The cron.allow file must be group-owned by system, bin, sys, or cron.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22391	GEN003250	SV-39346r1_rule	ECLP-1	Medium

Description
If the group of the cron.allow is not set to system, bin, sys, or cron, the possibility exists for an unauthorized user to view or edit the list of users permitted to use cron. Unauthorized modification of this file could cause Denial of Service to authorized cron users or provide unauthorized users with the ability to run cron jobs.

STIG	Date
AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE	2018-09-18

Details

Check Text ( C-38292r1_chk )
Determine the group owner of the cron.allow file. Procedure: # ls -lL /var/adm/cron/cron.allow If the group owner is not bin, sys, system, or cron, this is a finding.

Fix Text (F-33580r1_fix)
Change the group owner of the cron.allow file to bin, sys, system, or cron. Procedure: # chgrp cron /var/adm/cron/cron.allow