Title

AIX default system accounts (with the exception of root) must not be listed in the cron.allow file or must be included in the cron.deny file, if cron.allow does not exist. (Cat II impact)

Discussion

To centralize the management of privileged account crontabs, of the default system accounts, only root may have a crontab.

Check Content

Check the "cron.allow" and "cron.deny" files for the system using commands: # more /var/adm/cron/cron.allow # more /var/adm/cron/cron.deny If the "cron.allow" file exists and is empty, this is a finding. If a default system account (such as bin, sys, adm, or lpd) is listed in the "cron.allow" file, or not listed in the "cron.deny" file, this is a finding.

Fix Text

Remove default system accounts (such as bin, sys, adm, or lpd) from the "cron.allow" file, or add those accounts to the "cron.deny" file.

Additional Identifiers

Rule ID: SV-215192r991589_rule

Vulnerability ID: V-215192

Group Title: SRG-OS-000480-GPOS-00227

Expert Comments

CCIs tied to check.

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