System log files must have mode 0640 or less permissive.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-787	GEN001260	SV-787r2_rule	ECTP-1	Medium

Description
If the system log files are not protected, unauthorized users could change the logged data, eliminating its forensic value.

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

Details

Check Text ( C-292r2_chk )
Check the mode of log files. Procedure: # ls -lL /var/log /var/log/syslog /var/adm If any of the log files have modes more permissive than 0640, this is a finding.

Fix Text (F-941r3_fix)
Change the mode of the system log file(s) to 0640 or less permissive. Procedure: # chmod "0640" /path/to/system-log-file NOTE: Do not confuse system log files with audit logs. Any subsystems that require less stringent permissions must be documented.