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Code Issues Releases Wiki Activity

Display a more helpful message if the user tries to run "sudo cd".

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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.
This commit is contained in:
Todd C. Miller
2021-10-11 11:05:58 -06:00
parent 64e5798318
commit 369d21323b
1 changed files with 9 additions and 0 deletions
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9
plugins/sudoers/sudoers.c
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@@ -633,6 +633,15 @@ sudoers_policy_main(int argc, char * const argv[], int pwflag, char *env_add[],
audit_failure(NewArgv, N_("%s: command not found"),
user_cmnd);
sudo_warnx(U_("%s: command not found"), user_cmnd);
if (strncmp(user_cmnd, "cd", 2) == 0 && (user_cmnd[2] == '\0' ||
isblank((unsigned char)user_cmnd[2]))) {
sudo_warnx("%s",
U_("\"cd\" is a shell built-in command, it cannot be run directly."));
sudo_warnx("%s",
U_("the -s option may be used to run a privileged shell."));
sudo_warnx("%s",
U_("the -D option may be used to run a command in a specific directory."));
}
}
goto bad;
}