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3229 Commits

Author SHA1 Message Date
Todd C. Miller
f279df5e18 Add basic support for setting resource limits in sudoers. 
The default for rlimit_core is "0,0"
Resource limits are passed back to the front-end in command_info[]
when set.
 2021-11-08 17:46:19 -07:00
Todd C. Miller
cdd41af66f visudo: add -O and -P options to check/set 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
 2021-11-06 12:37:13 -06:00
Todd C. Miller
a336a8422f Pass status of selinux sudoers setting to front-end as selinux-rbac. 
The front-end uses this to decide whether or not to enable SELinux.
If selinux-rbac is true _or_ if it is not present and selinux_role or
selinux_type are set, SELinux support is enabled.
Previously, SELinux support was only enabled if a role was specified.
 2021-11-05 12:32:02 -06:00
Todd C. Miller
4eebd53bce parse_gentime: use timegm() to generate time since the epoch 
The timegm() function is non-standard but widely available.
Provide an implementation for those systems that lack it.
Bug #1006
 2021-10-31 09:27:34 -06:00
Todd C. Miller
dcd2199f79 Take daylight saving time into consideration when computing offset. 
Otherwise, the resulting time may be off by and hour, depending on
whether DST is currently active compared to the target time.
 2021-10-31 08:42:49 -06:00
Todd C. Miller
cc6157d7d4 Add support for WolfSSL's OpenSSL compatibility layer. 
Based on changes from Hayden Roche
 2021-10-25 13:17:57 -06:00
Todd C. Miller
465bfbba72 regenerate dependencies 2021-10-25 12:32:02 -06:00
Todd C. Miller
88c577171e Make sure INET_ADDRSTRLEN and INET6_ADDRSTRLEN are defined. 2021-10-21 19:53:48 -06:00
Todd C. Miller
00f0c233b2 Only include log_client.h if SUDOERS_LOG_CLIENT is defined. 2021-10-21 19:46:35 -06:00
Todd C. Miller
23eef895f4 Add an explicit check for sys/sysctl.h. 
This test needs to be done after AC_LANG_WERROR to avoid including
sys/sysctl.h on systems where it is marked as deprecated via a
#warning directive.
 2021-10-20 10:31:35 -06:00
Todd C. Miller
bddf03fe45 No longer need to pass exit params to eventlog_exit(), use struct eventlog. 
Now that struct eventlog includes the exit parameters we can simplify
how eventlog_exit() is called.
 2021-10-19 08:58:34 -06:00
Todd C. Miller
369d21323b Display a more helpful message if the user tries to run "sudo cd". 
Since "cd" is a shell built-in command it cannot be run directly
via sudo.  The user either needs to spawn a shell via "sudo -s"
or use the -D option to run a command in a specific directory.
 2021-10-11 11:05:58 -06:00
Todd C. Miller
4b7b3c05e9 Fix typos in SELinux and Solaris priv support. 2021-10-10 16:06:01 -06:00
Todd C. Miller
430048d167 cvtsudoers: initial support for CSV output 
For CSV output we double quotes strings that contain commas.  For
each literal double quote character present inside the string, two
double quotes are output.
 2021-10-10 14:24:31 -06:00
Todd C. Miller
de5ca187b8 regenerate dependencies 2021-10-10 14:23:13 -06:00
Todd C. Miller
eaee7a0ebe Fix fuzzer build with when --enable-static-sudoers is used. 
This introduces a sudoers-specific version of LT_STATIC instead of
appending the --tag=disable-shared to SUDOERS_LDFLAGS.
I've also removed the -static flag as it should not be needed.
 2021-10-07 08:19:11 -06:00
Todd C. Miller
4e4b506f22 Sync "sudo -l" output with normal sudo log format. 
It now prints runchroot and runcwd (falling back on cwd).
As a result, submithost is now printed first, matching sudo.
Also avoid printing NULL pointers and skip entries that don't have
at least command, submituser and runuser set.
 2021-10-01 10:33:55 -06:00
Todd C. Miller
d15e117c2e find_editor: remove the env_error argument 
There is no case where we should fail to find an editor just because
the values of EDITOR, VISUAL and SUDO_EDITOR are unavailable.  Both
sudoedit and the "env_editor" sudoers setting are documented as
falling back on the hard-coded list of editors in the "editors"
sudoers setting.  Bug #1000
 2021-09-29 10:25:19 -06:00
Todd C. Miller
dde951a098 Use sudo_printf(SUDO_CONV_ERROR_MSG) instead of fprintf(stderr). 
Avoids extraneous output in the fuzzer.
 2021-09-29 09:15:24 -06:00
Todd C. Miller
2aa6cb13a5 Stub out sudo_printf() and avoid other use of stderr in fuzzers. 
This makes it possible to parse sudoers without using quiet mode,
resulting in better coverage.
 2021-09-29 09:03:24 -06:00
Todd C. Miller
eefb7b0d54 Use a consistent version of fuzz_conversation() with all fuzzers. 
Also undo a change to fuzz_sudoers.c that snuck in to the last commit.
 2021-09-28 20:20:28 -06:00
Todd C. Miller
7d964875df Fuzzers should not produce output. 
Excessive output makes the fuzzer runs much less efficient.
 2021-09-28 18:53:49 -06:00
Todd C. Miller
1d203c8344 Fix typo in last commit, use boolean AND not bitwise. 2021-09-24 10:57:12 -06:00
Todd C. Miller
1831176a1a Add the ability to filter/match by command via the -m option. 
For example "cvtsudoers -m cmd=/bin/ls" would only display entries
that would allow /bin/ls to be allowed or denied.
 2021-09-24 10:44:13 -06:00
Todd C. Miller
41f116050f Add --group-file and --passwd-file options to cvtsudoers. 
These are based on the code in testsudoers.
 2021-09-23 19:18:25 -06:00
Todd C. Miller
86df86ed94 Fix memory leak on error path if snprintf() overflows. 
Coverity CID 188804
 2021-09-22 11:17:55 -06:00
Todd C. Miller
b9b8451830 Avoid reinitializing other auth methods. 2021-09-21 20:05:35 -06:00
Todd C. Miller
4a49f16967 expand_include: add bounds checking when expanding %h escape. 2021-09-21 19:33:51 -06:00
Todd C. Miller
dc90df8de5 Check snprintf() return values even if we preallocated the correct amount. 
There are no remaining unchecked snprintf() that can actually overflow.
 2021-09-21 19:13:35 -06:00
Todd C. Miller
0f2252f898 Amend truncation fix, the real problem was the size passed to snprintf(). 
sudo_rcstr_alloc() takes a length (not a size) parameter so when
calling snprintf() we need to add one to the length.
 2021-09-21 19:01:22 -06:00
Todd C. Miller
e23874d0fa Fix truncation of the last char of the sudoRole cn passed to append_default(). 
This string is primarily used for warning messages.
Also check the snprintf() return value to avoid silent truncation.
GitHub issue #115
 2021-09-21 12:49:18 -06:00
Todd C. Miller
b6561831b4 Re-enable error output for the sudoers parser. 
It is only the alias and defaults warnings we need to suppress.
 2021-09-20 12:46:37 -06:00
Todd C. Miller
328bc282e0 Don't re-initialize PAM for sub-commands. 2021-09-20 08:14:28 -06:00
Todd C. Miller
0eb677b74a Only store the first log id received from the server. 
Plugs a small memory leak in intercept mode if the log server sends
the log ID again for sub-commands.
 2021-09-20 07:49:31 -06:00
Todd C. Miller
77ef8baa97 fuzz_sudoers: don't warn about unknown defaults entries 
Some fuzzing inputs cause a huge number of warnings and displaying
them all can result in the fuzz run timing out.  If we disable the
warnings we can avoid the timeout.
 2021-09-19 19:36:25 -06:00
Todd C. Miller
0ea561ca6a Limit paths for command, cwd and chroot to PATH_MAX bytes. 
This helps prevent the fuzzer from going off the rails.
 2021-09-19 18:13:43 -06:00
Todd C. Miller
7ab66eb3a8 sudo -i: missing NULL terminator when moving argv to make room for --login 
Fixes a potential crash for "sudo -i" when the target user has bash
as the shell (which needs the --login option).  Bug #998.
 2021-09-19 13:58:56 -06:00
Todd C. Miller
613468e4d2 Only warn about an undefined alias or a cycle a single time. 
There's no point in warning about the same problem multiple times.
This implementation assumes a small number of warnings and so just
uses a simple listed link.
 2021-09-18 13:41:51 -06:00
Todd C. Miller
d9e8c852ba Quiet pvs-studio false positive: V557 Array overrun is possible. 
Make the zero length check explicit so as not to confuse static
(or human) analyzers.
 2021-09-18 09:51:32 -06:00
Todd C. Miller
292916f43c Test that digest matching works with LDAP sudoCommand: ALL 2021-09-17 20:41:34 -06:00
Todd C. Miller
702746f96b Allow a digest to be specified with the "ALL" command for ldap/sssd back-ends. 
This has been possible with sudoers file entries since sudo 1.9.0
but no corresponding change was made for ldap/sssd.
 2021-09-17 15:29:00 -06:00
Todd C. Miller
55171df5e5 Check strftime(3) return value in all cases. 
Old versions of strftime(3) didn't guarantee to NUL-terminate the buffer
so we explicitly clear the last byte of the buffer and check it.
 2021-09-17 14:01:28 -06:00
Todd C. Miller
18f1884ddc Use gmtime_r() and localtime_r() instead of gmtime() and localtime(). 2021-09-17 10:55:06 -06:00
Todd C. Miller
ecc3aeffc6 Some POSIX yacc fixes for bison 3.8 
yyerror() must be extern void
declare tokens with type instead of using separate %type lines
 2021-09-13 09:33:07 -06:00
Todd C. Miller
cf225d2f10 Add a test to exercise Bug #994 2021-09-17 09:10:27 -06:00
Todd C. Miller
0c30976ae6 Always allocate a struct sudo_command for the command, even for ALL. 
This was missed in the previous set of changes, resulting in a crash
for LDAP and SSSD rules that give sudo "ALL" privileges.
Bug #994.
 2021-09-16 11:24:26 -06:00
Todd C. Miller
31e4a0a0a6 Add SUDOERS_LDFLAGS to FUZZ_LDFLAGS 
Fixes a fuzzer link error when building with ldap if the ldap libs
are not in the default library search path.
 2021-09-16 11:01:07 -06:00
Todd C. Miller
d7cdf1e47c append_defaults() should not be passed a value for boolean flags. 
The operation should simply be set to true/false.
Also treat a NULL file as coming from the front-end.
Bug #993.
 2021-09-14 08:02:37 -06:00
Todd C. Miller
197d4ced38 regen 2021-09-08 17:24:50 -06:00
Todd C. Miller
bf60451845 Remove conditional include of alloca.h, we don't define HAVE_ALLOCA_H. 
The configure check for alloca() was removed long ago but this got
missed.
 2021-09-03 16:03:48 -06:00