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Crontab files must be group-owned by wheel, cron, or the crontab creator's primary group.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22385 | GEN003050 M6 | SV-38107r1_rule | ECLP-1 | Medium |
| Description |
|---|
| To protect the integrity of scheduled system jobs and prevent malicious modification to these jobs, crontab files must be secured. |
| STIG | Date |
|---|---|
| MAC OSX 10.6 Workstation Security Technical Implementation Guide Draft | 2013-01-10 |
Details
| Check Text ( C-37680r1_chk ) |
|---|
| Open a terminal session and enter the following commands to verify the group ownership of the "crontab" files. ls -lL /usr/sbin/cron ls -lL /usr/lib/cron ls -lL /usr/bin/crontab ls -lL /private/var/at/cron.deny If the group-owner is not wheel or the crontab owner's primary group, this is a finding. |
| Fix Text (F-32920r1_fix) |
|---|
| Open a terminal session and enter the following command to set the group to wheel. chgrp wheel |