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V-787

CAT II (Medium)

System log files must have mode 0640 or less permissive.

Rule ID

SV-44946r1_rule

STIG

SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide

Version

V1R12

CCIs

CCI-001314

Discussion

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

Check Content

Check the mode of log files.

Procedure:
# ls -lL /var/log /var/log/syslog /var/adm

With the exception of /var/log/wtmp, if any of the log files have modes more permissive than 0640, this is a finding.

Fix Text

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.