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6ee731caffec4b33df16f3999b424cfa0c8c9cd6
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363 Commits

Author SHA1 Message Date
Todd C. Miller
6ee731caff Log when user-specified command line options are rejected by sudoers. 
We already audit those but in some cases they were not logged as well.
 2020-09-23 08:02:43 -06:00
Todd C. Miller
6f8e1b9741 Fix potential NULL deref in debug code. 2020-09-23 08:59:18 -06:00
Todd C. Miller
c200e71637 Add callback for runchroot Defaults and require password -D/-R checks. 
Using a command-based Default for runchroot will still only work for
paths that exist both in and outside the chroot.
 2020-09-09 19:18:24 -06:00
Todd C. Miller
10d3d69aa1 Pass a struct to the match functions to track the resolved command. 
This makes it possible to update user_cmnd and cmnd_status modified
by per-rule CHROOT settings.
 2020-09-09 15:26:45 -06:00
Todd C. Miller
b6dbfe5094 Take the chroot into account when search for the command. 
This could a a user-specific chroot via the -R option, a runchroot
Defaults value, or a per-command CHROOT spec in the sudoers rule.
 2020-09-09 15:26:44 -06:00
Todd C. Miller
226307591c Log the runcwd not submitcwd in the sudo-style log file. 
The log entry should reflect the working directory the command
actually ran in.
 2020-09-02 11:23:26 -06:00
Todd C. Miller
1676f0ceeb Support "*" for CWD/CHROOT to allow user to specify cwd or chroot. 
Adds two new command line options, -D (--chdir) and -R (--chroot)
that can only be used when sudoers sets runcwd or runchroot to "*".
 2020-09-01 14:10:02 -06:00
Todd C. Miller
961a4afe67 Fix some warnings from pvs-studio 2020-08-12 13:45:09 -06:00
Todd C. Miller
cbad17a994 Move inclusion of compat headers up with the system headers. 
Now that sudo_dso_public is defined in config.h we don't need sudo_compat.h
before including the compat headers.
 2020-08-12 10:07:07 -06:00
Todd C. Miller
852d8c7953 Fix a typo in the audit string when "sudo -E" is not allowed. 2020-06-07 08:37:32 -06:00
Todd C. Miller
b519481912 Defer logging of the successful command until approval plugins have run. 
This adds audit plugin support to the sudoers module, currently
only used for accept events.  As a result, the sudoers file is now
initially parsed as an audit plugin.
 2020-06-02 09:07:46 -06:00
Todd C. Miller
446ae3f507 Include string.h unconditionally and only use strings.h for strn?casecmp() 
In the pre-POSIX days BSD had strings.h, not string.h.
Now strings.h is only used for non-ANSI string functions.
 2020-05-18 07:59:24 -06:00
Todd C. Miller
dd88460800 We no longer need to include headers we don't use for sudo*.h files. 
Previously we needed to include headers required by the various
sudo*h files.  Now those files are more self-sufficient and we
should only include headers needed by code in the various .c files.
 2020-05-18 06:47:04 -06:00
Todd C. Miller
5635c22f6b Add --disable-log-server and --disable-log-client configure options. 
These can be used to optionally disable building sudo_logsrvd and
support for remote I/O logging in the sudoers plugin respectively.
 2020-02-26 13:17:40 -07:00
Todd C. Miller
f6a264e719 Avoid calling sudoers_policy_exec_setup() on error. 
We only want to pass the execution environment back for commands
that are accepted or rejected.
Also avoid potentially freeing the wrong pointer when garbage
collection is enabled.
 2020-02-24 19:59:44 -07:00
Todd C. Miller
45e589d443 Pass back a failure or error string to the front end. 
The audit_failure() function now stores the failure string.
This will allow an audit plugin to log the reason if the user's
request is a rejected.
 2020-01-30 13:25:36 -07:00
Todd C. Miller
604945f93e Fix warning about unresolved host name with "sudo -l -h hostname". 
The resolve_host() function returns 0 on success, not bool.
 2020-01-28 13:00:54 -07:00
Todd C. Miller
486ee2b71f debug_decl and debug_decl_vars now require a semicolon at the end. 2019-12-22 08:48:16 -07:00
Todd C. Miller
4392b5726e Output the name of the limit when warning about setrlimit or getrlimit. 
From Kimmo Suominen.
 2019-12-18 09:42:14 -07:00
Todd C. Miller
b14d633ec6 Add runas_check_shell flag to require a runas user to have a valid shell. 
Not enabled by default.
 2019-12-09 19:29:45 -07:00
Todd C. Miller
df8f06609c Add a new flag "allow_unknown_runas_id" to control matching of unknown IDs. 
Previous, sudo would always allow unknown user or group IDs if the
sudoers entry permitted it.  This included the "ALL" alias.
With this change, the admin must explicitly enable support for unknown IDs.
 2019-12-09 17:14:06 -07:00
Todd C. Miller
d10220162d Don't touch the local iolog sequence file if we are logging remotely 2019-11-18 13:51:52 -07:00
Todd C. Miller
635445d471 Transparently handle the "sudo sudoedit" problem. 
Some admin are confused about how to give users sudoedit permission
and many users try to run sudoedit via sudo instead of directly.
If the user runs "sudo sudoedit" sudo will now treat it as plain
"sudoedit" after issuing a warning.  If the admin has specified a
fully-qualified path for sudoedit in sudoers, sudo will treat it
as just "sudoedit" and match accordingly.  In visudo (but not sudo),
a fully-qualified path for sudoedit is now treated as an error.
 2019-11-05 15:18:34 -07:00
Todd C. Miller
ee91b7360b Simplify expand_iolog_path() 2019-10-24 20:04:33 -06:00
Todd C. Miller
7ba7c5835e Enable sudo_logsrvd.conf settings. 2019-10-24 20:04:31 -06:00
Todd C. Miller
059b55ce72 Refactor code in sudoers that creates I/O log files to share with logsrvd. 2019-10-24 20:04:31 -06:00
Todd C. Miller
40bf4081be Rename sudo_strtoid() to sudo_strtoidx() and add simplified sudo_strtoid() 2019-10-20 10:21:29 -06:00
Todd C. Miller
b02851dcf3 Change how the umask is handled with PAM and login.conf. 
If the umask is explicitly set in sudoers, use that value regardless
of what is in PAM or login.conf.  If using the default umask from
sudoers, allow PAM or login.conf to override it.  Bug #900
 2019-10-18 06:20:27 -06:00
Todd C. Miller
c49760e55d Simpler change to retry sudo_secure_file() as root as needed. 2019-07-14 19:37:33 -06:00
Todd C. Miller
cecf69ff3c If we are unable to stat() sudoers as non-root, try again as root. 
By default, sudo relies soley on group permissions to read sudoers
to make it possible to store sudoers on NFS.  However, if /etc/sudoers
is not accessible to non-root uids for some reason, sudo will fail.
Bug #880.
 2019-07-14 18:51:50 -06:00
Todd C. Miller
9d8f374397 Add ssizeof macro that returns ssize_t. 
We can use this instead of casting the result of size_t to int.
Also change checks for snprintf() returning <=0 to <0.
 2019-06-25 09:45:10 -06:00
Todd C. Miller
29223d7f64 In tty_present(), check for /dev/tty if sudo was unable to get the tty name. 
For requiretty it is enough to check that /dev/tty is available.
If sudo can't get the tty from the kernel (missing /proc?) that is OK.
 2019-06-19 20:32:22 -06:00
Todd C. Miller
1e1ef61902 Add SPDX-License-Identifier to files. 2019-04-29 07:21:51 -06:00
Todd C. Miller
f3344b5881 Fix pasto; the unrestricted env file was read when we want the restricted one. 2019-02-19 11:03:02 -07:00
Todd C. Miller
985600e7f0 Minor snprintf() usage tweaks: 
1) don't assume snprintf() returns -1 on error, check for <0
2) when comparing return value of sizeof(foo), cast the sizeof, not the len
3) cast return value to void in cases where snprintf cannot fail
 2019-01-20 07:49:48 -07:00
Todd C. Miller
efe35e5b1e Use debug_return_int not debug_return_bool in resolve_host 2018-12-24 20:31:26 -07:00
Todd C. Miller
cdd5bb32eb Add sudo_gai_fatal, sudo_gai_vfatal, sudo_gai_vwarn, sudo_gai_warn 
and gai_log_warning that use gai_strerror() instead of strerror().
 2018-11-05 09:08:05 -07:00
Todd C. Miller
6c3d20cb41 Convert PVS-Studio comment to ANSI C. 2018-10-26 08:39:09 -06:00
Todd C. Miller
64e5d34c57 Add comments in .c files so PVS-Studio will check them. 2018-10-21 08:46:05 -06:00
Todd C. Miller
25a58ba1ca Avoid potentially undefined behavior. 
Found by PVS Studio.
 2018-10-16 12:50:43 -06:00
Todd C. Miller
1e5af35564 Refactor code to convert defaults to tags and do conversion on 
output for "sudo -l".

Remove the short_list (was long_list) global in favor of a verbose
argument.
 2018-08-05 07:17:34 -06:00
Todd C. Miller
608574a219 For ldap/sssd, include defaults in the generate privilege unless 
we are listing in short mode (in which case we convert them to tags
if possible).  Fixes a problem where sudoOptions were not being
applied to the command.
 2018-08-02 14:45:00 -06:00
Todd C. Miller
171686c422 update_defaults() needs to be able to take a defaults_list for 
the ldap/sssd backends which support per-role defaults.
 2018-08-02 14:06:36 -06:00
Todd C. Miller
70d519c8ad o Move userspecs, defaults and aliases into a new struct sudoers_parse_tree. 
o The parse tree is now passed to the alias, match and defaults functions.
o The nss API has been changed so that the nss parse() function returns
  a pointer to a struct sudoers_parse_tree which will be filled in
  by the getdefs() and query() functions.
 2018-07-26 15:12:33 -06:00
Todd C. Miller
899aedfd10 Return an empty defaults list, not NULL if there is no global sudoers 
defaults entry in sss.
 2018-05-29 10:24:57 -06:00
Todd C. Miller
0b31f186cd Move cached userspecs and defaults into the handle object. 2018-05-29 09:39:40 -06:00
Todd C. Miller
f9be3a48a2 Simplify the nss interface such that each sudoers provider fills 
in a per-nss list of userspecs and defaults instead of using separate
lookup and list functions.  This makes it possible to have a single
implementation of the code for sudoers lookup and listing.
 2018-05-14 09:05:03 -06:00
Todd C. Miller
217e0a9b4b Less confusing sysctl checks for kinfo_proc. 2018-03-05 17:35:02 -07:00
Todd C. Miller
23ac62cfb5 Also honor SUDO_EDITOR in visudo. Previously is was only used 
by sudoedit.
 2017-12-22 10:22:33 -07:00
Todd C. Miller
fa2ab63da9 Stop looking for an editor as soon as we find one. 
A similar fix was made to visudo some time ago.
 2017-12-21 16:31:42 -07:00