RHEL 9 /var/log/messages file must be group-owned by root.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-257917	RHEL-09-232185	SV-257917r925738_rule		Medium

Description

Only authorized personnel should be aware of errors and the details of the errors. Error messages are an indicator of an organization's operational state or can identify the RHEL 9 system or platform. Additionally, personally identifiable information (PII) and operational information must not be revealed through error messages to unauthorized personnel or their designated representatives. The structure and content of error messages must be carefully considered by the organization and development team. The extent to which the information system is able to identify and handle error conditions is guided by organizational policy and operational requirements.

STIG	Date
Red Hat Enterprise Linux 9 Security Technical Implementation Guide	2023-12-01

Details

Check Text ( C-61658r925736_chk )
Verify the "/var/log/messages" file is group-owned by root with the following command: $ ls -la /var/log/messages rw-------. 1 root root 564223 July 11 11:34 /var/log/messages If "/var/log/messages" does not have a group owner of "root", this is a finding.

Fix Text (F-61582r925737_fix)
Change the group owner of the "/var/log/messages" file to "root" by running the following command: $ sudo chgrp root /var/log/messages