All skeleton files (typically in /etc/skel) must be group-owned by root, bin or sys.

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All skeleton files (typically in /etc/skel) must be group-owned by root, bin or sys.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22358	GEN001830	SV-45139r2_rule		Medium

Description
If the skeleton files are not protected, unauthorized personnel could change user startup parameters and possibly jeopardize user files.

STIG	Date
SUSE Linux Enterprise Server v11 for System z Security Technical Implementation Guide	2018-09-19

Details

Check Text ( C-42482r2_chk )
Verify the skeleton files are group-owned by root, bin or sys. Procedure: # ls -alL /etc/skel If a skeleton file is not group-owned by root, bin or sys this is a finding.

Fix Text (F-38535r3_fix)
Change the group-owner of the skeleton file to root, bin or sys. Procedure: # chgrp /etc/skel/ or: # cd /etc/skel # ls -L /etc/skel\|xargs stat -L -c %G:%n\|egrep -v "^(root\|bin\|sys):"\|cut -d: -f2\|xargs chgrp root will change the group of all files not already in one of the approved groups to root.