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Crontabs must be owned by root or the crontab creator.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-11994 | GEN003040 | SV-64401r1_rule | Medium |
| Description |
|---|
| To protect the integrity of scheduled system jobs and prevent malicious modification to these jobs, crontab files must be secured. |
| STIG | Date |
|---|---|
| Oracle Linux 5 Security Technical Implementation Guide | 2018-03-01 |
Details
| Check Text ( C-52801r1_chk ) |
|---|
| List all crontabs on the system. # ls -lL /var/spool/cron # ls -lL /etc/cron.d /etc/crontab /etc/cron.daily /etc/cron.hourly /etc/cron.monthly /etc/cron.weekly or # ls -lL /etc/cron*|grep -v deny If any crontab is not owned by root or the creating user, this is a finding. |
| Fix Text (F-54983r2_fix) |
|---|
| Change the crontab owner to root or the crontab creator. # chown root or # chown |