run via sudo.
* On 64-bit systems, if sudo fails to load a sudoers group plugin,
it will use system-specific heuristics to try to locate a 64-bit
version of the plugin.
* The cvtsudoers manual now documents the JSON and CSV output
formats. GitHub issue #172.
* Fixed a bug where sub-commands were not being logged to a remote
log server when log_subcmds was enabled. GitHub issue #174.
* The new log_stdin, log_stdout, log_stderr, log_ttyin, and log_ttyout
sudoers settings can be used to support more fine-grained I/O logging.
The sudo front-end no longer allocates a pseudo-terminal when running
a command if the I/O logging plugin requests logging of stdin, stdout,
or stderr but not terminal input/output.
* Quieted a libgcrypt run-time initialization warning.
This fixes Debian bug #1019428 and Ubuntu bug #1397663.
* Fixed a bug in visudo that caused literal backslashes to be removed
from the EDITOR environment variable. GitHub issue #179.
* The sudo Python plugin now implements the "find_spec" method instead
of the deprecated "find_module". This fixes a test failure when
a newer version of setuptools that doesn't include "find_module" is
found on the system.
* Fixed a bug introduced in sudo 1.9.9 where sudo_logsrvd created
the process ID file, usually /var/run/sudo/sudo_logsrvd.pid, as
a directory instead of a plain file. The same bug could result
in I/O log directories that end in six or more X's being created
literally in addition to the name being used as a template for
the mkdtemp(3) function.
* Fixed a long-standing bug where a sudoers rule with a command
line argument of "", which indicates the command may be run with
no arguments, would also match a literal "" on the command line.
GitHub issue #182.
* Added the -I option to visudo which only edits the main sudoers
file. Include files are not edited unless a syntax error is found.
* Fixed "sudo -l -U otheruser" output when the runas list is empty.
Previously, sudo would list the invoking user instead of the
list user. GitHub issue #183.
* Fixed the display of command tags and options in "sudo -l" output
when the RunAs user or group changes. A new line is started for
RunAs changes which means we need to display the command tags
and options again. GitHub issue #184.
* The sesh helper program now uses getopt_long(3) to parse the
command line options.
* The embedded copy of zlib has been updated to version 1.2.13.
* Fixed a bug that prevented event log data from being sent to the
log server when I/O logging was not enabled. This only affected
systems without PAM or configurations where the pam_session and
pam_setcred options were disabled in the sudoers file.
* Fixed a bug where "sudo -l" output included a carriage return
after the newline. This is only needed when displaying to a
terminal in raw mode. Bug #1042.
What's new in Sudo 1.9.11p3
* Fixed "connection reset" errors on AIX when running shell scripts
with the "intercept" or "log_subcmds" sudoers options enabled.
Bug #1034.
* Fixed very slow execution of shell scripts when the "intercept"
or "log_subcmds" sudoers options are set on systems that enable
Nagle's algorithm on the loopback device, such as AIX.
Bug #1034.
What's new in Sudo 1.9.11p2
* Fixed a compilation error on Linux/x86_64 with the x32 ABI.
* Fixed a regression introduced in 1.9.11p1 that caused a warning
when logging to sudo_logsrvd if the command returned no output.
What's new in Sudo 1.9.11p1
* Correctly handle EAGAIN in the I/O read/right events. This fixes
a hang seen on some systems when piping a large amount of data
through sudo, such as via rsync. Bug #963.
* Changes to avoid implementation or unspecified behavior when
bit shifting signed values in the protobuf library.
* Fixed a compilation error on Linux/aarch64.
* Fixed the configure check for seccomp(2) support on Linux.
* Corrected the EBNF specification for tags in the sudoers manual
page. GitHub issue #153.
What's new in Sudo 1.9.11
* Fixed a crash in the Python module with Python 3.9.10 on some
systems. Additionally, "make check" now passes for Python 3.9.10.
* Error messages sent via email now include more details, including
the file name and the line number and column of the error.
Multiple errors are sent in a single message. Previously, only
the first error was included.
* Fixed logging of parse errors in JSON format. Previously,
the JSON logger would not write entries unless the command and
runuser were set. These may not be known at the time a parse
error is encountered.
* Fixed a potential crash parsing sudoers lines larger than twice
the value of LINE_MAX on systems that lack the getdelim() function.
* The tests run by "make check" now unset the LANGUAGE environment
variable. Otherwise, localization strings will not match if
LANGUAGE is set to a non-English locale. Bug #1025.
* The "starttime" test now passed when run under Debian faketime.
Bug #1026.
* The Kerberos authentication module now honors the custom password
prompt if one has been specified.
* The embedded copy of zlib has been updated to version 1.2.12.
* Updated the version of libtool used by sudo to version 2.4.7.
* Sudo now defines _TIME_BITS to 64 on systems that define __TIMESIZE
in the header files (currently only GNU libc). This is required
to allow the use of 64-bit time values on some 32-bit systems.
* Sudo's "intercept" and "log_subcmds" options no longer force the
command to run in its own pseudo-terminal. It is now also
possible to intercept the system(3) function.
* Fixed a bug in sudo_logsrvd when run in store-first relay mode
where the commit point messages sent by the server were incorrect
if the command was suspended or received a window size change
event.
* Fixed a potential crash in sudo_logsrvd when the "tls_dhparams"
configuration setting was used.
* The "intercept" and "log_subcmds" functionality can now use
ptrace(2) on Linux systems that support seccomp(2) filtering.
This has the advantage of working for both static and dynamic
binaries and can work with sudo's SELinux RBAC mode. The following
architectures are currently supported: i386, x86_64, aarch64,
arm, mips (log_subcmds only), powerpc, riscv, and s390x. The
default is to use ptrace(2) where possible; the new "intercept_type"
sudoers setting can be used to explicitly set the type.
* New Georgian translation from translationproject.org.
* Fixed creating packages on CentOS Stream.
* Fixed a bug in the intercept and log_subcmds support where
the execve(2) wrapper was using the current environment instead
of the passed environment pointer. Bug #1030.
* Added AppArmor integration for Linux. A sudoers rule can now
specify an APPARMOR_PROFILE option to run a command confined by
the named AppArmor profile.
* Fixed parsing of the "server_log" setting in sudo_logsrvd.conf.
Non-paths were being treated as paths and an actual path was
treated as an error.
What's new in Sudo 1.9.10
* Added new "log_passwords" and "passprompt_regex" sudoers options.
If "log_passwords" is disabled, sudo will attempt to prevent passwords
from being logged. If sudo detects any of the regular expressions in
the "passprompt_regex" list in the terminal output, sudo will log '*'
characters instead of the terminal input until a newline or carriage
return is found in the input or an output character is received.
* Added new "log_passwords" and "passprompt_regex" settings to
sudo_logsrvd that operate like the sudoers options when logging
terminal input.
* Fixed several few bugs in the cvtsudoers utility when merging
multiple sudoers sources.
* Fixed a bug in sudo_logsrvd when parsing the sudo_logsrvd.conf
file, where the "retry_interval" in the [relay] section was not
being recognized.
* Restored the pre-1.9.9 behavior of not performing authentication
when sudo's -n option is specified. A new "noninteractive_auth"
sudoers option has been added to enable PAM authentication in
non-interactive mode. GitHub issue #131.
* On systems with /proc, if the /proc/self/stat (Linux) or
/proc/pid/psinfo (other systems) file is missing or invalid,
sudo will now check file descriptors 0-2 to determine the user's
terminal. Bug #1020.
* Fixed a compilation problem on Debian kFreeBSD. Bug #1021.
* Fixed a crash in sudo_logsrvd when running in relay mode if
an alert message is received.
* Fixed an issue that resulting in "problem with defaults entries"
email to be sent if a user ran sudo when the sudoers entry in
the nsswitch.conf file includes "sss" but no sudo provider is
configured in /etc/sssd/sssd.conf. Bug #1022.
* Updated the warning displayed when the invoking user is not
allowed to run sudo. If sudo has been configured to send mail
on failed attempts (see the mail_* flags in sudoers), it will
now print "This incident has been reported to the administrator."
If the "mailto" or "mailerpath" sudoers settings are disabled,
the message will not be printed and no mail will be sent.
GitHub issue #48.
* Fixed a bug where the user-specified command timeout was not
being honored if the sudoers rule did not also specify a timeout.
* Added support for using POSIX extended regular expressions in
sudoers rules. A command and/or arguments in sudoers are treated
as a regular expression if they start with a '^' character and
end with a '$'. The command and arguments are matched separately,
either one (or both) may be a regular expression.
Bug #578, GitHub issue #15.
* A user may now only run "sudo -U otheruser -l" if they have a
"sudo ALL" privilege where the RunAs user contains either "root"
or "otheruser". Previously, having "sudo ALL" was sufficient,
regardless of the RunAs user. GitHub issue #134.
* The sudo lecture is now displayed immediately before the password
prompt. As a result, sudo will no longer display the lecture
unless the user needs to enter a password. Authentication methods
that don't interact with the user via a terminal do not trigger
the lecture.
* Sudo now uses its own closefrom() emulation on Linux systems.
The glibc version may not work in a chroot jail where /proc is
not available. If close_range(2) is present, it will be used
in preference to /proc/self/fd.
What's new in Sudo 1.9.9
* Sudo can now be built with OpenSSL 3.0 without generating warnings
about deprecated OpenSSL APIs.
* A digest can now be specified along with the "ALL" command in
the LDAP and SSSD back-ends. Sudo 1.9.0 introduced support for
this in the sudoers file but did not include corresponding changes
for the other back-ends.
* visudo now only warns about an undefined alias or a cycle in an
alias once for each alias.
* The sudoRole cn was truncated by a single character in warning messages.
GitHub issue #115.
* The cvtsudoers utility has new --group-file and --passwd-file options
to use a custom passwd or group file when the --match-local option is
also used.
* The cvtsudoers utility can now filter or match based on a command.
* The cvtsudoers utility can now produce output in csv (comma-separated
value) format. This can be used to help generate entitlement reports.
* Fixed a bug in sudo_logsrvd that could result in the connection being
dropped for very long command lines.
* Fixed a bug where sudo_logsrvd would not accept a restore point
of zero.
* Fixed a bug in visudo where the value of the "editor" setting was not
used if it did not match the user's EDITOR environment variable.
This was only a problem if the "env_editor" setting was not enabled.
Bug #1000.
* Sudo now builds with the -fcf-protection compiler option and the
"-z now" linker option if supported.
* The output of "sudoreplay -l" now more closely matches the
traditional sudo log format.
* The sudo_sendlog utility will now use the full contents of the log.json
file, if present. This makes it possible to send sudo-format I/O logs
that use the newer log.json format to sudo_logsrvd without losing any
information.
* Fixed compilation of the arc4random_buf() replacement on systems with
arc4random() but no arc4random_buf(). Bug #1008.
* Sudo now uses its own getentropy() by default on Linux. The GNU libc
version of getentropy() will fail on older kernels that don't support
the getrandom() system call.
* It is now possible to build sudo with WolfSSL's OpenSSL compatibility
layer by using the --enable-wolfssl configure option.
* Fixed a bug related to Daylight Saving Time when parsing timestamps
in Generalized Time format. This affected the NOTBEFORE and
NOTAFTER options in sudoers. Bug #1006
* Added the -O and -P options to visudo, which can be used to check
or set the owner and permissions. This can be used in conjunction
with the -c option to check that the sudoers file ownership and
permissions are correct. Bug #1007.
* It is now possible to set resource limits in the sudoers file itself.
The special values "default" and "user" refer to the default system
limit and invoking user limit respectively. The core dump size limit
is now set to 0 by default unless overridden by the sudoers file.
* The cvtsudoers utility can now merge multiple sudoers sources into
a single, combined sudoers file. If there are conflicting entries,
cvtsudoers will attempt to resolve them but manual intervention
may be required. The merging of sudoers rules is currently fairly
simplistic but will be improved in a future release.
* Sudo was parsing but not applying the "deref" and "tls_reqcert"
ldap.conf settings. This meant the options were effectively
ignored which broke dereferencing of aliases in LDAP. Bug #1013.
* Clarified in the sudo man page that the security policy may
override the user's PATH environment variable. Bug #1014.
* When sudo is run in non-interactive mode (with the -n option), it
will now attempt PAM authentication and only exit with an error
if user interaction is required. This allows PAM modules that
don't interact with the user to succeed. Previously, sudo
would not attempt authentication if the -n option was specified.
Bug #956 and GitHub issue #83.
* Fixed a regression introduced in version 1.9.1 when sudo is
built with the --with-fqdn configure option. The local host
name was being resolved before the sudoers file was processed,
making it impossible to disable DNS lookups by negating the
"fqdn" sudoers option. Bug #1016.
* Added support for negated sudoUser attributes in the LDAP and
SSSD sudoers back ends. A matching sudoUser that is negated
will cause the sudoRole containing it to be ignored.
* Fixed a bug where the stack resource limit could be set to a
value smaller than that of the invoking user and not be reset
before the command was run. Bug #1017.
What's new in Sudo 1.9.8p2
* Fixed a potential out-of-bounds read with "sudo -i" when the
target user's shell is bash. This is a regression introduced
in sudo 1.9.8. Bug #998.
* sudo_logsrvd now only sends a log ID for first command of a session.
There is no need to send the log ID for each sub-command.
* Fixed a few minor memory leaks in intercept mode.
* Fixed a problem with sudo_logsrvd in relay mode if "store_first"
was enabled when handling sub-commands. A new zero-length journal
file was created for each sub-command instead of simply using
the existing journal file.
* Fixed a bug where sudoedit would fail if one of the directories
in the path to be edited had the immutable flag set (BSD, Linux
or macOS). GitHub issue #122.
What's new in Sudo 1.9.8p1
* Fixed support for passing a prompt (sudo -p) or a login class
(sudo -c) on the command line. This is a regression introduced
in sudo 1.9.8. Bug #993.
* Fixed a crash with "sudo ALL" rules in the LDAP and SSSD back-ends.
This is a regression introduced in sudo 1.9.8. Bug #994.
* Fixed a compilation error when the --enable-static-sudoers configure
option was specified. This is a regression introduced in sudo
1.9.8 caused by a symbol clash with the intercept and log server
protobuf functions.
What's new in Sudo 1.9.8
* It is now possible to transparently intercepting sub-commands
executed by the original command run via sudo. Intercept support
is implemented using LD_PRELOAD (or the equivalent supported by
the system) and so has some limitations. The two main limitations
are that only dynamic executables are supported and only the
execl, execle, execlp, execv, execve, execvp, and execvpe library
functions are currently intercepted. Its main use case is to
support restricting privileged shells run via sudo.
To support this, there is a new "intercept" Defaults setting and
an INTERCEPT command tag that can be used in sudoers. For example:
Cmnd_Alias SHELLS=/bin/bash, /bin/sh, /bin/csh, /bin/ksh, /bin/zsh
Defaults!SHELLS intercept
would cause sudo to run the listed shells in intercept mode.
This can also be set on a per-rule basis. For example:
Cmnd_Alias SHELLS=/bin/bash, /bin/sh, /bin/csh, /bin/ksh, /bin/zsh
chuck ALL = INTERCEPT: SHELLS
would only apply intercept mode to user "chuck" when running one
of the listed shells.
In intercept mode, sudo will not prompt for a password before
running a sub-command and will not allow a set-user-ID or
set-group-ID program to be run by default. The new
intercept_authenticate and intercept_allow_setid sudoers settings
can be used to change this behavior.
* The new "log_subcmds" sudoers setting can be used to log additional
commands run in a privileged shell. It uses the same mechanism as
the intercept support described above and has the same limitations.
* The new "log_exit_status" sudoers setting can be used to log
the exit status commands run via sudo. This is also a corresponding
"log_exit" setting in the sudo_logsrvd.conf eventlog stanza.
* Support for logging sudo_logsrvd errors via syslog or to a file.
Previously, most sudo_logsrvd errors were only visible in the
debug log.
* Better diagnostics when there is a TLS certificate validation error.
* Using the "+=" or "-=" operators in a Defaults setting that takes
a string, not a list, now produces a warning from sudo and a
syntax error from inside visudo.
* Fixed a bug where the "iolog_mode" setting in sudoers and sudo_logsrvd
had no effect when creating I/O log parent directories if the I/O log
file name ended with the string "XXXXXX".
* Fixed a bug in the sudoers custom prompt code where the size
parameter that was passed to the strlcpy() function was incorrect.
No overflow was possible since the correct amount of memory was
already pre-allocated.
* The mksigname and mksiglist helper programs are now built with
the host compiler, not the target compiler, when cross-compiling.
Bug #989.
* Fixed compilation error when the --enable-static-sudoers configure
option was specified. This was due to a typo introduced in sudo
1.9.7. GitHub PR #113.
What's new in Sudo 1.9.7p2
* When formatting JSON output, octal numbers are now stored as
strings, not numbers. The JSON spec does not actually support
octal numbers with a '0' prefix.
* Fixed a compilation issue on Solaris 9.
* Sudo now can handle the getgroups() function returning a different
number of groups for subsequent invocations. GitHub PR #106.
* When loading a Python plugin, python_plugin.so now verifies
that the module loaded matches the one we tried to load. This
allows sudo to display a more useful error message when trying
to load a plugin with a name that conflicts with a Python module
installed in the system location.
* Sudo no longer sets the open files resource limit to "unlimited"
while it runs. This avoids a problem where sudo's closefrom()
emulation would need to close a very large number of descriptors
on systems without a way to determine which ones are actually open.
* Sudo now includes a configure check for va_copy or __va_copy and
only defines its own version if the configure test fails.
* Fixed a bug in sudo's utmp file handling which prevented old
entries from being reused. As a result, the utmp (or utmpx)
file was appended to unnecessarily. GitHub PR #108.
* Fixed a bug introduced in sudo 1.9.7 that prevented sudo_logsrvd
from accepting TLS connections when OpenSSL is used. Bug #988.
What's new in Sudo 1.9.7p1
* Fixed an SELinux sudoedit bug when the edited temporary file
could not be opened. The sesh helper would still be run even
when there are no temporary files available to install.
* Fixed a compilation problem on FreeBSD.
* The sudo_noexec.so file is now built as a module on all systems
other than macOS. This makes it possible to use other libtool
implementations such as slibtool. On macOS shared libraries and
modules are not interchangeable and the version of libtool shipped
with sudo must be used.
* Fixed a few bugs in the getgrouplist() emulation on Solaris when
reading from the local group file.
* Fixed a bug in sudo_logsrvd that prevented periodic relay server
connection retries from occurring in "store_first" mode.
* Disabled the nss_search()-based getgrouplist() emulation on HP-UX
due to a crash when the group source is set to "compat" in
/etc/nsswitch.conf. This is probably due to a mismatch between
include/compat/nss_dbdefs.h and what HP-UX uses internally. On
HP-UX we now just cycle through groups the slow way using
getgrent(). Bug #978.
What's new in Sudo 1.9.7
* The "fuzz" Makefile target now runs all the fuzzers for 8192
passes (can be overridden via the FUZZ_RUNS variable). This makes
it easier to run the fuzzers in-tree. To run a fuzzer indefinitely,
set FUZZ_RUNS=-1, e.g., "make FUZZ_RUNS=-1 fuzz".
* Fixed fuzzing on FreeBSD where the ld.lld linker returns an
error by default when a symbol is multiply-defined.
* Added support for determining local IPv6 addresses on systems
that lack the getifaddrs() function. This now works on AIX,
HP-UX and Solaris (at least). Bug #969.
* Fixed a bug introduced in sudo 1.9.6 that caused "sudo -V" to
report a usage error. Also, when invoked as sudoedit, sudo now
allows a more restricted set of options that matches the usage
statement and documentation. GitHub issue #95.
* Fixed a crash in sudo_sendlog when the specified certificate
or key does not exist or is invalid. Bug #970
* Fixed a compilation error when sudo is configured with the
--disable-log-client option.
* Sudo's limited support for SUCCESS=return entries in nsswitch.conf
is now documented. Bug #971.
* Sudo now requires autoconf 2.70 or higher to regenerate the
configure script. Bug #972.
* sudo_logsrvd now has a relay mode which can be used to create
a hierarchy of log servers. By default, when a relay server is
defined, messages from the client are forwarded immediately to
the relay. However, if the "store_first" setting is enabled,
the log will be stored locally until the command completes and
then relayed. Bug #965.
* Sudo now links with OpenSSL by default if it is available unless
the --disable-openssl configure option is used or both the
--disable-log-client and --disable-log-server configure options
are specified.
* Fixed configure's Python version detection when the version minor
number is more than a single digit, for example Python 3.10.
* The sudo Python module tests now pass for Python 3.10.
* Sudo will now avoid changing the datasize resource limit
as long as the existing value is at least 1GB. This works around
a problem on 64-bit HP-UX where it is not possible to exactly
restore the original datasize limit. Bug #973.
* Fixed a race condition that could result in a hang when sudo is
executed by a process where the SIGCHLD handler is set to SIG_IGN.
This fixes the bug described by GitHub PR #98.
* Fixed an out-of-bounds read in sudoedit and visudo when the
EDITOR, VISUAL or SUDO_EDITOR environment variables end in an
unescaped backslash. Also fixed the handling of quote characters
that are escaped by a backslash. GitHub issue #99.
* Fixed a bug that prevented the "log_server_verify" sudoers option
from taking effect.
* The sudo_sendlog utility has a new -s option to cause it to stop
sending I/O records after a user-specified elapsed time. This
can be used to test the I/O log restart functionality of sudo_logsrvd.
* Fixed a crash introduced in sudo 1.9.4 in sudo_logsrvd when
attempting to restart an interrupted I/O log transfer.
* The TLS connection timeout in the sudoers log client was previously
hard-coded to 10 seconds. It now uses the value of log_server_timeout.
* The configure script now outputs a summary of the user-configurable
options at the end, separate from output of configure script tests.
Bug #820.
* Corrected the description of which groups may be specified via the
-g option in the Runas_Spec section. Bug #975.
What's new in Sudo 1.9.6p1
* Fixed a regression introduced in sudo 1.9.6 that resulted in an
error message instead of a usage message when sudo is run with
no arguments.
What's new in Sudo 1.9.6
* Fixed a sudo_sendlog compilation problem with the AIX xlC compiler.
* Fixed a regression introduced in sudo 1.9.4 where the
--disable-root-mailer configure option had no effect.
* Added a --disable-leaks configure option that avoids some
memory leaks on exit that would otherwise occur. This is intended
to be used with development tools that measure memory leaks. It
is not safe to use in production at this time.
* Plugged some memory leaks identified by oss-fuzz and ASAN.
* Fixed the handling of sudoOptions for an LDAP sudoRole that
contains multiple sudoCommands. Previously, some of the options
would only be applied to the first sudoCommand.
* Fixed a potential out of bounds read in the parsing of NOTBEFORE
and NOTAFTER sudoers command options (and their LDAP equivalents).
* The parser used for reading I/O log JSON files is now more
resilient when processing invalid JSON.
* Fixed typos that prevented "make uninstall" from working.
GitHub issue #87.
* Fixed a regression introduced in sudo 1.9.4 where the last line
in a sudoers file might not have a terminating NUL character
added if no newline was present.
* Integrated oss-fuzz and LLVM's libFuzzer with sudo. The new
--enable-fuzzer configure option can be combined with the
--enable-sanitizer option to build sudo with fuzzing support.
Multiple fuzz targets are available for fuzzing different parts
of sudo. Fuzzers are built and tested via "make fuzz" or as part
of "make check" (even when sudo is not built with fuzzing support).
Fuzzing support currently requires the LLVM clang compiler (not gcc).
* Fixed the --enable-static-sudoers configure option.
GitHub issue #92.
* Fixed a potential out of bounds read sudo when is run by a user
with more groups than the value of "max_groups" in sudo.conf.
* Added an "admin_flag" sudoers option to make the use of the
~/.sudo_as_admin_successful file configurable on systems where
sudo is build with the --enable-admin-flag configure option.
This mostly affects Ubuntu and its derivatives. GitHub issue #56.
* The "max_groups" setting in sudo.conf is now limited to 1024.
This setting is obsolete and should no longer be needed.
* Fixed a bug in the tilde expansion of "CHROOT=dir" and "CWD=dir"
sudoers command options. A path "~/foo" was expanded to
"/home/userfoo" instead of "/home/user/foo". This also affects
the runchroot and runcwd Defaults settings.
* Fixed a bug on systems without a native getdelim(3) function
where very long lines could cause parsing of the sudoers file
to end prematurely. Bug #960.
* Fixed a potential integer overflow when converting the
timestamp_timeout and passwd_timeout sudoers settings to a
timespec struct.
* The default for the "group_source" setting in sudo.conf is now
"dynamic" on macOS. Recent versions of macOS do not reliably
return all of a user's non-local groups via getgroups(2), even
when _DARWIN_UNLIMITED_GETGROUPS is defined. Bug #946.
* Fixed a potential use-after-free in the PAM conversation function.
Bug #967.
* Fixed potential redefinition of sys/stat.h macros in sudo_compat.h.
Bug #968.
What's new in Sudo 1.9.5p2
* Fixed sudo's setprogname(3) emulation on systems that don't
provide it.
* Fixed a problem with the sudoers log server client where a partial
write to the server could result the sudo process consuming large
amounts of CPU time due to a cycle in the buffer queue. Bug #954.
* Added a missing dependency on libsudo_util in libsudo_eventlog.
Fixes a link error when building sudo statically.
* The user's KRB5CCNAME environment variable is now preserved when
performing PAM authentication. This fixes GSSAPI authentication
when the user has a non-default ccache.
* When invoked as sudoedit, the same set of command line options
are now accepted as for "sudo -e". The -H and -P options are
now rejected for sudoedit and "sudo -e" which matches the sudo
1.7 behavior. This is part of the fix for CVE-2021-3156.
* Fixed a potential buffer overflow when unescaping backslashes
in the command's arguments. Normally, sudo escapes special
characters when running a command via a shell (sudo -s or sudo
-i). However, it was also possible to run sudoedit with the -s
or -i flags in which case no escaping had actually been done,
making a buffer overflow possible. This fixes CVE-2021-3156.
What's new in Sudo 1.9.5p1
* Fixed a regression introduced in sudo 1.9.5 where the editor run
by sudoedit was set-user-ID root unless SELinux RBAC was in use.
The editor is now run with the user's real and effective user-IDs.
What's new in Sudo 1.9.5
* Fixed a crash introduced in 1.9.4 when running "sudo -i" as an
unknown user. This is related to but distinct from Bug #948.
* If the "lecture_file" setting is enabled in sudoers, it must now
refer to a regular file or a symbolic link to a regular file.
* Fixed a potential use-after-free bug in sudo_logsrvd when the
server shuts down if there are existing connections from clients
that are only logging events and not session I/O data.
* Fixed a buffer size mismatch when serializing the list of IP
addresses for configured network interfaces. This bug is not
actually exploitable since the allocated buffer is large enough
to hold the list of addresses.
* If sudo is executed with a name other than "sudo" or "sudoedit",
it will now fall back to "sudo" as the program name. This affects
warning, help and usage messages as well as the matching of Debug
lines in the /etc/sudo.conf file. Previously, it was possible
for the invoking user to manipulate the program name by setting
argv[0] to an arbitrary value when executing sudo.
* Sudo now checks for failure when setting the close-on-exec flag
on open file descriptors. This should never fail but, if it
were to, there is the possibility of a file descriptor leak to
a child process (such as the command sudo runs).
* Fixed CVE-2021-23239, a potential information leak in sudoedit
that could be used to test for the existence of directories not
normally accessible to the user in certain circumstances. When
creating a new file, sudoedit checks to make sure the parent
directory of the new file exists before running the editor.
However, a race condition exists if the invoking user can replace
(or create) the parent directory. If a symbolic link is created
in place of the parent directory, sudoedit will run the editor
as long as the target of the link exists. If the target of the
link does not exist, an error message will be displayed. The
race condition can be used to test for the existence of an
arbitrary directory. However, it _cannot_ be used to write to
an arbitrary location.
* Fixed CVE-2021-23240, a flaw in the temporary file handling of
sudoedit's SELinux RBAC support. On systems where SELinux is
enabled, a user with sudoedit permissions may be able to set the
owner of an arbitrary file to the user-ID of the target user.
On Linux kernels that support "protected symlinks", setting
/proc/sys/fs/protected_symlinks to 1 will prevent the bug from
being exploited. For more information see
https://www.sudo.ws/alerts/sudoedit_selinux.html.
* Added writability checks for sudoedit when SELinux RBAC is in use.
This makes sudoedit behavior consistent regardless of whether
or not SELinux RBAC is in use. Previously, the "sudoedit_checkdir"
setting had no effect for RBAC entries.
* A new sudoers option "selinux" can be used to disable sudo's
SELinux RBAC support.
* Quieted warnings from PVS Studio, clang analyzer, and cppcheck.
Added suppression annotations for PVS Studio false positives.
What's new in Sudo 1.9.4p2
* Fixed a bug introduced in sudo 1.9.4p1 which could lead to a crash
if the sudoers file contains a runas user-specific Defaults entry.
Bug #951.
What's new in Sudo 1.9.4p1
* Sudo on macOS now supports users with more than 16 groups without
needing to set "group_source" to "dynamic" in /etc/sudo.conf.
Previously, only the first 15 were used when matching group-based
rules in sudoers. Bug #946.
* Fixed a regression introduced in version 1.9.4 where sudo would
not build when configured using the --without-sendmail option.
Bug #947.
* Fixed a problem where if I/O logging was disabled and sudo was
unable to connect to sudo_logsrvd, the command would still be
allowed to run even when the "ignore_logfile_errors" sudoers
option was enabled.
* Fixed a crash introduced in version 1.9.4 when attempting to run
a command as a non-existent user. Bug #948.
* The installed sudo.conf file now has the default sudoers Plugin
lines commented out. This fixes a potential conflict when there
is both a system-installed version of sudo and a user-installed
version. GitHub issue #75.
* Fixed a regression introduced in sudo 1.9.4 where sudo would run
the command as a child process even when a pseudo-terminal was
not in use and the "pam_session" and "pam_setcred" options were
disabled. GitHub issue #76.
* Fixed a regression introduced in sudo 1.8.9 where the "closefrom"
sudoers option could not be set to a value of 3. Bug #950.
What's new in Sudo 1.9.4
* The sudoers parser will now detect when an upper-case reserved
word is used when declaring an alias. Now instead of "syntax
error, unexpected CHROOT, expecting ALIAS" the message will be
"syntax error, reserved word CHROOT used as an alias name".
Bug #941.
* Better handling of sudoers files without a final newline.
The parser now adds a newline at end-of-file automatically which
removes the need for special cases in the parser.
* Fixed a regression introduced in sudo 1.9.1 in the sssd back-end
where an uninitialized pointer could be freed on an error path.
GitHub issue #67.
* The core logging code is now shared between sudo_logsrvd and
the sudoers plugin.
* JSON log entries sent to syslog now use "minimal" JSON which
skips all non-essential white space.
* The sudoers plugin can now produce JSON-formatted logs. The
"log_format" sudoers option can be used to select sudo or json
format logs. The default is sudo format logs.
* The sudoers plugin and visudo now display the column number in
syntax error messages in addition to the line number. Bug #841.
* If I/O logging is not enabled but "log_servers" is set, the
sudoers plugin will now log accept events to sudo_logsrvd.
Previously, the accept event was only sent when I/O logging was
enabled. The sudoers plugin now sends reject and alert events too.
* The sudo logsrv protocol has been extended to allow an AlertMessage
to contain an optional array of InfoMessage, as AcceptMessage
and RejectMessage already do.
* Fixed a bug in sudo_logsrvd where receipt of SIGHUP would result
in duplicate entries in the debug log when debugging was enabled.
* The visudo utility now supports EDITOR environment variables
that use single or double quotes in the command arguments.
Bug #942.
* The PAM session modules now run when sudo is set-user-ID root,
which allows a module to determine the original user-ID.
Bug #944.
* Fixed a regression introduced in sudo 1.8.24 in the LDAP back-end
where sudoNotBefore and sudoNotAfter were applied even when the
SUDOERS_TIMED setting was not present in ldap.conf. Bug #945.
* Sudo packages for macOS 11 now contain universal binaries that
support both Intel and Apple Silicon CPUs.
* For sudo_logsrvd, an empty value for the "pid_file" setting in
sudo_logsrvd.conf will now disable the process ID file.
What's new in Sudo 1.9.3p1
* Fixed a regression introduced in sudo 1.9.3 where the configure
script would not detect the crypt(3) function if it was present
in the C library, not an additional library.
* Fixed a regression introduced in sudo 1.8.23 with shadow passwd
file authentication on OpenBSD. BSD authentication was not
affected.
* Sudo now logs when a user-specified command-line option is
rejected by a sudoers rule. Previously, these conditions were
written to the audit log, but the default sudo log file. Affected
command line arguments include -C (--close-from), -D (--chdir),
-R (--chroot), -g (--group) and -u (--user).
What's new in Sudo 1.9.3
* sudoedit will now prompt the user before overwriting an existing
file with one that is zero-length after editing. Bug #922.
* Fixed building the Python plugin on systems with a compiler that
doesn't support symbol hiding.
* Sudo now uses a linker script to hide symbols even when the
compiler supports symbol hiding. This should make it easier to
detect omissions in the symbol exports file, regardless of the
platform.
* Fixed the libssl dependency in Debian packages for older releases
that use libssl1.0.0.
* Sudo and visudo now provide more detailed messages when a syntax
error is detected in sudoers. The offending line and token are
now displayed. If the parser was generated by GNU bison,
additional information about what token was expected is also
displayed. Bug #841.
* Sudoers rules must now end in either a newline or the end-of-file.
Previously, it was possible to have multiple rules on a single
line, separated by white space. The use of an end-of-line
terminator makes it possible to display accurate error messages.
* Sudo no longer refuses to run if a syntax error in the sudoers
file is encountered. The entry with the syntax error will be
discarded and sudo will continue to parse the file. This makes
recovery from a syntax error less painful on systems where sudo
is the primary method of superuser access. The historic behavior
can be restored by add "error_recovery=false" to the sudoers
plugin's optional arguments in sudo.conf. Bug #618.
* Fixed the sample_approval plugin's symbol exports file for systems
where the compiler doesn't support symbol hiding.
* Fixed a regression introduced in sudo 1.9.1 where arguments to
the "sudoers_policy" plugin in sudo.conf were not being applied.
The sudoers file is now parsed by the "sudoers_audit" plugin,
which is loaded implicitly when "sudoers_policy" is listed in
sudo.conf. Starting with sudo 1.9.3, if there are plugin arguments
for "sudoers_policy" but "sudoers_audit" is not listed, those
arguments will be applied to "sudoers_audit" instead.
* The user's resource limits are now passed to sudo plugins in
the user_info[] list. A plugin cannot determine the limits
itself because sudo changes the limits while it runs to prevent
resource starvation.
* It is now possible to set the working directory or change the
root directory on a per-command basis using the CWD and CHROOT
options. CWD and CHROOT are now reserved words in sudoers--they
can no longer be used as alias names. There are also new Defaults
settings, runchroot and runcwd, that can be used to set the
working directory or root directory on a more global basis.
* New -D (--chdir) and -R (--chroot) command line options can be
used to set the working directory or root directory if the sudoers
file allows it. This functionality is not enabled by default
and must be explicitly enabled in the sudoers file.
* Fixed a regression introduced in sudo 1.9.1 where the sudoers_audit
symbol could not be resolved when sudo is configured with the
--enable-static-sudoers option. Bug #936 and GitHub issue #61.
What's new in Sudo 1.9.2
* Fixed package builds on RedHat Enterprise Linux 8.
* The configure script now uses pkg-config to find the openssl
cflags and libs where possible.
* The contents of the log.json I/O log file is now documented in
the sudoers manual.
* The sudoers plugin now properly exports the sudoers_audit symbol
on systems where the compiler lacks symbol visibility controls.
This caused a regression in 1.9.1 where a successful sudo command
was not logged due to the missing audit plugin. Bug #931.
* Fixed a regression introduced in 1.9.1 that can result in crash
when there is a syntax error in the sudoers file. Bug #934.
What's new in Sudo 1.9.1
* Fixed an AIX-specific problem when I/O logging was enabled.
The terminal device was not being properly set to raw mode.
Bug #927.
* Corrected handling of sudo_logsrvd connections without associated
I/O log data. This fixes support for RejectMessage as well as
AcceptMessage when the expect_iobufs flag is not set.
* Added an "iolog_path" entry to the JSON-format event log produced
by sudo_logsrvd. Previously, it was only possible to determine
the I/O log file an event belonged to using sudo-format logs.
* Fixed the bundle IDs for sudo-logsrvd and sudo-python macOS packages.
* I/O log files produced by the sudoers plugin now clear the write
bits on the I/O log timing file when the log is complete. This
is consistent with how sudo_logsrvd indicates that a log is
complete.
* The sudoreplay utility has a new "-F" (follow) command line
option to allow replaying a session that is still in progress,
similar to "tail -f".
* The @include and @includedir directives can be used in sudoers
instead of #include and #includedir. In addition, include paths
may now have embedded white space by either using a double-quoted
string or escaping the space characters with a backslash.
* Fixed some Solaris 11.4 compilation errors.
* When running a command in a pty, sudo will no longer try to
suspend itself if the user's tty has been revoked (for instance
when the parent ssh daemon is killed). This fixes a bug where
sudo would continuously suspend the command (which would succeed),
then suspend itself (which would fail due to the missing tty)
and then resume the command.
* If sudo's event loop fails due to the tty being revoked, remove
the user's tty events and restart the event loop (once). This
fixes a problem when running "sudo reboot" in a pty on some
systems. When the event loop exited unexpectedly, sudo would
kill the command running in the pty, which in the case of "reboot",
could lead to the system being in a half-rebooted state.
* Fixed a regression introduced in sudo 1.8.23 in the LDAP and
SSSD back-ends where a missing sudoHost attribute was treated
as an "ALL" wildcard value. A sudoRole with no sudoHost attribute
is now ignored as it was prior to version 1.8.23.
* The audit plugin API has been changed slightly. The sudo front-end
now audits an accept event itself after all approval plugins are
run and the I/O logging plugins (if any) are opened. This makes
it possible for an audit plugin to only log a single overall
accept event if desired.
* The sudoers plugin can now be loaded as an audit plugin. Logging
of successful commands is now performed in the audit plugin's
accept function. As a result, commands are now only logged if
allowed by sudoers and all approval plugins. Commands rejected
by an approval plugin are now also logged by the sudoers plugin.
* Romanian translation for sudo and sudoers from translationproject.org.
* Fixed a regression introduced in sudo 1.9.0 where sudoedit did
not remove its temporary files after installing them. Bug #929.
* Fixed a regression introduced in sudo 1.9.0 where the iolog_file
setting in sudoers and sudo_logsrvd.conf caused an error if the
file name ended in six or more X's.
What's new in Sudo 1.9.0
* Fixed a test failure in the strsig_test regress test on FreeBSD.
* The maximum length of a conversation reply has been increased
from 255 to 1023 characters. This allows for longer user passwords.
Bug #860.
* Sudo now includes a logging daemon, sudo_logsrvd, which can be
used to implement centralized logging of I/O logs. TLS connections
are supported when sudo is configured with the --enable-openssl
option. For more information, see the sudo_logsrvd, logsrvd.conf
and sudo_logsrv.proto manuals as well as the log_servers setting
in the sudoers manual.
The --disable-log-server and --disable-log-client configure
options can be used to disable building the I/O log server and/or
remote I/O log support in the sudoers plugin.
* The new sudo_sendlog utility can be used to test sudo_logsrvd
or send existing sudo I/O logs to a centralized server.
* It is now possible to write sudo plugins in Python 3 when sudo
is configured with the --enable-python option. See the
sudo_plugin_python manual for details.
Sudo 1.9.0 comes with several Python example plugins that get
installed sudo's examples directory.
The sudo blog article "What's new in sudo 1.9: Python"
(https://blog.sudo.ws/posts/2020/01/whats-new-in-sudo-1.9-python/)
includes a simple tutorial on writing python plugins.
* Sudo now supports an "audit" plugin type. An audit plugin
receives accept, reject, exit and error messages and can be used
to implement custom logging that is independent of the underlying
security policy. Multiple audit plugins may be specified in
the sudo.conf file. A sample audit plugin is included that
writes logs in JSON format.
* Sudo now supports an "approval" plugin type. An approval plugin
is run only after the main security policy (such as sudoers) accepts
a command to be run. The approval policy may perform additional
checks, potentially interacting with the user. Multiple approval
plugins may be specified in the sudo.conf file. Only if all
approval plugins succeed will the command be allowed.
* Sudo's -S command line option now causes the sudo conversation
function to write to the standard output or standard error instead
of the terminal device.
* Fixed a bug where if a #include or #includedir directive was the
last line in sudoers and there was no final newline character, it
was silently ignored. Bug #917.
* It is now possible to use "Cmd_Alias" instead of "Cmnd_Alias" for
people who find the former more natural.
* The new "pam_ruser" and "pam_rhost" sudoers settings can be used
to enable or disable setting the PAM remote user and/or host
values during PAM session setup.
* More than one SHA-2 digest may now be specified for a single
command. Multiple digests must be separated by a comma.
* It is now possible to specify a SHA-2 digest in conjunction with
the "ALL" reserved word in a command specification. This allows
one to give permission to run any command that matches the
specified digest, regardless of its path.
* Sudo and sudo_logsrvd now create an extended I/O log info file
in JSON format that contains additional information about the
command that was run, such as the host name. The sudoreplay
utility uses this file in preference to the legacy log file.
* The sudoreplay utility can now match on a host name in list mode.
The list output also now includes the host name if one is present
in the log file.
* For "sudo -i", if the target user's home directory does not
exist, sudo will now warn about the problem but run the command
in the current working directory. Previously, this was a fatal
error. Debian bug #598519.
* The command line arguments in the SUDO_COMMAND environment
variable are now truncated at 4096 characters. This avoids an
"Argument list too long" error when executing a command with a
large number of arguments. Bug #923 (Debian bug #596631).
* Sudo now properly ends the PAM transaction when the user
authenticates successfully but sudoers denies the command.
Debian bug #669687.
* The sudoers grammar in the manual now indicates that "sudoedit"
requires one or more arguments. Debian bug #571621.
* When copying the edited files to the original path, sudoedit now
allocates any additional space needed before writing. Previously,
it could truncate the destination file if the file system was
full. Bug #922.
* Fixed an issue where PAM session modules could be called with
the wrong user name when multiple users in the passwd database
share the same user-ID. Debian bug #734752.
* Sudo command line options that take a value may only be specified
once. This is to help guard against problems caused by poorly
written scripts that invoke sudo with user-controlled input.
Bug #924.
What's new in Sudo 1.8.31p1
* Sudo once again ignores a failure to restore the RLIMIT_CORE
resource limit, as it did prior to version 1.8.29. Linux
containers don't allow RLIMIT_CORE to be set back to RLIM_INFINITY
if we set the limit to zero, even for root, which resulted in a
warning from sudo.
What's new in Sudo 1.8.31
* Fixed CVE-2019-18634, a buffer overflow when the "pwfeedback"
sudoers option is enabled on systems with uni-directional pipes.
* The "sudoedit_checkdir" option now treats a user-owned directory
as writable, even if it does not have the write bit set at the
time of check. Symbolic links will no longer be followed by
sudoedit in any user-owned directory. Bug #912
* Fixed sudoedit on macOS 10.15 and above where the root file system
is mounted read-only. Bug #913.
* Fixed a crash introduced in sudo 1.8.30 when suspending sudo
at the password prompt. Bug #914.
* Fixed compilation on systems where the mmap MAP_ANON flag
is not available. Bug #915.
What's new in Sudo 1.8.30
* Fixed a warning on macOS introduced in sudo 1.8.29 when sudo
attempts to set the open file limit to unlimited. Bug #904.
* Sudo now closes file descriptors before changing uids. This
prevents a non-root process from interfering with sudo's ability
to close file descriptors on systems that support the prlimit(2)
system call.
* Sudo now treats an attempt to run "sudo sudoedit" as simply
"sudoedit". If the sudoers file contains a fully-qualified path
to sudoedit, sudo will now treat it simply as "sudoedit" (with
no path). Visudo will now treat a fully-qualified path
to sudoedit as an error. Bug #871.
* Fixed a bug introduced in sudo 1.8.28 where sudo would warn about
a missing /etc/environment file on AIX and Linux when PAM is not
enabled. Bug #907
* Fixed a bug on Linux introduced in sudo 1.8.29 that prevented
the askpass program from running due to an unlimited stack size
resource limit. Bug #908.
* If a group provider plugin has optional arguments, the argument list
passed to the plugin is now NULL terminated as per the documentation.
* The user's time stamp file is now only updated if both authentication
and approval phases succeed. This is consistent with the behavior
of sudo prior to version 1.8.23. Bug #910
* The new allow_unknown_runas_id sudoers setting can be used to
enable or disable the use of unknown user or group IDs. Previously,
sudo would always allow unknown user or group IDs if the sudoers
entry permitted it, including via the "ALL" alias. As of sudo
1.8.30, the admin must explicitly enable support for unknown IDs.
* The new runas_check_shell sudoers setting can be used to require
that the runas user have a shell listed in the /etc/shells file.
On many systems, users such as "bin", do not have a valid shell
and this flag can be used to prevent commands from being run as
those users.
* Fixed a problem restoring the SELinux tty context during reboot
if mctransd is killed before sudo finishes. GitHub issue #17.
* Fixed an intermittent warning on NetBSD when sudo restores the
initial stack size limit.
What's new in Sudo 1.8.29
* The cvtsudoers command will now reject non-LDIF input when converting
from LDIF format to sudoers or JSON formats.
* The new log_allowed and log_denied sudoers settings make it possible
to disable logging and auditing of allowed and/or denied commands.
* The umask is now handled differently on systems with PAM or login.conf.
If the umask is explicitly set in sudoers, that value is used regardless
of what PAM or login.conf may specify. However, if the umask is not
explicitly set in sudoers, PAM or login.conf may now override the default
sudoers umask. Bug #900.
* For "make install", the sudoers file is no longer checked for syntax
errors when DESTDIR is set. The default sudoers file includes the
contents of /etc/sudoers.d which may not be readable as non-root.
Bug #902.
* Sudo now sets most resource limits to their maximum value to avoid
problems caused by insufficient resources, such as an inability to
allocate memory or open files and pipes.
* Fixed a regression introduced in sudo 1.8.28 where sudo would refuse
to run if the parent process was not associated with a session.
This was due to sudo passing a session ID of -1 to the plugin.
What's new in Sudo 1.8.28p1
* The fix for Bug #869 caused "sudo -v" to prompt for a password
when "verifypw" is set to "all" (the default) and all of the
user's sudoers entries are marked with NOPASSWD. Bug #901.
What's new in Sudo 1.8.28
* Sudo will now only set PAM_TTY to the empty string when no
terminal is present on Solaris and Linux. This workaround is
only needed on those systems which may have PAM modules that
misbehave when PAM_TTY is not set.
* The mailerflags sudoers option now has a default value even if
sendmail support was disabled at configure time. Fixes a crash
when the mailerpath sudoers option is set but mailerflags is not.
Bug #878.
* Sudo will now filter out last login messages on HP-UX unless it
a shell is being run via "sudo -s" or "sudo -i". Otherwise,
when trusted mode is enabled, these messages will be displayed
for each command.
* On AIX, when the user's password has expired and PAM is not in use,
sudo will now allow the user to change their password.
Bug #883.
* Sudo has a new -B command line option that will ring the terminal
bell when prompting for a password.
* Sudo no longer refuses to prompt for a password when it cannot
determine the user's terminal as long as it can open /dev/tty.
This allows sudo to function on systems where /proc is unavailable,
such as when running in a chroot environment.
* The "env_editor" sudoers flag is now on by default. This makes
source builds more consistent with the packages generated by
sudo's mkpkg script.
* Sudo no longer ships with pre-formatted copies of the manual pages.
These were included for systems like IRIX that don't ship with an
nroff utility. There are now multiple Open Source nroff replacements
so this should no longer be an issue.
* Fixed a bad interaction with configure's --prefix and
--disable-shared options. Bug #886.
* More verbose error message when a password is required and no terminal
is present. Bug #828.
* Command tags, such as NOPASSWD, are honored when a user tries to run a
command that is allowed by sudoers but which does not actually
exist on the file system. Bug #888.
* Asturian translation for sudoers from translationproject.org.
* I/O log timing files now store signal suspend and resume information
in the form of a signal name instead of a number.
* Fixed a bug introduced in 1.8.24 that prevented sudo from honoring
the value of "ipa_hostname" from sssd.conf, if specified, when
matching the host name.
* Fixed a bug introduced in 1.8.21 that prevented the core dump
resource limit set in the pam_limits module from taking effect.
Bug #894.
* Fixed parsing of double-quoted Defaults group and netgroup bindings.
* The user ID is now used when matching sudoUser attributes in LDAP.
Previously, the user name, group name and group IDs were used
when matching but not the user ID.
* Sudo now writes PAM messages to the user's terminal, if available,
instead of the standard output or standard error. This prevents
PAM output from being intermixed with that of the command when
output is sent to a file or pipe. Bug #895.
* Sudoedit now honors the umask and umask_override settings in sudoers.
Previously, the user's umask was used as-is.
* Fixed a bug where the terminal's file context was not restored
when using SELinux RBAC. Bug #898.
* Fixed CVE-2019-14287, a bug where a sudo user may be able to
run a command as root when the Runas specification explicitly
disallows root access as long as the ALL keyword is listed first.
What's new in Sudo 1.8.27
* On HP-UX, sudo will now update the utmps file when running a command
in a pseudo-tty. Previously, only the utmp and utmpx files were
updated.
* Nanosecond precision file time stamps are now supported in HP-UX.
* Fixes and clarifications to the sudo plugin documentation.
* The sudo manuals no longer require extensive post-processing to
hide system-specific features. Conditionals in the roff source
are now used instead. This fixes corruption of the sudo manual
on systems without BSD login classes. Bug #861.
* If an I/O logging plugin is configured but the plugin does not
actually log any I/O, sudo will no longer force the command to
be run in a pseudo-tty.
* The fix for bug #843 in sudo 1.8.24 was incomplete. If the
user's password was expired or needed to be updated, but no sudo
password was required, the PAM handle was freed too early,
resulting in a failure when processing PAM session modules.
* In visudo, it is now possible to specify the path to sudoers
without using the -f option. Bug #864.
* Fixed a bug introduced in sudo 1.8.22 where the utmp (or utmpx)
file would not be updated when a command was run in a pseudo-tty.
Bug #865.
* Sudo now sets the silent flag when opening the PAM session except
when running a shell via "sudo -s" or "sudo -i". This prevents
the pam_lastlog module from printing the last login information
for each sudo command. Bug #867.
* Fixed the default AIX hard resource limit for the maximum number
of files a user may have open. If no hard limit for "nofiles"
is explicitly set in /etc/security/limits, the default should
be "unlimited". Previously, the default hard limit was 8196.
What's new in Sudo 1.8.26
* Fixed a bug in cvtsudoers when converting to JSON format when
alias expansion is enabled. Bug #853.
* Sudo no long sets the USERNAME environment variable when running
commands. This is a non-standard environment variable that was
set on some older Linux systems.
* Sudo now treats the LOGNAME and USER environment variables (as
well as the LOGIN variable on AIX) as a single unit. If one is
preserved or removed from the environment using env_keep, env_check
or env_delete, so is the other.
* Added support for OpenLDAP's TLS_REQCERT setting in ldap.conf.
* Sudo now logs when the command was suspended and resumed in the
I/O logs. This information is used by sudoreplay to skip the
time suspended when replaying the session unless the new -S flag
is used.
* Fixed documentation problems found by the igor utility. Bug #854.
* Sudo now prints a warning message when there is an error or end
of file while reading the password instead of exiting silently.
* Fixed a bug in the sudoers LDAP back-end parsing the command_timeout,
role, type, privs and limitprivs sudoOptions. This also affected
cvtsudoers conversion from LDIF to sudoers or JSON.
* Fixed a bug that prevented timeout settings in sudoers from
functioning unless a timeout was also specified on the command
line.
* Asturian translation for sudo from translationproject.org.
* When generating LDIF output, cvtsudoers can now be configured
to pad the sudoOrder increment such that the start order is used
as a prefix. Bug #856.
* Fixed a bug introduced in sudo 1.8.25 that prevented sudo from
properly setting the user's groups on AIX. Bug #857.
* If the user specifies a group via sudo's -g option that matches
any of the target user's groups, it is now allowed even if no
groups are present in the Runas_Spec. Previously, it was only
allowed if it matched the target user's primary group.
* The sudoers LDAP back-end now supports negated sudoRunAsUser and
sudoRunAsGroup entries.
* Sudo now provides a proper error message when the "fqdn" sudoers
option is set and it is unable to resolve the local host name.
Bug #859.
* Portuguese translation for sudo and sudoers from translationproject.org.
* Sudo now includes sudoers LDAP schema for the on-line configuration
supported by OpenLDAP.
What's new in Sudo 1.8.25p1
* Fixed a bug introduced in sudo 1.8.25 that caused a crash on
systems that have the poll() function but not the ppoll() function.
Bug #851.
What's new in Sudo 1.8.25
* Fixed a bug introduced in sudo 1.8.20 that broke formatting of
I/O log timing file entries on systems without a C99-compatible
snprintf() function. Our replacement snprintf() doesn't support
floating point so we can't use the "%f" format directive.
* I/O log timing file entries now use a monotonic timer and include
nanosecond precision. A monotonic timer that does not increment
while the system is sleeping is used where available.
* Fixed a bug introduced in sudo 1.8.24 where sudoNotAfter in the LDAP
back-end was not being properly parsed. Bug #845.
* When sudo runs a command in a pseudo-terminal, the follower
device is now closed in the main process immediately after
starting the monitor process. This removes the need for an
AIX-specific workaround that was added in sudo 1.8.24.
* Added support for monotonic timers on HP-UX.
* Fixed a bug displaying timeout values the "sudo -V" output.
The value displayed was 3600 times the actual value. Bug #846.
* Fixed a build issue on AIX 7.1 BOS levels that include memset_s()
and define rsize_t in string.h. Bug #847.
* The testsudoers utility now supports querying an LDIF-format
policy.
* Sudo now sets the LOGIN environment variable to the same value as
LOGNAME on AIX systems. Bug #848.
* Fixed a regression introduced in sudo 1.8.24 where the LDAP and
SSSD back-ends evaluated the rules in reverse sudoOrder. Bug #849.
What's new in Sudo 1.8.24
* The LDAP and SSS back-ends now use the same rule evaluation code
as the sudoers file back-end. This builds on the work in sudo
1.8.23 where the formatting functions for "sudo -l" output were
shared. The handling of negated commands in SSS and LDAP is
unchanged.
* Fixed a regression introduced in 1.8.23 where "sudo -i" could
not be used in conjunction with --preserve-env=VARIABLE. Bug #835.
* cvtsudoers can now parse base64-encoded attributes in LDIF files.
* Random insults are now more random.
* Fixed the noexec wordexp(3) test on FreeBSD.
* Added SUDO_CONV_PREFER_TTY flag for conversation function to
tell sudo to try writing to /dev/tty first. Can be used in
conjunction with SUDO_CONV_INFO_MSG and SUDO_CONV_ERROR_MSG.
* Sudo now supports an arbitrary number of groups per user on
Solaris. Previously, only the first 64 groups were found.
This should remove the need to set "max_groups" in sudo.conf.
* Fixed typos in the OpenLDAP sudo schema. Bugs #839 and #840.
* Fixed a race condition when building with parallel make.
Bug #842.
* Fixed a duplicate free when netgroup_base in ldap.conf is set
to an invalid value.
* Fixed a bug introduced in sudo 1.8.23 on AIX that could prevent
local users and groups from being resolved properly on systems
that have users stored in NIS, LDAP or AD.
* Added a workaround for an AIX bug exposed by a change in sudo
1.8.23 that prevents the terminal mode from being restored when
I/O logging is enabled.
* On systems using PAM, sudo now ignores the PAM_NEW_AUTHTOK_REQD
and PAM_AUTHTOK_EXPIRED errors from PAM account management if
authentication is disabled for the user. This fixes a regression
introduced in sudo 1.8.23. Bug #843.
* Fixed an ambiguity in the sudoers manual in the description and
definition of User, Runas, Host, and Cmnd Aliases. Bug #834.
* Fixed a bug that resulted in only the first window size change
event being logged.
* Fixed a bug on HP-UX systems introduced in sudo 1.8.22 that
caused sudo to prompt for a password every time when tty-based
time stamp files were in use.
* Fixed a compilation problem on systems that define O_PATH or
O_SEARCH in fnctl.h but do not define O_DIRECTORY. Bug #844.
What's new in Sudo 1.8.23
* PAM account management modules and BSD auth approval modules are
now run even when no password is required.
* For kernel-based time stamps, if no terminal is present, fall
back to parent-pid style time stamps.
* The new cvtsudoers utility replaces both the "sudoers2ldif" script
and the "visudo -x" functionality. It can read a file in either
sudoers or LDIF format and produce JSON, LDIF or sudoers output.
It is also possible to filter the generated output file by user,
group or host name.
* The file, ldap and sss sudoers back-ends now share a common set
of formatting functions for "sudo -l" output, which is also used
by the cvtsudoers utility.
* The /run directory is now used in preference to /var/run if it
exists. Bug #822.
* More accurate descriptions of the --with-rundir and --with-vardir
configure options. Bug #823.
* The setpassent() and setgroupent() functions are now used on systems
that support them to keep the passwd and group database open.
Sudo performs a lot of passwd and group lookups so it can be
beneficial to avoid opening and closing the files each time.
* The new case_insensitive_user and case_insensitive_group sudoers
options can be used to control whether sudo does case-sensitive
matching of users and groups in sudoers. Case insensitive
matching is now the default.
* Fixed a bug on some systems where sudo could hang on command
exit when I/O logging was enabled. Bug #826.
* Fixed the build-time process start time test on Linux when the
test is run from within a container. Bug #829.
* When determining which temporary directory to use, sudoedit now
checks the directory for writability before using it. Previously,
sudoedit only performed an existence check. Bug #827.
* Sudo now includes an optional set of Monty Python-inspired insults.
* Fixed the execution of scripts with an associated digest (checksum)
in sudoers on FreeBSD systems. FreeBSD does not have a proper
/dev/fd directory mounted by default and its fexecve(2) is not
fully POSIX compliant when executing scripts. Bug #831.
* Chinese (Taiwan) translation for sudo from translationproject.org.
What's new in Sudo 1.8.22
* Commands run in the background from a script run via sudo will
no longer receive SIGHUP when the parent exits and I/O logging
is enabled. Bug #502
* A particularly offensive insult is now disabled by default.
Bug #804
* The description of "sudo -i" now correctly documents that
the "env_keep" and "env_check" sudoers options are applied to
the environment. Bug #806
* Fixed a crash when the system's host name is not set.
Bug #807
* The sudoers2ldif script now handles #include and #includedir
directives.
* Fixed a bug where sudo would silently exit when the command was
not allowed by sudoers and the "passwd_tries" sudoers option
was set to a value less than one.
* Fixed a bug with the "listpw" and "verifypw" sudoers options and
multiple sudoers sources. If the option is set to "all", a
password should be required unless none of a user's sudoers
entries from any source require authentication.
* Fixed a bug with the "listpw" and "verifypw" sudoers options in
the LDAP and SSSD back-ends. If the option is set to "any", and
the entry contained multiple rules, only the first matching rule
was checked. If an entry contained more than one matching rule
and the first rule required authentication but a subsequent rule
did not, sudo would prompt for a password when it should not have.
* When running a command as the invoking user (not root), sudo
would execute the command with the same group vector it was
started with. Sudo now executes the command with a new group
vector based on the group database which is consistent with
how su(1) operates.
* Fixed a double free in the SSSD back-end that could occur when
ipa_hostname is present in sssd.conf and is set to an unqualified
host name.
* When I/O logging is enabled, sudo will now write to the terminal
even when it is a background process. Previously, sudo would
only write to the tty when it was the foreground process when
I/O logging was enabled. If the TOSTOP terminal flag is set,
sudo will suspend the command (and then itself) with the SIGTTOU
signal.
* A new "authfail_message" sudoers option that overrides the
default "N incorrect password attempt(s)".
* An empty sudoRunAsUser attribute in the LDAP and SSSD back-ends
will now match the invoking user. This is more consistent with
how an empty runas user in the sudoers file is treated.
* Documented that in check mode, visudo does not check the owner/mode
on files specified with the -f flag. Bug #809.
* It is now an error to specify the runas user as an empty string
on the command line. Previously, an empty runas user was treated
the same as an unspecified runas user. Bug #817.
* When "timestamp_type" option is set to "tty" and a terminal is
present, the time stamp record will now include the start time
of the session leader. When the "timestamp_type" option is set
to "ppid" or when no terminal is available, the start time of
the parent process is used instead. This significantly reduces
the likelihood of a time stamp record being re-used when a user
logs out and back in again. Bug #818.
* The sudoers time stamp file format is now documented in the new
sudoers_timestamp manual.
* The "timestamp_type" option now takes a "kernel" value on OpenBSD
systems. This causes the tty-based time stamp to be stored in
the kernel instead of on the file system. If no tty is present,
the time stamp is considered to be invalid.
* Visudo will now use the SUDO_EDITOR environment variable (if
present) in addition to VISUAL and EDITOR.
What's new in Sudo 1.8.21p2
* Fixed a bug introduced in version 1.8.21 which prevented sudo
from using the PAM-supplied prompt. Bug #799
* Fixed a bug introduced in version 1.8.21 which could result in
sudo hanging when running commands that exit quickly. Bug #800
* Fixed a bug introduced in version 1.8.21 which prevented the
command from being run when the password was read via an external
program using the askpass interface. Bug #801
What's new in Sudo 1.8.21p1
* On systems that support both PAM and SIGINFO, the main sudo
process will no longer forward SIGINFO to the command if the
signal was generated from the keyboard. The command will have
already received SIGINFO since it is part of the same process
group so there's no need for sudo to forward it. This is
consistent with the handling of SIGINT, SIGQUIT and SIGTSTP.
Bug #796
* If SUDOERS_SEARCH_FILTER in ldap.conf does not specify a value,
the LDAP search expression used when looking up netgroups and
non-Unix groups had a syntax error if a group plugin was not
specified.
* "sudo -U otheruser -l" will now have an exit value of 0 even
if "otheruser" has no sudo privileges. The exit value when a
user attempts to lists their own privileges or when a command
is specified is unchanged.
* Fixed a regression introduced in sudo 1.8.21 where sudoreplay
playback would hang for I/O logs that contain terminal input.
* Sudo 1.8.18 contained an incomplete fix for the matching of
entries in the LDAP and SSSD back-ends when a sudoRunAsGroup is
specified but no sudoRunAsUser is present in the sudoRole.
What's new in Sudo 1.8.21
* The path that sudo uses to search for terminal devices can now
be configured via the new "devsearch" Path setting in sudo.conf.
* It is now possible to preserve bash shell functions in the
environment when the "env_reset" sudoers setting is disabled by
removing the "*=()*" pattern from the env_delete list.
* A change made in sudo 1.8.15 inadvertently caused sudoedit to
send itself SIGHUP instead of exiting when the editor returns
an error or the file was not modified.
* Sudoedit now uses an exit code of zero if the file was not
actually modified. Previously, sudoedit treated a lack of
modifications as an error.
* When running a command in a pseudo-tty (pty), sudo now copies a
subset of the terminal flags to the new pty. Previously, all
flags were copied, even those not appropriate for a pty.
* Fixed a problem with debug logging in the sudoers I/O logging
plugin.
* Window size change events are now logged to the policy plugin.
On xterm and compatible terminals, sudoreplay is now capable of
resizing the terminal to match the size of the terminal the
command was run on. The new -R option can be used to disable
terminal resizing.
* Fixed a bug in visudo where a newly added file was not checked
for syntax errors. Bug #791.
* Fixed a bug in visudo where if a syntax error in an include
directory (like /etc/sudoers.d) was detected, the edited version
was left as a temporary file instead of being installed.
* On PAM systems, sudo will now treat "username's Password:" as
a standard password prompt. As a result, the SUDO_PROMPT
environment variable will now override "username's Password:"
as well as the more common "Password:". Previously, the
"passprompt_override" Defaults setting would need to be set for
SUDO_PROMPT to override a prompt of "username's Password:".
* A new "syslog_pid" sudoers setting has been added to include
sudo's process ID along with the process name when logging via
syslog. Bug #792.
* Fixed a bug introduced in sudo 1.8.18 where a command would
not be terminated when the I/O logging plugin returned an error
to the sudo front-end.
* A new "timestamp_type" sudoers setting has been added that replaces
the "tty_tickets" option. In addition to tty and global time stamp
records, it is now possible to use the parent process ID to restrict
the time stamp to commands run by the same process, usually the shell.
Bug #793.
* The --preserve-env command line option has been extended to accept
a comma-separated list of environment variables to preserve.
Bug #279.
* Friulian translation for sudo from translationproject.org.
What's new in Sudo 1.8.20p2
* Fixed a bug parsing /proc/pid/stat on Linux when the process
name contains newlines. This is not exploitable due to the /dev
traversal changes in sudo 1.8.20p1.
What's new in Sudo 1.8.20p1
* Fixed "make check" when using OpenSSL or GNU crypt.
Bug #787.
* Fixed CVE-2017-1000367, a bug parsing /proc/pid/stat on Linux
when the process name contains spaces. Since the user has control
over the command name, this could potentially be used by a user
with sudo access to overwrite an arbitrary file on systems with
SELinux enabled. Also stop performing a breadth-first traversal
of /dev when looking for the device; only a hard-coded list of
directories are checked,
What's new in Sudo 1.8.20
* Added support for SASL_MECH in ldap.conf. Bug #764
* Added support for digest matching when the command is a glob-style
pattern or a directory. Previously, only explicit path matches
supported digest checks.
* New "fdexec" Defaults option to control whether a command
is executed by path or by open file descriptor.
* The embedded copy of zlib has been upgraded to version 1.2.11.
* Fixed a bug that prevented sudoers include files with a relative
path starting with the letter 'i' from being opened. Bug #776.
* Added support for command timeouts in sudoers. The command will
be terminated if the timeout expires.
* The SELinux role and type are now displayed in the "sudo -l"
output for the LDAP and SSSD back-ends, just as they are in the
sudoers back-end.
* A new command line option, -T, can be used to specify a command
timeout as long as the user-specified timeout is not longer than
the timeout specified in sudoers. This option may only be
used when the "user_command_timeouts" flag is enabled in sudoers.
* Added NOTBEFORE and NOTAFTER command options to the sudoers
back-end similar to what is already available in the LDAP back-end.
* Sudo can now optionally use the SHA2 functions in OpenSSL or GNU
crypt instead of the SHA2 implementation bundled with sudo.
* Fixed a compilation error on systems without the stdbool.h header
file. Bug #778.
* Fixed a compilation error in the standalone Kerberos V authentication
module. Bug #777.
* Added the iolog_flush flag to sudoers which causes I/O log data
to be written immediately to disk instead of being buffered.
* I/O log files are now created with group ID 0 by default unless
the "iolog_user" or "iolog_group" options are set in sudoers.
* It is now possible to store I/O log files on an NFS-mounted
file system where uid 0 is remapped to an unprivileged user.
The "iolog_user" option must be set to a non-root user and the
top-level I/O log directory must exist and be owned by that user.
* Added the restricted_env_file setting to sudoers which is similar
to env_file but its contents are subject to the same restrictions
as variables in the invoking user's environment.
* Fixed a use after free bug in the SSSD back-end when the fqdn
sudoOption is enabled and no hostname value is present in
/etc/sssd/sssd.conf.
* Fixed a typo that resulted in a compilation error on systems
where the killpg() function is not found by configure.
* Fixed a compilation error with the included version of zlib
when sudo was built outside the source tree.
* Fixed the exit value of sudo when the command is terminated by
a signal other than SIGINT. This was broken in sudo 1.8.15 by
the fix for Bug #722. Bug #784.
* Fixed a regression introduced in sudo 1.8.18 where the "lecture"
option could not be used in a positive boolean context, only
a negative one.
* Fixed an issue where sudo would consume stdin if it was not
connected to a tty even if log_input is not enabled in sudoers.
Bug #786.
* Clarify in the sudoers manual that the #includedir directive
diverts control to the files in the specified directory and,
when parsing of those files is complete, returns control to the
original file. Bug #775.
What's new in Sudo 1.8.19p2
* Fixed a crash in visudo introduced in sudo 1.8.9 when an IP address
or network is used in a host-based Defaults entry. Bug #766
* Added a missing check for the ignore_iolog_errors flag when
the sudoers plugin generates the I/O log file path name.
* Fixed a typo in sudo's vsyslog() replacement that resulted in
garbage being logged to syslog.
What's new in Sudo 1.8.19p1
* Fixed a bug introduced in sudo 1.8.19 that resulted in the wrong
syslog priority and facility being used.
What's new in Sudo 1.8.19
* New "syslog_maxlen" Defaults option to control the maximum size of
syslog messages generated by sudo.
* Sudo has been run against PVS-Studio and any issues that were
not false positives have been addressed.
* I/O log files are now created with the same group ID as the
parent directory and not the invoking user's group ID.
* I/O log permissions and ownership are now configurable via the
"iolog_mode", "iolog_user" and "iolog_group" sudoers Defaults
variables.
* Fixed configuration of the sudoers I/O log plugin debug subsystem.
Previously, I/O log information was not being written to the
sudoers debug log.
* Fixed a bug in visudo that broke editing of files in an include
dir that have a syntax error. Normally, visudo does not edit
those files, but if a syntax error is detected in one, the user
should get a chance to fix it.
* Warnings about unknown or unparsable sudoers Defaults entries now
include the file and line number of the problem.
* Visudo will now use the file and line number information about an
unknown or unparsable Defaults entry to go directly to the file
with the problem.
* Fixed a bug in the sudoers LDAP back-end where a negated sudoHost
entry would prevent other sudoHost entries following it from matching.
* Warnings from visudo about a cycle in an Alias entry now include the
file and line number of the problem.
* In strict mode, visudo will now use the file and line number
information about a cycle in an Alias entry to go directly to the
file with the problem.
* The sudo_noexec.so file is now linked with -ldl on systems that
require it for the wordexp() wrapper.
* Fixed linking of sudo_noexec.so on macOS systems where it must be
a dynamic library and not a module.
* Sudo's "make check" now includes a test for sudo_noexec.so
working.
* The sudo front-end now passes the user's umask to the plugin.
Previously the plugin had to determine this itself.
* Sudoreplay can now display the stdin and ttyin streams when they
are explicitly added to the filter list.
* Fixed a bug introduced in sudo 1.8.17 where the "all" setting
for verifypw and listpw was not being honored. Bug #762.
* The syslog priority (syslog_goodpri and syslog_badpri) can now
be negated or set to "none" to disable logging of successful or
unsuccessful sudo attempts via syslog.
What's new in Sudo 1.8.18p1
* When sudo_noexec.so is used, the WRDE_NOCMD flag is now added
if the wordexp() function is called. This prevents commands
from being run via wordexp() without disabling it entirely.
* On Linux systems, sudo_noexec.so now uses a seccomp filter to
disable execute access if the kernel supports seccomp. This is
more robust than the traditional method of using stub functions
that return an error.
What's new in Sudo 1.8.18
* The sudoers locale is now set before parsing the sudoers file.
If sudoers_locale is set in sudoers, it is applied before
evaluating other Defaults entries. Previously, sudoers_locale
was used when evaluating sudoers but not during the initial parse.
Bug #748.
* A missing or otherwise invalid #includedir is now ignored instead
of causing a parse error.
* During "make install", backup files are only used on HP-UX where
it is not possible to unlink a shared object that is in use.
This works around a bug in ldconfig on Linux which could create
links to the backup shared library file instead of the current
one.
* Fixed a bug introduced in 1.8.17 where sudoers entries with long
commands lines could be truncated, preventing a match. Bug #752.
* The fqdn, runas_default and sudoers_locale Defaults settings are
now applied before any other Defaults settings since they can
change how other Defaults settings are parsed.
* On systems without the O_NOFOLLOW open(2) flag, when the NOFOLLOW
flag is set, sudoedit now checks whether the file is a symbolic link
before opening it as well as after the open. Bug #753.
* Sudo will now only resolve a user's group IDs to group names
when sudoers includes group-based permissions. Group lookups
can be expensive on some systems where the group database is
not local.
* If the file system holding the sudo log file is full, allow
the command to run unless the new ignore_logfile_errors Defaults
option is disabled. Bug #751.
* The ignore_audit_errors and ignore_iolog_errors Defaults options
have been added to control sudo's behavior when it is unable to
write to the audit and I/O logs.
* Fixed a bug introduced in 1.8.17 where the SIGPIPE signal handler
was not being restored when sudo directly executes the command.
* Fixed a bug where "sudo -l command" would indicate that a command
was runnable even when denied by sudoers when using the LDAP or
SSSD back-ends.
* The match_group_by_gid Defaults option has been added to allow
sites where group name resolution is slow and where sudoers only
contains a small number of groups to match groups by group ID
instead of by group name.
* Fixed a bug on Linux where a 32-bit sudo binary could fail with
an "unable to allocate memory" error when run on a 64-bit system.
Bug #755
* When parsing ldap.conf, sudo will now only treat a '#' character
as the start of a comment when it is at the beginning of the
line.
* Fixed a potential crash when auditing is enabled and the audit
function fails with an error. Bug #756
* Norwegian Nynorsk translation for sudo from translationproject.org.
* Fixed a typo that broke short host name matching when the fqdn
flag is enabled in sudoers. Bug #757
* Negated sudoHost attributes are now supported by the LDAP and
SSSD back-ends.
* Fixed matching entries in the LDAP and SSSD back-ends when a
RunAsGroup is specified but no RunAsUser is present.
* Fixed "sudo -l" output in the LDAP and SSSD back-ends when a
RunAsGroup is specified but no RunAsUser is present.
What's new in Sudo 1.8.17p1
* Fixed a bug introduced in 1.8.17 where the user's groups were
not set on systems that don't use PAM. Bug #749.
What's new in Sudo 1.8.17
* On AIX, if /etc/security/login.cfg has auth_type set to PAM_AUTH
but pam_start(3) fails, fall back to AIX authentication.
Bug #740.
* Sudo now takes all sudoers sources into account when determining
whether or not "sudo -l" or "sudo -v" should prompt for a password.
In other words, if both file and ldap sudoers sources are in
specified in /etc/nsswitch.conf, "sudo -v" will now require that
all entries in both sources be have NOPASSWD (file) or !authenticate
(ldap) in the entries.
* Sudo now ignores SIGPIPE until the command is executed. Previously,
SIGPIPE was only ignored in a few select places. Bug #739.
* Fixed a bug introduced in sudo 1.8.14 where (non-syslog) log
file entries were missing the newline when loglinelen is set to
a non-positive number. Bug #742.
* Unix groups are now set before the plugin session initialization
code is run. This makes it possible to use dynamic groups with
the Linux-PAM pam_group module.
* Fixed a bug where a debugging statement could dereference a NULL
pointer when looking up a group that doesn't exist. Bug #743.
* Sudo has been run through the Coverity code scanner. A number of
minor bugs have been fixed as a result. None were security issues.
* SELinux support, which was broken in 1.8.16, has been repaired.
* Fixed a bug when logging I/O where all output buffers might not
get flushed at exit.
* Forward slashes are no longer escaped in the JSON output of
"visudo -x". This was never required by the standard and not
escaping them improves readability of the output.
* Sudo no longer treats PAM_SESSION_ERR as a fatal error when
opening the PAM session. Other errors from pam_open_session()
are still treated as fatal. This avoids the "policy plugin
failed session initialization" error message seen on some systems.
* Korean translation for sudo and sudoers from translationproject.org.
* Fixed a bug on AIX where the stack size hard resource limit was
being set to 2GB instead of 4GB on 64-bit systems.
* The SSSD back-end now properly supports "sudo -U otheruser -l".
* The SSSD back-end now uses the value of "ipa_hostname"
from sssd.conf, if specified, when matching the host name.
* Fixed a hang on some systems when the command is being run in
a pty and it failed to execute.
* When performing a wildcard match in sudoers, check for an exact
string match if the user command was fully-qualified (or resolved
via the PATH). This fixes an issue executing scripts on Linux
when there are multiple wildcard matches with the same base name.
Bug #746.
What's new in Sudo 1.8.16
* Fixed a compilation error on Solaris 10 with Stun Studio 12.
Bug #727.
* When preserving variables from the invoking user's environment, if
there are duplicates sudo now only keeps the first instance.
* Fixed a bug that could cause warning mail to be sent in list
mode (sudo -l) for users without sudo privileges when the
LDAP and sssd back-ends are used.
* Fixed a bug that prevented the "mail_no_user" option from working
properly with the LDAP back-end.
* In the LDAP and sssd back-ends, white space is now ignored between
an operator (!, +, +=, -=) when parsing a sudoOption.
* It is now possible to disable Path settings in sudo.conf
by omitting the path name.
* The sudoedit_checkdir Defaults option is now enabled by default
and has been extended. When editing files with sudoedit, each
directory in the path to be edited is now checked. If a directory
is writable by the invoking user, symbolic links will not be
followed. If the parent directory of the file to be edited is
writable, sudoedit will refuse to edit it.
Bug #707.
* The netgroup_tuple Defaults option has been added to enable matching
of the entire netgroup tuple, not just the host or user portion.
Bug #717.
* When matching commands based on the SHA2 digest, sudo will now
use fexecve(2) to execute the command if it is available. This
fixes a time of check versus time of use race condition when the
directory holding the command is writable by the invoking user.
* On AIX systems, sudo now caches the auth registry string along
with password and group information. This fixes a potential
problem when a user or group of the same name exists in multiple
auth registries. For example, local and LDAP.
* Fixed a crash in the SSSD back-end when the invoking user is not
found. Bug #732.
* Added the --enable-asan configure flag to enable address sanitizer
support. A few minor memory leaks have been plugged to quiet
the ASAN leak detector.
* The value of _PATH_SUDO_CONF may once again be overridden via
the Makefile. Bug #735.
* The sudoers2ldif script now handles multiple roles with same name.
* Fixed a compilation error on systems that have the posix_spawn()
and posix_spawnp() functions but an unusable spawn.h header.
Bug #730.
* Fixed support for negating character classes in sudo's version
of the fnmatch() function.
* Fixed a bug in the LDAP and SSSD back-ends that could allow an
unauthorized user to list another user's privileges. Bug #738.
* The PAM conversation function now works around an ambiguity in the
PAM spec with respect to multiple messages. Bug #726.
What's new in Sudo 1.8.15
* Fixed a bug that prevented sudo from building outside the source tree
on some platforms. Bug #708.
* Fixed the location of the sssd library in the RHEL/Centos packages.
Bug #710.
* Fixed a build problem on systems that don't implicitly include
sys/types.h from other header files. Bug #711.
* Fixed a problem on Linux using containers where sudo would ignore
signals sent by a process in a different container.
* Sudo now refuses to run a command if the PAM session module
returns an error.
* When editing files with sudoedit, symbolic links will no longer
be followed by default. The old behavior can be restored by
enabling the sudoedit_follow option in sudoers or on a per-command
basis with the FOLLOW and NOFOLLOW tags. Bug #707.
* Fixed a bug introduced in version 1.8.14 that caused the last
valid editor in the sudoers "editor" list to be used by visudo
and sudoedit instead of the first. Bug #714.
* Fixed a bug in visudo that prevented the addition of a final
newline to edited files without one.
* Fixed a bug decoding certain base64 digests in sudoers when the
intermediate format included a '=' character.
* Individual records are now locked in the time stamp file instead
of the entire file. This allows sudo to avoid prompting for a
password multiple times on the same terminal when used in a
pipeline. In other words, "sudo cat foo | sudo grep bar" now
only prompts for the password once. Previously, both sudo
processes would prompt for a password, often making it impossible
to enter.
* Fixed a bug where sudo would fail to run commands as a non-root
user on systems that lack both setresuid() and setreuid().
Bug #713.
* Fixed a bug introduced in sudo 1.8.14 that prevented visudo from
re-editing the correct file when a syntax error was detected.
* Fixed a bug where sudo would not relay a SIGHUP signal to the
command when the terminal is closed and the command is not run
in its own pseudo-tty. Bug #719
* If some, but not all, of the LOGNAME, USER or USERNAME environment
variables have been preserved from the invoking user's environment,
sudo will now use the preserved value to set the remaining variables
instead of using the runas user. This ensures that if, for example,
only LOGNAME is present in the env_keep list, that sudo will not
set USER and USERNAME to the runas user.
* When the command sudo is running dies due to a signal, sudo will
now send itself that same signal with the default signal handler
installed instead of exiting. The bash shell appears to ignore
some signals, e.g., SIGINT, unless the command being run is killed
by that signal. This makes the behavior of commands run under
sudo the same as without sudo when bash is the shell. Bug #722
* Slovak translation for sudo from translationproject.org.
* Hungarian and Slovak translations for sudoers from translationproject.org.
* Previously, when env_reset was enabled (the default) and the -s
option was not used, the SHELL environment variable was set to the
shell of the invoking user. Now, when env_reset is enabled and
the -s option is not used, SHELL is set based on the target user.
* Fixed challenge/response style BSD authentication.
* Added the sudoedit_checkdir Defaults option to prevent sudoedit
from editing files located in a directory that is writable by
the invoking user.
* Added the always_query_group_plugin Defaults option to control
whether groups not found in the system group database are passed
to the group plugin. Previously, unknown system groups were
always passed to the group plugin.
* When creating a new file, sudoedit will now check that the file's
parent directory exists before running the editor.
* Fixed the compiler stack protector test in configure for compilers
that support -fstack-protector but don't actually have the ssp
library available.
What's new in Sudo 1.8.14p3
* Fixed a bug introduced in sudo 1.8.14p2 that prevented sudo
from working when no tty was present.
* Fixed tty detection on newer AIX systems where dev_t is 64-bit.
What's new in Sudo 1.8.14p2
* Fixed a bug introduced in sudo 1.8.14 that prevented the lecture
file from being created. Bug #704.
What's new in Sudo 1.8.14p1
* Fixed a bug introduced in sudo 1.8.14 that prevented the sssd
back-end from working. Bug #703.
What's new in Sudo 1.8.14
* Log messages on Mac OS X now respect sudoers_locale when sudo
is build with NLS support.
* The sudo manual pages now pass "mandoc -Tlint" with no warnings.
* Fixed a compilation problem on systems with the sig2str() function
that do not define SIG2STR_MAX in signal.h.
* Worked around a compiler bug that resulted in unexpected behavior
when returning an int from a function declared to return bool
without an explicit cast.
* Worked around a bug in Mac OS X 10.10 BSD auditing where the
au_preselect() fails for AUE_sudo events but succeeds for
AUE_DARWIN_sudo.
* Fixed a hang on Linux systems with glibc when sudo is linked with
jemalloc.
* When the user runs a command as a user ID that is not present in
the password database via the -u flag, the command is now run
with the group ID of the invoking user instead of group ID 0.
* Fixed a compilation problem on systems that don't pull in
definitions of uid_t and gid_t without sys/types.h or unistd.h.
* Fixed a compilation problem on newer AIX systems which use a
struct st_timespec for time stamps in struct stat that differs
from struct timespec. Bug #702.
* The example directory is now configurable via --with-exampledir
and defaults to DATAROOTDIR/examples/sudo on BSD systems.
* The /usr/lib/tmpfiles.d/sudo.conf file is now installed as part
of "make install" when systemd is in use.
* Fixed a linker problem on some systems with libintl. Bug #690.
* Fixed compilation with compilers that don't support __func__
or __FUNCTION__.
* Sudo no longer needs to uses weak symbols to support localization
in the warning functions. A registration function is used instead.
* Fixed a setresuid() failure in sudoers on Linux kernels where
uid changes take the nproc resource limit into account.
* Fixed LDAP netgroup queries on AIX.
* Sudo will now display the custom prompt on Linux systems with PAM
even if the "Password: " prompt is not localized by the PAM module.
Bug #701.
* Double-quoted values in an LDAP sudoOption are now supported
for consistency with file-based sudoers.
* Fixed a bug that prevented the btime entry in /proc/stat from
being parsed on Linux.
What's new in Sudo 1.8.13
* The examples directory is now a subdirectory of the doc dir to
conform to Debian guidelines. Bug #682.
* Fixed a compilation error for siglist.c and signame.c on some
systems. Bug #686
* Weak symbols are now used for sudo_warn_gettext() and
sudo_warn_strerror() in libsudo_util to avoid link errors when
-Wl,--no-undefined is used in LDFLAGS. The --disable-weak-symbols
configure option can be used to disable the user of weak symbols.
* Fixed a bug in sudo's mkstemps() replacement function that
prevented the file extension from being preserved in sudoedit.
* A new mail_all_cmnds sudoers flag will send mail when a user runs
a command (or tries to). The behavior of the mail_always flag has
been restored to always send mail when sudo is run.
* New "MAIL" and "NOMAIL" command tags have been added to toggle
mail sending behavior on a per-command (or Cmnd_Alias) basis.
* Fixed matching of empty passwords when sudo is configured to
use passwd (or shadow) file authentication on systems where the
crypt() function returns NULL for invalid salts.
* On AIX, sudo now uses the value of the auth_type setting in
/etc/security/login.cfg to determine whether to use LAM or PAM
for user authentication.
* The "all" setting for listpw and verifypw now works correctly
with LDAP and sssd sudoers.
* The sudo timestamp directory is now created at boot time on
platforms that use systemd.
* Sudo will now restore the value of the SIGPIPE handler before
executing the command.
* Sudo now uses "struct timespec" instead of "struct timeval" for
time keeping when possible. If supported, sudoedit and visudo
now use nanosecond granularity time stamps.
* Fixed a symbol name collision with systems that have their own
SHA2 implementation. This fixes a problem where PAM could use
the wrong SHA2 implementation on Solaris 10 systems configured
to use SHA512 for passwords.
* The editor invoked by sudoedit once again uses an unmodified
copy of the user's environment as per the documentation. This
was inadvertently changed in sudo 1.8.0. Bug #688.
What's new in Sudo 1.8.12
* The embedded copy of zlib has been upgraded to version 1.2.8 and
is now installed as a shared library where supported.
* Debug settings for the sudo front end and sudoers plugin are now
configured separately.
* Multiple sudo.conf Debug entries may now be specified per program
(or plugin).
* The plugin API has been extended such that the path to the plugin
that was loaded is now included in the settings array. This
path can be used to register with the debugging subsystem. The
debug_flags setting is now prefixed with a file name and may be
specified multiple times if there is more than one matching Debug
setting in sudo.conf.
* The sudoers regression tests now run with the locale set to C
since some of the tests compare output that includes locale-specific
messages. Bug #672
* Fixed a bug where sudo would not run commands on Linux when
compiled with audit support if audit is disabled. Bug #671
* Added __BASH_FUNC<* to the environment blacklist to match
Apple's syntax for newer-style bash functions.
* The default password prompt now includes a trailing space after
"Password:" for consistency with su(1) on most systems.
Bug #663
* Fixed a problem on DragonFly BSD where SIGCHLD could be ignored,
preventing sudo from exiting. Bug #676
* Visudo will now use the optional sudoers_file, sudoers_mode,
sudoers_uid and sudoers_gid arguments if specified on the
sudoers.so Plugin line in the sudo.conf file.
* Fixed a problem introduced in sudo 1.8.8 that prevented the full
host name from being used when the "fqdn" sudoers option is used.
Bug #678
* French and Russian translations for sudoers from translationproject.org.
* Sudo now installs a handler for SIGCHLD signal handler immediately
before stating the process that will execute the command (or
start the monitor). The handler used to be installed earlier
but this causes problems with poorly behaved PAM modules that
install their own SIGCHLD signal handler and neglect to restore
sudo's original handler. Bug #657
* Removed a limit on the length of command line arguments expanded
by a wild card using sudo's version of the fnmatch() function.
This limit was introduced when sudo's version of fnmatch()
was replaced in sudo 1.8.4.
* LDAP-based sudoers can now query an LDAP server for a user's
netgroups directly. This is often much faster than fetching
every sudoRole object containing a sudoUser that begins with a
`+' prefix and checking whether the user is a member of any of
the returned netgroups.
* The mail_always sudoers option no longer sends mail for "sudo -l"
or "sudo -v" unless the user is unable to authenticate themselves.
* Fixed a crash when sudo is run with an empty argument vector.
* Fixed two potential crashes when sudo is run with very low
resource limits.
* The TZ environment variable is now checked for safety instead
of simply being copied to the environment of the command.
What's new in Sudo 1.8.11p2
* Fixed a bug where dynamic shared objects loaded from a plugin
could use the hooked version of getenv() but not the hooked
versions of putenv(), setenv() or unsetenv(). This can cause
problems for PAM modules that use those functions.
What's new in Sudo 1.8.11p1
* Fixed a compilation problem on some systems when the
--disable-shared-libutil configure option was specified.
* The user can no longer interrupt the sleep after an incorrect
password on PAM systems using pam_unix.
Bug #666
* Fixed a compilation problem on Linux systems that do not use PAM.
Bug #667
* "make install" will now work with the stock GNU autotools
install-sh script. Bug #669
* Fixed a crash with "sudo -i" when the current working directory
does not exist. Bug #670
* Fixed a potential crash in the debug subsystem when logging a message
larger that 1024 bytes.
* Fixed a "make check" failure for ttyname when stdin is closed and
stdout and stderr are redirected to a different tty. Bug #643
* Added BASH_FUNC_* to the environment blacklist to match newer-style
bash functions.
What's new in Sudo 1.8.11
* The sudoers plugin no longer uses setjmp/longjmp to recover
from fatal errors. All errors are now propagated to the caller
via return codes.
* When running a command in the background, sudo will now forward
SIGINFO to the command (if supported).
* Sudo will now use the system versions of the sha2 functions from
libc or libmd if available.
* Visudo now works correctly on GNU Hurd. Bug #647
* Fixed suspend and resume of curses programs on some system when
the command is not being run in a pseudo-terminal. Bug #649
* Fixed a crash with LDAP-based sudoers on some systems when
Kerberos was enabled.
* Sudo now includes optional Solaris audit support.
* Catalan translation for sudoers from translationproject.org.
* Norwegian Bokmaal translation for sudo from translationproject.org.
* Greek translation for sudoers from translationproject.org
* The sudo source tree has been reorganized to more closely resemble
that of other gettext-enabled packages.
* Sudo and its associated programs now link against a shared version
of libsudo_util. The --disable-shared-libutil configure option
may be used to force static linking if the --enable-static-sudoers
option is also specified.
* The passwords in ldap.conf and ldap.secret may now be encoded
in base64.
* Audit updates. SELinux role changes are now audited. For
sudoedit, we now audit the actual editor being run, instead of
just the sudoedit command.
* Fixed bugs in the man page post-processing that could cause
portions of the manuals to be removed.
* Fixed a crash in the system_group plugin. Bug #653.
* Fixed sudoedit on platforms without a system version of the
getprogname() function. Bug #654.
* Fixed compilation problems with some pre-C99 compilers.
* Fixed sudo's -C option which was broken in version 1.8.9.
* It is now possible to match an environment variable's value as
well as its name using env_keep and env_check. This can be used
to preserve bash functions which would otherwise be removed from
the environment.
* New files created via sudoedit as a non-root user now have the
proper group id. Bug #656
* Sudoedit now works correctly in conjunction with sudo's SELinux
RBAC support. Temporary files are now created with the proper
security context.
* The sudo I/O logging plugin API has been updated. If a logging
function returns an error, the command will be terminated and
all of the plugin's logging functions will be disabled. If a
logging function rejects the command's output it will no longer
be displayed to the user's terminal.
* Fixed a compilation error on systems that lack openpty(), _getpty()
and grantpt(). Bug #660
* Fixed a hang when a sudoers source is listed more than once in
a single sudoers nsswitch.conf entry.
* On AIX, shell scripts without a #! magic number are now passed to
/usr/bin/sh, not /usr/bin/bsh. This is consistent with what the
execvp() function on AIX does and matches historic sudo behavior.
Bug #661
* Fixed a cross-compilation problem building mksiglist and mksigname.
Bug #662
What's new in Sudo 1.8.10p3?
* Fixed expansion of %p in the prompt for "sudo -l" when rootpw,
runaspw or targetpw is set. Bug #639
* Fixed matching of UIDs and GIDs which was broken in version 1.8.9.
Bug #640
* PAM credential initialization has been re-enabled. It was
unintentionally disabled by default in version 1.8.8. The way
credentials are initialized has also been fixed. Bug #642.
* Fixed a descriptor leak on Linux when determining boot time. Sudo
normally closes extra descriptors before running a command so
the impact is limited. Bug #645
* Fixed flushing of the last buffer of data when I/O logging is
enabled. This bug, introduced in version 1.8.9, could cause
incomplete command output on some systems. Bug #646
What's new in Sudo 1.8.10p2?
* Fixed a hang introduced in sudo 1.8.10 when timestamp_timeout
is set to zero.
What's new in Sudo 1.8.10p1?
* Fixed a bug introduced in sudo 1.8.10 that prevented the disabling
of tty-based tickets.
* Fixed a bug with negated commands in "sudo -l command" that
could cause the command to be listed even when it was explicitly
denied. This only affected list mode when a command was specified.
Bug #636
What's new in Sudo 1.8.10?
* It is now possible to disable network interface probing in
sudo.conf by changing the value of the probe_interfaces
setting.
* When listing a user's privileges (sudo -l), the sudoers plugin
will now prompt for the user's password even if the targetpw,
rootpw or runaspw options are set.
* The sudoers plugin uses a new format for its time stamp files.
Each user now has a single file which may contain multiple records
when per-tty time stamps are in use (the default). The time
stamps use a monotonic timer where available and are once again
located in a directory under /var/run. The lecture status is
now stored separately from the time stamps in a different directory.
Bug #616
* sudo's -K option will now remove all of the user's time stamps,
not just the time stamp for the current terminal. The -k option
can be used to only disable time stamps for the current terminal.
* If sudo was started in the background and needed to prompt for
a password, it was not possible to suspend it at the password
prompt. This now works properly.
* LDAP-based sudoers now uses a default search filter of
(objectClass=sudoRole) for more efficient queries. The netgroup
query has been modified to avoid falling below the minimum length
for OpenLDAP substring indices.
* The new "use_netgroups" sudoers option can be used to explicitly
enable or disable netgroups support. For LDAP-based sudoers,
netgroup support requires an expensive substring match on the
server. If netgroups are not needed, this option can be disabled
to reduce the load on the LDAP server.
* Sudo is once again able to open the sudoers file when the group
on sudoers doesn't match the expected value, so long as the file
is not group writable.
* Sudo now installs an init.d script to clear the time stamp
directory at boot time on AIX and HP-UX systems. These systems
either lack /var/run or do not clear it on boot.
* The JSON format used by "visudo -x" now properly supports the
negation operator. In addition, the Options object is now the
same for both Defaults and Cmnd_Specs.
* Czech and Serbian translations for sudoers from translationproject.org.
* Catalan translation for sudo from translationproject.org.
What's new in Sudo 1.8.9p5?
* Fixed a compilation error on AIX when LDAP support is enabled.
* Fixed parsing of the "umask" defaults setting in sudoers. Bug #632.
* Fixed a failed assertion when the "closefrom_override" defaults
setting is enabled in sudoers and sudo's -C flag is used. Bug #633.
What's new in Sudo 1.8.9p4?
* Fixed a bug where sudo could consume large amounts of CPU while
the command was running when I/O logging is not enabled. Bug #631
* Fixed a bug where sudo would exit with an error when the debug
level is set to util@debug or all@debug and I/O logging is not
enabled. The command would continue running after sudo exited.
What's new in Sudo 1.8.9p3?
* Fixed a bug introduced in sudo 1.8.9 that prevented the tty name
from being resolved properly on Linux systems. Bug #630.
What's new in Sudo 1.8.9p2?
* Updated config.guess, config.sub and libtool to support the ppc64le
architecture (IBM PowerPC Little Endian).
What's new in Sudo 1.8.9p1?
* Fixed a problem with gcc 4.8's handling of bit fields that could
lead to the noexec flag being enabled even when it was not
explicitly set.
What's new in Sudo 1.8.9?
* Reworked sudo's main event loop to use a simple event subsystem
using poll(2) or select(2) as the back end.
* It is now possible to statically compile the sudoers plugin into
the sudo binary without disabling shared library support. The
sudo.conf file may still be used to configure other plugins.
* Sudo can now be compiled again with a C preprocessor that does
not support variadic macros.
* Visudo can now export a sudoers file in JSON format using the
new -x flag.
* The locale is now set correctly again for visudo and sudoreplay.
* The plugin API has been extended to allow the plugin to exclude
specific file descriptors from the "closefrom" range.
* There is now a workaround for a Solaris-specific problem where
NOEXEC was overriding traditional root DAC behavior.
* Add user netgroup filtering for SSSD. Previously, rules for
a netgroup were applied to all even when they did not belong
to the specified netgroup.
* On systems with BSD login classes, if the user specified a group
(not a user) to run the command as, it was possible to specify
a different login class even when the command was not run as the
super user.
* The closefrom() emulation on Mac OS X now uses /dev/fd if possible.
* Fixed a bug where sudoedit would not update the original file
from the temporary when PAM or I/O logging is not enabled.
* When recycling I/O logs, the log files are now truncated properly.
* Fixes bugs #617, #621, #622, #623, #624, #625, #626
What's new in Sudo 1.8.8?
* Removed a warning on PAM systems with stacked auth modules
where the first module on the stack does not succeed.
* Sudo, sudoreplay and visudo now support GNU-style long options.
* The -h (--host) option may now be used to specify a host name.
This is currently only used by the sudoers plugin in conjunction
with the -l (--list) option.
* Program usage messages and manual SYNOPSIS sections have been
simplified.
* Sudo's LDAP SASL support now works properly with Kerberos.
Previously, the SASL library was unable to locate the user's
credential cache.
* It is now possible to set the nproc resource limit to unlimited
via pam_limits on Linux (bug #565).
* New "pam_service" and "pam_login_service" sudoers options
that can be used to specify the PAM service name to use.
* New "pam_session" and "pam_setcred" sudoers options that
can be used to disable PAM session and credential support.
* The sudoers plugin now properly supports UIDs and GIDs
that are larger than 0x7fffffff on 32-bit platforms.
* Fixed a visudo bug introduced in sudo 1.8.7 where per-group
Defaults entries would cause an internal error.
* If the "tty_tickets" sudoers option is enabled (the default),
but there is no tty present, sudo will now use a ticket file
based on the parent process ID. This makes it possible to support
the normal timeout behavior for the session.
* Fixed a problem running commands that change their process
group and then attempt to change the terminal settings when not
running the command in a pseudo-terminal. Previously, the process
would receive SIGTTOU since it was effectively a background
process. Sudo will now grant the child the controlling tty and
continue it when this happens.
* The "closefrom_override" sudoers option may now be used in
a command-specified Defaults entry (bug #610).
* Sudo's BSM audit support now works on Solaris 11.
* Brazilian Portuguese translation for sudo and sudoers from
translationproject.org.
* Czech translation for sudo from translationproject.org.
* French translation for sudo from translationproject.org.
* Sudo's noexec support on Mac OS X 10.4 and above now uses dynamic
symbol interposition instead of setting DYLD_FORCE_FLAT_NAMESPACE=1
which causes issues with some programs.
* Fixed visudo's -q (--quiet) flag, broken in sudo 1.8.6.
* Root may no longer change its SELinux role without entering
a password.
* Fixed a bug introduced in Sudo 1.8.7 where the indexes written
to the I/O log timing file are two greater than they should be.
Sudoreplay now contains a work-around to parse those files.
* In sudoreplay's list mode, the "this" qualifier in "fromdate"
or "todate" expressions now behaves more sensibly. Previously,
it would often match a date that was "one more" than expected.
For example, "this week" now matches the current week instead
of the following week.
What's new in Sudo 1.8.7?
* The non-Unix group plugin is now supported when sudoers data
is stored in LDAP.
* Sudo now uses a workaround for a locale bug on Solaris 11.0
that prevents setuid programs like sudo from fully using locales.
* User messages are now always displayed in the user's locale,
even when the same message is being logged or mailed in a
different locale.
* Log files created by sudo now explicitly have the group set
to group ID 0 rather than relying on BSD group semantics (which
may not be the default).
* A new "exec_background" sudoers option can be used to initially
run the command without read access to the terminal when running
a command in a pseudo-tty. If the command tries to read from
the terminal it will be stopped by the kernel (via SIGTTIN or
SIGTTOU) and sudo will immediately restart it as the foreground
process (if possible). This allows sudo to only pass terminal
input to the program if the program actually is expecting it.
Unfortunately, a few poorly-behaved programs (like "su" on most
Linux systems) do not handle SIGTTIN and SIGTTOU properly.
* Sudo now uses an efficient group query to get all the groups
for a user instead of iterating over every record in the group
database on HP-UX and Solaris.
* Sudo now produces better error messages when there is an error
in the sudo.conf file.
* Two new settings have been added to sudo.conf to give the admin
better control of how group database queries are performed. The
"group_source" specifies how the group list for a user will be
determined. Legal values are "static" (use the kernel groups
list), "dynamic" (perform a group database query) and "adaptive"
(only perform a group database query if the kernel list is full).
The "max_groups" setting specifies the maximum number of groups
a user may belong to when performing a group database query.
* The sudo.conf file now supports line continuation by using a
backslash as the last character on the line.
* There is now a standalone sudo.conf manual page.
* Sudo now stores its libexec files in a "sudo" sub-directory instead
of in libexec itself. For backward compatibility, if the plugin
is not found in the default plugin directory, sudo will check
the parent directory if the default directory ends in "/sudo".
* The sudoers I/O logging plugin now logs the terminal size.
* A new sudoers option "maxseq" can be used to limit the number of
I/O log entries that are stored.
* The "system_group" and "group_file" sudoers group provider plugins
are now installed by default.
* The list output (sudo -l) output from the sudoers plugin is now
less ambiguous when an entry includes different runas users.
The long list output (sudo -ll) for file-based sudoers is now
more consistent with the format of LDAP-based sudoers.
* A UID may now be used in the sudoRunAsUser attributes for LDAP
sudoers.
* Minor plugin API change: the close and version functions are now
optional. If the policy plugin does not provide a close function
and the command is not being run in a new pseudo-tty, sudo may
now execute the command directly instead of in a child process.
* A new sudoers option "pam_session" can be used to disable sudo's
PAM session support.
* On HP-UX systems, sudo will now use the pstat() function to
determine the tty instead of ttyname().
* Turkish translation for sudo and sudoers from translationproject.org.
* Dutch translation for sudo and sudoers from translationproject.org.
* Tivoli Directory Server client libraries may now be used with
HP-UX where libibmldap has a hidden dependency on libCsup.
* The sudoers plugin will now ignore invalid domain names when
checking netgroup membership. Most Linux systems use the string
"(none)" for the NIS-style domain name instead of an empty string.
* New support for specifying a SHA-2 digest along with the command
in sudoers. Supported hash types are sha224, sha256, sha384 and
sha512. See the description of Digest_Spec in the sudoers manual
or the description of sudoCommand in the sudoers.ldap manual for
details.
* The paths to ldap.conf and ldap.secret may now be specified as
arguments to the sudoers plugin in the sudo.conf file.
* Fixed potential false positives in visudo's alias cycle detection.
* Fixed a problem where the time stamp file was being treated
as out of date on Linux systems where the change time on the
pseudo-tty device node can change after it is allocated.
* Sudo now only builds Position Independent Executables (PIE)
by default on Linux systems and verifies that a trivial test
program builds and runs.
* On Solaris 11.1 and higher, sudo binaries will now have the
ASLR tag enabled if supported by the linker.
What's new in Sudo 1.8.6p8?
* Terminal detection now works properly on 64-bit AIX kernels.
This was broken by the removal of the ttyname() fallback in Sudo
1.8.6p6. Sudo is now able to map an AIX 64-bit device number
to the corresponding device file in /dev.
* Sudo now checks for crypt() returning NULL when performing
passwd-based authentication.
What's new in Sudo 1.8.6p7?
* A time stamp file with the date set to the epoch by "sudo -k"
is now completely ignored regardless of what the local clock is
set to. Previously, if the local clock was set to a value between
the epoch and the time stamp timeout value, a time stamp reset
by "sudo -k" would be considered current.
* The tty-specific time stamp file now includes the session ID
of the sudo process that created it. If a process with the same
tty but a different session ID runs sudo, the user will now be
prompted for a password (assuming authentication is required for
the command).
What's new in Sudo 1.8.6p6?
* On systems where the controlling tty can be determined via /proc
or sysctl(), sudo will no longer fall back to using ttyname()
if the process has no controlling tty. This prevents sudo from
using a non-controlling tty for logging and time stamp purposes.
What's new in Sudo 1.8.6p5?
* Fixed a potential crash in visudo's alias cycle detection.
* Improved performance on Solaris when retrieving the group list
for the target user. On systems with a large number of groups
where the group database is not local (NIS, LDAP, AD), fetching
the group list could take a minute or more.
What's new in Sudo 1.8.6p4?
* The -fstack-protector is now used when linking visudo, sudoreplay
and testsudoers.
* Avoid building PIE binaries on FreeBSD/ia64 as they don't run
properly.
* Fixed a crash in visudo strict mode when an unknown Defaults
setting is encountered.
* Do not inform the user that the command was not permitted by the
policy if they do not successfully authenticate. This is a
regression introduced in sudo 1.8.6.
* Allow sudo to be build with sss support without also including
ldap support.
* Fixed running commands that need the terminal in the background
when I/O logging is enabled. E.g. "sudo vi &". When the command
is foregrounded, it will now resume properly.
What's new in Sudo 1.8.6p3?
* Fixed post-processing of the man pages on systems with legacy
versions of sed.
* Fixed "sudoreplay -l" on Linux systems with file systems that
set DT_UNKNOWN in the d_type field of struct dirent.
What's new in Sudo 1.8.6p2?
* Fixed suspending a command after it has already been resumed
once when I/O logging (or use_pty) is not enabled.
This was a regression introduced in version 1.8.6.
What's new in Sudo 1.8.6p1?
* Fixed the setting of LOGNAME, USER and USERNAME variables in the
command's environment when env_reset is enabled (the default).
This was a regression introduced in version 1.8.6.
* Sudo now honors SUCCESS=return in /etc/nsswitch.conf.
What's new in Sudo 1.8.6?
* Sudo is now built with the -fstack-protector flag if the
compiler supports it. Also, the -zrelro linker flag is used if
supported. The --disable-hardening configure option can be used
to build sudo without stack smashing protection.
* Sudo is now built as a Position Independent Executable (PIE)
if supported by the compiler and linker.
* If the user is a member of the "exempt" group in sudoers, they
will no longer be prompted for a password even if the -k flag
is specified with the command. This makes "sudo -k command"
consistent with the behavior one would get if the user ran "sudo
-k" immediately before running the command.
* The sudoers file may now be a symbolic link. Previously, sudo
would refuse to read sudoers unless it was a regular file.
* The sudoreplay command can now properly replay sessions where
no tty was present.
* The sudoers plugin now takes advantage of symbol visibility
controls when supported by the compiler or linker. As a result,
only a small number of symbols are exported which significantly
reduces the chances of a conflict with other shared objects.
* Improved support for the Tivoli Directory Server LDAP client
libraries. This includes support for using LDAP over SSL (ldaps)
as well as support for the BIND_TIMELIMIT, TLS_KEY and TLS_CIPHERS
ldap.conf options. A new ldap.conf option, TLS_KEYPW can be
used to specify a password to decrypt the key database.
* When constructing a time filter for use with LDAP sudoNotBefore
and sudoNotAfter attributes, the current time now includes tenths
of a second. This fixes a problem with timed entries on Active
Directory.
* If a user fails to authenticate and the command would be rejected
by sudoers, it is now logged with "command not allowed" instead
of "N incorrect password attempts". Likewise, the "mail_no_perms"
sudoers option now takes precedence over "mail_badpass".
* The sudo manuals are now formatted using the mdoc macros. Versions
using the legacy man macros are provided for systems that lack mdoc.
* New support for Solaris privilege sets. This makes it possible
to specify fine-grained privileges in the sudoers file on Solaris
10 and above. A Runas_Spec that contains no Runas_Lists can be
used to give a user the ability to run a command as themselves
but with an expanded privilege set.
* Fixed a problem with the reboot and shutdown commands on some
systems (such as HP-UX and BSD). On these systems, reboot sends
all processes (except itself) SIGTERM. When sudo received
SIGTERM, it would relay it to the reboot process, thus killing
reboot before it had a chance to actually reboot the system.
* Support for using the System Security Services Daemon (SSSD) as
a source of sudoers data.
* Slovenian translation for sudo and sudoers from translationproject.org.
* Visudo will now warn about unknown Defaults entries that are
per-host, per-user, per-runas or per-command.
* Fixed a race condition that could cause sudo to receive SIGTTOU
(and stop) when resuming a shell that was run via sudo when I/O
logging (and use_pty) is not enabled.
* Sending SIGTSTP directly to the sudo process will now suspend the
running command when I/O logging (and use_pty) is not enabled.
What's new in Sudo 1.8.5p3?
* Fixed the loading of I/O plugins that conform to a plugin API
version older than 1.2.
What's new in Sudo 1.8.5p2?
* Fixed use of the SUDO_ASKPASS environment variable which was
broken in Sudo 1.8.5.
* Fixed a problem reading the sudoers file when the file mode is
more restrictive than the expected mode. For example, when the
expected sudoers file mode is 0440 but the actual mode is 0400.
What's new in Sudo 1.8.5p1?
* Fixed a bug that prevented files in an include directory from
being evaluated.
What's new in Sudo 1.8.5?
* When "noexec" is enabled, sudo_noexec.so will now be prepended
to any existing LD_PRELOAD variable instead of replacing it.
* The sudo_noexec.so shared library now wraps the execvpe(),
exect(), posix_spawn() and posix_spawnp() functions.
* The user/group/mode checks on sudoers files have been relaxed.
As long as the file is owned by the sudoers UID, not world-writable
and not writable by a group other than the sudoers GID, the file
is considered OK. Note that visudo will still set the mode to
the value specified at configure time.
* It is now possible to specify the sudoers path, UID, GID and
file mode as options to the plugin in the sudo.conf file.
* Croatian, Galician, German, Lithuanian, Swedish and Vietnamese
translations from translationproject.org.
* /etc/environment is no longer read directly on Linux systems
when PAM is used. Sudo now merges the PAM environment into the
user's environment which is typically set by the pam_env module.
* The initial environment created when env_reset is in effect now
includes the contents of /etc/environment on AIX systems and the
"setenv" and "path" entries from /etc/login.conf on BSD systems.
* The plugin API has been extended in three ways. First, options
specified in sudo.conf after the plugin pathname are passed to
the plugin's open function. Second, sudo has limited support
for hooks that can be used by plugins. Currently, the hooks are
limited to environment handling functions. Third, the init_session
policy plugin function is passed a pointer to the user environment
which can be updated during session setup. The plugin API version
has been incremented to version 1.2. See the sudo_plugin manual
for more information.
* The policy plugin's init_session function is now called by the
parent sudo process, not the child process that executes the
command. This allows the PAM session to be open and closed in
the same process, which some PAM modules require.
* Fixed parsing of "Path askpass" and "Path noexec" in sudo.conf,
which was broken in version 1.8.4.
* On systems with an SVR4-style /proc file system, the /proc/pid/psinfo
file is now uses to determine the controlling terminal, if possible.
This allows tty-based tickets to work properly even when, e.g.,
standard input, output and error are redirected to /dev/null.
* The output of "sudoreplay -l" is now sorted by file name (or
sequence number). Previously, entries were displayed in the
order in which they were found on the file system.
* Sudo now behaves properly when I/O logging is enabled and the
controlling terminal is revoked (e.g., the running sshd is killed).
Previously, sudo may have exited without calling the I/O plugin's
close function which can lead to an incomplete I/O log.
* Sudo can now detect when a user has logged out and back in again
on Solaris 11, just like it can on Solaris 10.
* The built-in zlib included with Sudo has been upgraded to version
1.2.6.
* Setting the SSL parameter to start_tls in ldap.conf now works
properly when using Mozilla-based SDKs that support the
ldap_start_tls_s() function.
* The TLS_CHECKPEER parameter in ldap.conf now works when the
Mozilla NSS crypto back-end is used with OpenLDAP.
* A new group provider plugin, system_group, is included which
performs group look ups by name using the system groups database.
This can be used to restore the pre-1.7.3 sudo group lookup
behavior.
What's new in Sudo 1.8.4p5?
* Fixed a bug when matching against an IP address with an associated
netmask in the sudoers file. In certain circumstances, this
could allow users to run commands on hosts they are not authorized
for.
What's new in Sudo 1.8.4p4?
* Fixed a bug introduced in Sudo 1.8.4 which prevented "sudo -v"
from working.
What's new in Sudo 1.8.4p3?
* Fixed a crash on FreeBSD when no tty is present.
* Fixed a bug introduced in Sudo 1.8.4 that allowed users to
specify environment variables to set on the command line without
having sudo "ALL" permissions or the "SETENV" tag.
* When visudo is run with the -c (check) option, the sudoers
file(s) owner and mode are now also checked unless the -f option
was specified.
What's new in Sudo 1.8.4p2?
* Fixed a bug introduced in Sudo 1.8.4 where insufficient space
was allocated for group IDs in the LDAP filter.
* Fixed a bug introduced in Sudo 1.8.4 where the path to sudo.conf
was "/sudo.conf" instead of "/etc/sudo.conf".
* Fixed a bug introduced in Sudo 1.8.4 which could cause a hang
when I/O logging is enabled and input is from a pipe or file.
What's new in Sudo 1.8.4p1?
* Fixed a bug introduced in sudo 1.8.4 that broke adding to or
deleting from the env_keep, env_check and env_delete lists in
sudoers on some platforms.
What's new in Sudo 1.8.4?
* The -D flag in sudo has been replaced with a more general debugging
framework that is configured in sudo.conf.
* Fixed a false positive in visudo strict mode when aliases are
in use.
* Fixed a crash with "sudo -i" when a runas group was specified
without a runas user.
* The line on which a syntax error is reported in the sudoers file
is now more accurate. Previously it was often off by a line.
* Fixed a bug where stack garbage could be printed at the end of
the lecture when the "lecture_file" option was enabled.
* "make install" now honors the LINGUAS environment variable.
* The #include and #includedir directives in sudoers now support
relative paths. If the path is not fully qualified it is expected
to be located in the same directory of the sudoers file that is
including it.
* Serbian and Spanish translations for sudo from translationproject.org.
* LDAP-based sudoers may now access by group ID in addition to
group name.
* visudo will now fix the mode on the sudoers file even if no changes
are made unless the -f option is specified.
* The "use_loginclass" sudoers option works properly again.
* On systems that use login.conf, "sudo -i" now sets environment
variables based on login.conf.
* For LDAP-based sudoers, values in the search expression are now
escaped as per RFC 4515.
* The plugin close function is now properly called when a login
session is killed (as opposed to the actual command being killed).
This can happen when an ssh session is disconnected or the
terminal window is closed.
* The deprecated "noexec_file" sudoers option is no longer supported.
* Fixed a race condition when I/O logging is not enabled that could
result in tty-generated signals (e.g., control-C) being received
by the command twice.
* If none of the standard input, output or error are connected to
a tty device, sudo will now check its parent's standard input,
output or error for the tty name on systems with /proc and BSD
systems that support the KERN_PROC_PID sysctl. This allows
tty-based tickets to work properly even when, e.g., standard
input, output and error are redirected to /dev/null.
* Added the --enable-kerb5-instance configure option to allow
people using Kerberos V authentication to specify a custom
instance so the principal name can be, e.g., "username/sudo"
similar to how ksu uses "username/root".
* Fixed a bug where a pattern like "/usr/*" included /usr/bin/ in
the results, which would be incorrectly be interpreted as if the
sudoers file had specified a directory.
* "visudo -c" will now list any include files that were checked
in addition to the main sudoers file when everything parses OK.
* Users that only have read-only access to the sudoers file may
now run "visudo -c". Previously, write permissions were required
even though no writing is down in check-only mode.
* It is now possible to prevent the disabling of core dumps from
within sudo itself by adding a line to the sudo.conf file like
"Set disable_coredump false".
What's new in Sudo 1.8.3p2?
* Fixed a format string vulnerability when the sudo binary (or a
symbolic link to the sudo binary) contains printf format escapes
and the -D (debugging) flag is used.
What's new in Sudo 1.8.3p1?
* Fixed a crash in the monitor process on Solaris when NOPASSWD
was specified or when authentication was disabled.
* Fixed matching of a Runas_Alias in the group section of a
Runas_Spec.
What's new in Sudo 1.8.3?
* Fixed expansion of strftime() escape sequences in the "log_dir"
sudoers setting.
* Esperanto, Italian and Japanese translations from translationproject.org.
* Sudo will now use PAM by default on AIX 6 and higher.
* Added --enable-werror configure option for gcc's -Werror flag.
* Visudo no longer assumes all editors support the +linenumber
command line argument. It now uses a allowlist of editors known
to support the option.
* Fixed matching of network addresses when a netmask is specified
but the address is not the first one in the CIDR block.
* The configure script now check whether or not errno.h declares
the errno variable. Previously, sudo would always declare errno
itself for older systems that don't declare it in errno.h.
* The NOPASSWD tag is now honored for denied commands too, which
matches historic sudo behavior (prior to sudo 1.7.0).
* Sudo now honors the "DEREF" setting in ldap.conf which controls
how alias dereferencing is done during an LDAP search.
* A symbol conflict with the pam_ssh_agent_auth PAM module that
would cause a crash been resolved.
* The inability to load a group provider plugin is no longer
a fatal error.
* A potential crash in the utmp handling code has been fixed.
* Two PAM session issues have been resolved. In previous versions
of sudo, the PAM session was opened as one user and closed as
another. Additionally, if no authentication was performed, the
PAM session would never be closed.
* Sudo will now work correctly with LDAP-based sudoers using TLS
or SSL on Debian systems.
* The LOGNAME, USER and USERNAME environment variables are preserved
correctly again in sudoedit mode.
What's new in Sudo 1.8.2?
* Sudo, visudo, sudoreplay and the sudoers plug-in now have natural
language support (NLS). This can be disabled by passing configure
the --disable-nls option. Sudo will use gettext(), if available,
to display translated messages. All translations are coordinated
via The Translation Project, https://translationproject.org/.
* Plug-ins are now loaded with the RTLD_GLOBAL flag instead of
RTLD_LOCAL. This fixes missing symbol problems in PAM modules
on certain platforms, such as FreeBSD and SuSE Linux Enterprise.
* I/O logging is now supported for commands run in background mode
(using sudo's -b flag).
* Group ownership of the sudoers file is now only enforced when
the file mode on sudoers allows group readability or writability.
* Visudo now checks the contents of an alias and warns about cycles
when the alias is expanded.
* If the user specifies a group via sudo's -g option that matches
the target user's group in the password database, it is now
allowed even if no groups are present in the Runas_Spec.
* The sudo Makefiles now have more complete dependencies which are
automatically generated instead of being maintained manually.
* The "use_pty" sudoers option is now correctly passed back to the
sudo front end. This was missing in previous versions of sudo
1.8 which prevented "use_pty" from being honored.
* "sudo -i command" now works correctly with the bash version
2.0 and higher. Previously, the .bash_profile would not be
sourced prior to running the command unless bash was built with
NON_INTERACTIVE_LOGIN_SHELLS defined.
* When matching groups in the sudoers file, sudo will now match
based on the name of the group instead of the group ID. This can
substantially reduce the number of group lookups for sudoers
files that contain a large number of groups.
* Multi-factor authentication is now supported on AIX.
* Added support for non-RFC 4517 compliant LDAP servers that require
that seconds be present in a timestamp, such as Tivoli Directory Server.
* If the group vector is to be preserved, the PATH search for the
command is now done with the user's original group vector.
* For LDAP-based sudoers, the "runas_default" sudoOption now works
properly in a sudoRole that contains a sudoCommand.
* Spaces in command line arguments for "sudo -s" and "sudo -i" are
now escaped with a backslash when checking the security policy.
What's new in Sudo 1.8.1p2?
* Two-character CIDR-style IPv4 netmasks are now matched correctly
in the sudoers file.
* A build error with MIT Kerberos V has been resolved.
* A crash on HP-UX in the sudoers plugin when wildcards are
present in the sudoers file has been resolved.
* Sudo now works correctly on Tru64 Unix again.
What's new in Sudo 1.8.1p1?
* Fixed a problem on AIX where sudo was unable to set the final
UID if the PAM module modified the effective UID.
* A non-existent includedir is now treated the same as an empty
directory and not reported as an error.
* Removed extraneous parens in LDAP filter when sudoers_search_filter
is enabled that can cause an LDAP search error.
* Fixed a "make -j" problem for "make install".
What's new in Sudo 1.8.1?
* A new LDAP setting, sudoers_search_filter, has been added to
ldap.conf. This setting can be used to restrict the set of
records returned by the LDAP query. Based on changes from Matthew
Thomas.
* White space is now permitted within a User_List when used in
conjunction with a per-user Defaults definition.
* A group ID (%#GID) may now be specified in a User_List or Runas_List.
Likewise, for non-Unix groups the syntax is %:#GID.
* Support for double-quoted words in the sudoers file has been fixed.
The change in 1.7.5 for escaping the double quote character
caused the double quoting to only be available at the beginning
of an entry.
* The fix for resuming a suspended shell in 1.7.5 caused problems
with resuming non-shells on Linux. Sudo will now save the process
group ID of the program it is running on suspend and restore it
when resuming, which fixes both problems.
* A bug that could result in corrupted output in "sudo -l" has been
fixed.
* Sudo will now create an entry in the utmp (or utmpx) file when
allocating a pseudo-tty (e.g., when logging I/O). The "set_utmp"
and "utmp_runas" sudoers file options can be used to control this.
Other policy plugins may use the "set_utmp" and "utmp_user"
entries in the command_info list.
* The sudoers policy now stores the TSID field in the logs
even when the "iolog_file" sudoers option is defined to a value
other than %{sessid}. Previously, the TSID field was only
included in the log file when the "iolog_file" option was set
to its default value.
* The sudoreplay utility now supports arbitrary session IDs.
Previously, it would only work with the base-36 session IDs
that the sudoers plugin uses by default.
* Sudo now passes "run_shell=true" to the policy plugin in the
settings list when sudo's -s command line option is specified.
The sudoers policy plugin uses this to implement the "set_home"
sudoers option which was missing from sudo 1.8.0.
* The "noexec" functionality has been moved out of the sudoers
policy plugin and into the sudo front-end, which matches the
behavior documented in the plugin writer's guide. As a result,
the path to the noexec file is now specified in the sudo.conf
file instead of the sudoers file.
* On Solaris 10, the PRIV_PROC_EXEC privilege is now used to
implement the "noexec" feature. Previously, this was implemented
via the LD_PRELOAD environment variable.
* The exit values for "sudo -l", "sudo -v" and "sudo -l command"
have been fixed in the sudoers policy plugin.
* The sudoers policy plugin now passes the login class, if any,
back to the sudo front-end.
* The sudoers policy plugin was not being linked with requisite
libraries in certain configurations.
* Sudo now parses command line arguments before loading any plugins.
This allows "sudo -V" or "sudo -h" to work even if there is a problem
with sudo.conf
* Plugins are now linked with the static version of libgcc to allow
the plugin to run on a system where no shared libgcc is installed,
or where it is installed in a different location.
What's new in Sudo 1.8.0?
* Sudo has been refactored to use a modular framework that can
support third-party policy and I/O logging plugins. The default
plugin is "sudoers" which provides the traditional sudo functionality.
See the sudo_plugin manual for details on the plugin API and the
sample in the plugins directory for a simple example.
What's new in Sudo 1.7.5?
* When using visudo in check mode, a file named "-" may be used to
check sudoers data on the standard input.
* Sudo now only fetches shadow password entries when using the
password database directly for authentication.
* Password and group entries are now cached using the same key
that was used to look them up. This fixes a problem when looking
up entries by name if the name in the retrieved entry does not
match the name used to look it up. This may happen on some systems
that do case insensitive lookups or that truncate long names.
* GCC will no longer display warnings on glibc systems that use
the warn_unused_result attribute for write(2) and other system calls.
* If a PAM account management module denies access, sudo now prints
a more useful error message and stops trying to validate the user.
* Fixed a potential hang on idle systems when the sudo-run process
exits immediately.
* Sudo now includes a copy of zlib that will be used on systems
that do not have zlib installed.
* The --with-umask-override configure flag has been added to enable
the "umask_override" sudoers Defaults option at build time.
* Sudo now unblocks all signals on startup to avoid problems caused
by the parent process changing the default signal mask.
* LDAP Sudoers entries may now specify a time period for which
the entry is valid. This requires an updated sudoers schema
that includes the sudoNotBefore and sudoNotAfter attributes.
Support for timed entries must be explicitly enabled in the
ldap.conf file. Based on changes from Andreas Mueller.
* LDAP Sudoers entries may now specify a sudoOrder attribute that
determines the order in which matching entries are applied. The
last matching entry is used, just like file-based sudoers. This
requires an updated sudoers schema that includes the sudoOrder
attribute. Based on changes from Andreas Mueller.
* When run as sudoedit, or when given the -e flag, sudo now treats
command line arguments as pathnames. This means that slashes
in the sudoers file entry must explicitly match slashes in
the command line arguments. As a result, and entry such as:
user ALL = sudoedit /etc/*
will allow editing of /etc/motd but not /etc/security/default.
* NETWORK_TIMEOUT is now an alias for BIND_TIMELIMIT in ldap.conf for
compatibility with OpenLDAP configuration files.
* The LDAP API TIMEOUT parameter is now honored in ldap.conf.
* The I/O log directory may now be specified in the sudoers file.
* Sudo will no longer refuse to run if the sudoers file is writable
by root.
* Sudo now performs command line escaping for "sudo -s" and "sudo -i"
after validating the command so the sudoers entries do not need
to include the backslashes.
* Logging and email sending are now done in the locale specified
by the "sudoers_locale" setting ("C" by default). Email send by
sudo now includes MIME headers when "sudoers_locale" is not "C".
* The configure script has a new option, --disable-env-reset, to
allow one to change the default for the sudoers Default setting
"env_reset" at compile time.
* When logging "sudo -l command", sudo will now prepend "list "
to the command in the log line to distinguish between an
actual command invocation in the logs.
* Double-quoted group and user names may now include escaped double
quotes as part of the name. Previously this was a parse error.
* Sudo once again restores the state of the signal handlers it
modifies before executing the command. This allows sudo to be
used with the nohup command.
* Resuming a suspended shell now works properly when I/O logging
is not enabled (the I/O logging case was already correct).
What's new in Sudo 1.7.4p6?
* A bug has been fixed in the I/O logging support that could cause
visual artifacts in full-screen programs such as text editors.
What's new in Sudo 1.7.4p5?
* A bug has been fixed that would allow a command to be run without the
user entering a password when sudo's -g flag is used without the -u flag.
* If user has no supplementary groups, sudo will now fall back on checking
the group file explicitly, which restores historic sudo behavior.
* A crash has been fixed when sudo's -g flag is used without the -u flag
and the sudoers file contains an entry with no runas user or group listed.
* A crash has been fixed when the Solaris project support is enabled
and sudo's -g flag is used without the -u flag.
* Sudo no longer exits with an error when support for auditing is
compiled in but auditing is not enabled.
* Fixed a bug introduced in sudo 1.7.3 where the ticket file was not
being honored when the "targetpw" sudoers Defaults option was enabled.
* The LOG_INPUT and LOG_OUTPUT tags in sudoers are now parsed correctly.
* A crash has been fixed in "sudo -l" when sudo is built with auditing
support and the user is not allowed to run any commands on the host.
What's new in Sudo 1.7.4p4?
* A potential security issue has been fixed with respect to the handling
of sudo's -g command line option when -u is also specified. The flaw
may allow an attacker to run commands as a user that is not authorized
by the sudoers file.
* A bug has been fixed where "sudo -l" output was incomplete if multiple
sudoers sources were defined in nsswitch.conf and there was an error
querying one of the sources.
* The log_input, log_output, and use_pty sudoers options now work correctly
on AIX. Previously, sudo would hang if they were enabled.
* The "make install" target now works correctly when sudo is built in a
directory other than the source directory.
* The "runas_default" sudoers setting now works properly in a per-command
Defaults line.
* Suspending and resuming the bash shell when PAM is in use now works
correctly. The SIGCONT signal was not propagated to the child process.
What's new in Sudo 1.7.4p3?
* A bug has been fixed where duplicate HOME environment variables could be
present when the env_reset setting was disabled and the always_set_home
setting was enabled in sudoers.
* The value of sysconfdir is now substituted into the path to the sudoers.d
directory in the installed sudoers file.
* Compilation problems on IRIX and other platforms have been fixed.
* If multiple PAM "auth" actions are specified and the user enters ^C at
the password prompt, sudo will no longer prompt for a password for any
subsequent "auth" actions. Previously it was necessary to enter ^C for
each "auth" action.
What's new in Sudo 1.7.4p2?
* A bug where sudo could spin in a busy loop waiting for the child process
has been fixed.
What's new in Sudo 1.7.4p1?
* A bug introduced in sudo 1.7.3 that prevented the -k and -K options from
functioning when the tty_tickets sudoers option is enabled has been fixed.
* Sudo no longer prints a warning when the -k or -K options are specified
and the ticket file does not exist.
* It is now easier to cross-compile sudo.
What's new in Sudo 1.7.4?
* Sudoedit will now preserve the file extension in the name of the
temporary file being edited. The extension is used by some
editors (such as emacs) to choose the editing mode.
* Time stamp files have moved from /var/run/sudo to either /var/db/sudo,
/var/lib/sudo or /var/adm/sudo. The directories are checked for
existence in that order. This prevents users from receiving the
sudo lecture every time the system reboots. Time stamp files older
than the boot time are ignored on systems where it is possible to
determine this.
* The tty_tickets sudoers option is now enabled by default.
* Ancillary documentation (README files, LICENSE, etc) is now installed
in a sudo documentation directory.
* Sudo now recognizes "tls_cacert" as an alias for "tls_cacertfile"
in ldap.conf.
* Defaults settings that are tied to a user, host or command may
now include the negation operator. For example:
Defaults:!millert lecture
will match any user but millert.
* The default PATH environment variable, used when no PATH variable
exists, now includes /usr/sbin and /sbin.
* Sudo now uses polypkg (https://github.com/OneIdentity/Polypkg)
for cross-platform packing.
* On Linux, sudo will now restore the nproc resource limit before
executing a command, unless the limit appears to have been modified
by pam_limits. This avoids a problem with bash scripts that open
more than 32 descriptors on SuSE Linux, where sysconf(_SC_CHILD_MAX)
will return -1 when RLIMIT_NPROC is set to RLIMIT_UNLIMITED (-1).
* The HOME and MAIL environment variables are now reset based on the
target user's password database entry when the env_reset sudoers option
is enabled (which is the case in the default configuration). Users
wishing to preserve the original values should use a sudoers entry like:
Defaults env_keep += HOME
to preserve the old value of HOME and
Defaults env_keep += MAIL
to preserve the old value of MAIL.
* Fixed a problem in the restoration of the AIX authdb registry setting.
* Sudo will now fork(2) and wait until the command has completed before
calling pam_close_session().
* The default syslog facility is now "authpriv" if the operating system
supports it, else "auth".
What's new in Sudo 1.7.3?
* Support for logging I/O for the command being run.
For more information, see the documentation for the "log_input"
and "log_output" Defaults options in the sudoers manual. Also
see the sudoreplay manual for how to replay I/O log sessions.
* The use_pty sudoers option can be used to force a command to be
run in a pseudo-pty, even when I/O logging is not enabled.
* On some systems, sudo can now detect when a user has logged out
and back in again when tty-based time stamps are in use. Supported
systems include Solaris systems with the devices file system,
Mac OS X, and Linux systems with the devpts filesystem (pseudo-ttys
only).
* On AIX systems, the registry setting in /etc/security/user is
now taken into account when looking up users and groups. Sudo
now applies the correct the user and group ids when running a
command as a user whose account details come from a different
source (e.g., LDAP or DCE versus local files).
* Support for multiple 'sudoers_base' and 'uri' entries in ldap.conf.
When multiple entries are listed, sudo will try each one in the
order in which they are specified.
* Sudo's SELinux support should now function correctly when running
commands as a non-root user and when one of stdin, stdout or stderr
is not a terminal.
* Sudo will now use the Linux audit system with configure with
the --with-linux-audit flag.
* Sudo now uses mbr_check_membership() on systems that support it
to determine group membership. Currently, only Darwin (Mac OS X)
supports this.
* When the tty_tickets sudoers option is enabled but there is no
terminal device, sudo will no longer use or create a tty-based
ticket file. Previously, sudo would use a tty name of "unknown".
As a consequence, if a user has no terminal device, sudo will
now always prompt for a password.
* The passwd_timeout and timestamp_timeout options may now be
specified as floating point numbers for more granular timeout
values.
* Negating the fqdn option in sudoers now works correctly when sudo
is configured with the --with-fqdn option. In previous versions
of sudo the fqdn was set before sudoers was parsed.
What's new in Sudo 1.7.2?
* A new #includedir directive is available in sudoers. This can be
used to implement an /etc/sudo.d directory. Files in an includedir
are not edited by visudo unless they contain a syntax error.
* The -g option did not work properly when only setting the group
(and not the user). Also, in -l mode the wrong user was displayed
for sudoers entries where only the group was allowed to be set.
* Fixed a problem with the alias checking in visudo which
could prevent visudo from exiting.
* Sudo will now correctly parse the shell-style /etc/environment
file format used by pam_env on Linux.
* When doing password and group database lookups, sudo will only
cache an entry by name or by id, depending on how the entry was
looked up. Previously, sudo would cache by both name and id
from a single lookup, but this breaks sites that have multiple
password or group database names that map to the same UID or
GID.
* User and group names in sudoers may now be enclosed in double
quotes to avoid having to escape special characters.
* BSM audit fixes when changing to a non-root UID.
* Experimental non-Unix group support. Currently only works with
Quest Authorization Services and allows Active Directory groups
fixes for Minix-3.
* For Netscape/Mozilla-derived LDAP SDKs the certificate and key
paths may be specified as a directory or a file. However, version
5.0 of the SDK only appears to support using a directory (despite
documentation to the contrary). If SSL client initialization
fails and the certificate or key paths look like they could be
default file name, strip off the last path element and try again.
* A setenv() compatibility fix for Linux systems, where a NULL
value is treated the same as an empty string and the variable
name is checked against the NULL pointer.
What's new in Sudo 1.7.1?
* A new Defaults option "pwfeedback" will cause sudo to provide visual
feedback when the user is entering a password.
* A new Defaults option "fast_glob" will cause sudo to use the fnmatch()
function for file name globbing instead of glob(). When this option
is enabled, sudo will not check the file system when expanding wildcards.
This is faster but a side effect is that relative paths with wildcard
will no longer work.
* New BSM audit support for systems that support it such as FreeBSD
and Mac OS X.
* The file name specified with the #include directive may now include
a %h escape which is expanded to the short form of hostname.
* The -k flag may now be specified along with a command, causing the
user's timestamp file to be ignored.
* New support for Tivoli-based LDAP START_TLS, present in AIX.
* New support for /etc/netsvc.conf on AIX.
* The unused alias checks in visudo now handle the case of an alias
referring to another alias.
What's new in Sudo 1.7.0?
* Rewritten parser that converts sudoers into a set of data structures.
This eliminates a number of ordering issues and makes it possible to
apply sudoers Defaults entries before searching for the command.
It also adds support for per-command Defaults specifications.
* Sudoers now supports a #include facility to allow the inclusion of other
sudoers-format files.
* Sudo's -l (list) flag has been enhanced:
o applicable Defaults options are now listed
o a command argument can be specified for testing whether a user
may run a specific command.
o a new -U flag can be used in conjunction with "sudo -l" to allow
root (or a user with "sudo ALL") list another user's privileges.
* A new -g flag has been added to allow the user to specify a
primary group to run the command as. The sudoers syntax has been
extended to include a group section in the Runas specification.
* A UID may now be used anywhere a username is valid.
* The "secure_path" run-time Defaults option has been restored.
* Password and group data is now cached for fast lookups.
* The file descriptor at which sudo starts closing all open files is now
configurable via sudoers and, optionally, the command line.
* Visudo will now warn about aliases that are defined but not used.
* The -i and -s command line flags now take an optional command
to be run via the shell. Previously, the argument was passed
to the shell as a script to run.
* Improved LDAP support. SASL authentication may now be used in
conjunction when connecting to an LDAP server. The krb5_ccname
parameter in ldap.conf may be used to enable Kerberos.
* Support for /etc/nsswitch.conf. LDAP users may now use nsswitch.conf
to specify the sudoers order. E.g.:
sudoers: ldap files
to check LDAP, then /etc/sudoers. The default is "files", even
when LDAP support is compiled in. This differs from sudo 1.6
where LDAP was always consulted first.
* Support for /etc/environment on AIX and Linux. If sudo is run
with the -i flag, the contents of /etc/environment are used to
populate the new environment that is passed to the command being
run.
* If no terminal is available or if the new -A flag is specified,
sudo will use a helper program to read the password if one is
configured. Typically, this is a graphical password prompter
such as ssh-askpass.
* A new Defaults option, "mailfrom" that sets the value of the
"From:" field in the warning/error mail. If unspecified, the
login name of the invoking user is used.
* A new Defaults option, "env_file" that refers to a file containing
environment variables to be set in the command being run.
* A new flag, -n, may be used to indicate that sudo should not
prompt the user for a password and, instead, exit with an error
if authentication is required.
* If sudo needs to prompt for a password and it is unable to disable
echo (and no askpass program is defined), it will refuse to run
unless the "visiblepw" Defaults option has been specified.
* Prior to version 1.7.0, hitting enter/return at the Password: prompt
would exit sudo. In sudo 1.7.0 and beyond, this is treated as
an empty password. To exit sudo, the user must press ^C or ^D
at the prompt.
* visudo will now check the sudoers file owner and mode in -c (check)
mode when the -s (strict) flag is specified.
* A new Defaults option "umask_override" will cause sudo to set the
umask specified in sudoers even if it is more permissive than the
invoking user's umask.
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