RHEL 9 /etc/group file must be group-owned by root.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-257899	RHEL-09-232095	SV-257899r925684_rule		Medium

Description
The "/etc/group" file contains information regarding groups that are configured on the system. Protection of this file is important for system security.

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

Details

Check Text ( C-61640r925682_chk )
Verify the group ownership of the "/etc/group" file with the following command: $ sudo stat -c "%G %n" /etc/group root /etc/group If "/etc/group" file does not have a group owner of "root", this is a finding.

Fix Text (F-61564r925683_fix)
Change the group of the file /etc/group to root by running the following command: $ sudo chgrp root /etc/group