Check: GEN003040

AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE: GEN003040 (in versions v1 r14 through v1 r10)

Crontabs must be owned by root or the crontab creator. (Cat II impact)

To protect the integrity of scheduled system jobs and prevent malicious modification to these jobs, crontab files must be secured.

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.

Change the crontab owner to root or the crontab creator. # chown root <crontab file>

Rule ID: SV-27333r1_rule

Vulnerability ID: V-11994

Group Title: GEN003040

Expert comments are only available to logged-in users.

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 tied to check. These are derived from the CCIs shown above.

Number	Title
AC-6	Least Privilege