Check: GEN003040
Title
Crontabs must be owned by root or the crontab creator. (Cat II impact)
Discussion
To protect the integrity of scheduled system jobs and prevent malicious modification to these jobs, crontab files must be secured.
Check Content
List all crontabs on the system. # ls -lL /var/spool/cron/crontabs/ If any crontab is not owned by root or the creating user, this is a finding.
Fix Text
Change the crontab owner to root or the crontab creator. # chown root <crontab file>
Additional Identifiers
Rule ID:
Vulnerability ID: V-11994
Group Title:
Expert Comments
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CCIs
CCIs tied to check.
| Number | Definition |
|---|---|
| CCI-000225 |
The organization employs the concept of least privilege, allowing only authorized accesses for users (and processes acting on behalf of users) which are necessary to accomplish assigned tasks in accordance with organizational missions and business functions. |
Controls
Controls tied to check. These are derived from the CCIs shown above.
| Number | Title |
|---|---|
| AC-6 |
Least Privilege |