The cron.allow file must not have an extended ACL.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22384	GEN002990	SV-37382r1_rule	ECLP-1	Medium

Description
A readable and/or writeable cron.allow file by other users than root could allow potential intruders and malicious users to use the file contents to help discern information, such as who is allowed to execute cron programs, which could be harmful to overall system and network security.

STIG	Date
Red Hat Enterprise Linux 5 Security Technical Implementation Guide	2017-03-01

Details

Check Text ( C-36069r1_chk )
Check the permissions of the cron.allow file. # ls -l /etc/cron.allow If the permissions include a '+', the file has an extended ACL. If the file has an extended ACL and it has not been documented with the IAO, this is a finding.

Fix Text (F-31313r1_fix)
Remove the extended ACL from the file. # setfacl --remove-all /etc/cron.allow