The cron log files must not have extended ACLs.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22388	GEN003190	SV-37477r2_rule		Medium

Description
Cron logs contain reports of scheduled system activities and must be protected from unauthorized access or manipulation.

STIG	Date
Red Hat Enterprise Linux 5 Security Technical Implementation Guide	2016-12-16

Details

Check Text ( C-36144r2_chk )
Check the permissions of the file. Procedure: Depending on what system is used for log processing either /etc/syslog.conf or /etc/rsyslog.conf will be the logging configuration file. Check the configured cron log file found in the cron entry in /etc/syslog.conf or /etc/rsyslog.conf(normally /var/log/cron). # grep cron /etc/syslog.conf Or: # grep cron /etc/rsyslog.conf # ls -lL /var/log/cron 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.

Check Text ( C-36144r2_chk )

Check the permissions of the file.

Procedure:
Depending on what system is used for log processing either /etc/syslog.conf or /etc/rsyslog.conf will be the logging configuration file. Check the configured cron log file found in the cron entry in /etc/syslog.conf or /etc/rsyslog.conf(normally /var/log/cron).
# grep cron /etc/syslog.conf
Or:
# grep cron /etc/rsyslog.conf

# ls -lL /var/log/cron

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-31390r1_fix)
Remove the extended ACL from the file. # setfacl --remove-all /var/log/cron