The AIX /var/spool/cron/atjobs directory must be group-owned by cron.

Unauthorized group ownership of the /var/spool/cron/atjobs directory could permit unauthorized users the ability to alter atjobs and run automated jobs as privileged users. Failure to set proper permissions of the /var/spool/cron/atjobs directory provides unauthorized users with the potential to access sensitive information or change the system configuration which could weaken the system's security posture.

Check the group ownership of the /var/spool/cron/atjobs directory using command: # ls -ld /var/spool/cron/atjobs

The above command should yield the following output: drw-r----- 1 bin cron 993 Mar 11 07:04 /var/spool/cron/atjobs

If the group owner of the "atjobs" directory is not "cron", this is a finding.

Change the group ownership of the "atjobs" directory to cron using command: # chgrp cron /var/spool/cron/atjobs