Crontab files must have mode 0600 or less permissive.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-978	GEN003080	SV-45600r2_rule		Medium

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

STIG	Date
SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide	2018-09-19

Details

Check Text ( C-42966r1_chk )
Check the mode of the crontab files. # ls -lL /etc/crontab /var/spool/cron/ /var/spool/cron/tabs/ If any crontab file has a mode more permissive than 0600, this is a finding.

Fix Text (F-38998r1_fix)
Change the mode of the crontab files. # chmod 0600 /var/spool/cron/* /etc/cron.d/* /etc/crontab # chmod 0600 /etc/crontab /var/spool/cron/* /var/spool/cron/tabs/*