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Don't prompt for a password if the user is in the exempt group, is

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root, or is running the command as themselves even if the -k option
was specified.  This makes "sudo -k command" consistent with the
behavior one would get if the user ran "sudo -k" immediately before
running the command.
This commit is contained in:
Todd C. Miller
2012-05-17 10:20:14 -04:00
parent 025a309025
commit 2b7659f709
1 changed files with 11 additions and 17 deletions
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28
plugins/sudoers/check.c
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@@ -104,7 +104,6 @@ check_user(int validated, int mode)
char *prompt;
struct stat sb;
int status, rval = true;
bool need_pass = def_authenticate;
debug_decl(check_user, SUDO_DEBUG_AUTH)
/*
@@ -117,24 +116,19 @@ check_user(int validated, int mode)
goto done;
}
if (need_pass) {
/* Always need a password when -k was specified with the command. */
if (ISSET(mode, MODE_IGNORE_TICKET)) {
SET(validated, FLAG_CHECK_USER);
} else {
/*
* Don't prompt for the root passwd or if the user is exempt.
* If the user is not changing uid/gid, no need for a password.
*/
if (user_uid == 0 || (user_uid == runas_pw->pw_uid &&
(!runas_gr || user_in_group(sudo_user.pw, runas_gr->gr_name)))
|| user_is_exempt())
need_pass = false;
}
}
if (!need_pass)
/*
* Don't prompt for the root passwd or if the user is exempt.
* If the user is not changing uid/gid, no need for a password.
*/
if (!def_authenticate || user_uid == 0 || (user_uid == runas_pw->pw_uid &&
(!runas_gr || user_in_group(sudo_user.pw, runas_gr->gr_name)))
|| user_is_exempt())
goto done;
/* Always need a password when -k was specified with the command. */
if (ISSET(mode, MODE_IGNORE_TICKET))
SET(validated, FLAG_CHECK_USER);
/* Stash the tty's ctime for tty ticket comparison. */
if (def_tty_tickets && user_ttypath && stat(user_ttypath, &sb) == 0) {
tty_info.dev = sb.st_dev;