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Cron and crontab directories must not have extended ACLs.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22387 | GEN003110 | SV-39103r1_rule | ECLP-1 | Medium |
| Description |
|---|
| To protect the integrity of scheduled system jobs and to prevent malicious modification to these jobs, crontab files must be secured. ACLs on cron and crontab directories may provide unauthorized access to these directories. Unauthorized modifications to these directories or their contents may result in the addition of unauthorized cron jobs or deny service to authorized cron jobs. |
| STIG | Date |
|---|---|
| AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE | 2017-12-08 |
Details
| Check Text ( C-38094r1_chk ) |
|---|
| Check the permissions of the crontab directories. # ls -lL /var/spool/cron/crontabs # aclget < crontab > # aclget /var/spool/cron Check if extended permissions are disabled. If extended permissions are not disabled, this is a finding. |
| Fix Text (F-33356r1_fix) |
|---|
| Remove the extended ACL from the crontab file(s) and disable extended permissions. #acledit |