All rsyslog-generated log files must be group-owned by root.

From Oracle Linux 6 Security Technical Implementation Guide

Associated with: CCI-001314

SV-65215r2_rule All rsyslog-generated log files must be group-owned by root.

Vulnerability discussion

The log files generated by rsyslog contain valuable information regarding system configuration, user authentication, and other such information. Log files should be protected from unauthorized access.

Check content

The group-owner of all log files written by "rsyslog" should be root. These log files are determined by the second part of each Rule line in "/etc/rsyslog.conf" and typically all appear in "/var/log". To see the group-owner of a given log file, run the following command: $ ls -l [LOGFILE] Some log files referenced in /etc/rsyslog.conf may be created by other programs and may require exclusion from consideration. If the group-owner is not root, this is a finding.

Fix text

The group-owner of all log files written by "rsyslog" should be root. These log files are determined by the second part of each Rule line in "/etc/rsyslog.conf" and typically all appear in "/var/log". For each log file [LOGFILE] referenced in "/etc/rsyslog.conf", run the following command to inspect the file's group owner: $ ls -l [LOGFILE] If the owner is not "root", run the following command to correct this: # chgrp root [LOGFILE]

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