All interactive user home directories must be group-owned by the home directory owner's primary group.

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All interactive user home directories must be group-owned by the home directory owner's primary group.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-903	GEN001520	SV-37168r1_rule	ECLP-1	Medium

Description
If the Group Identifier (GID) of the home directory is not the same as the GID of the user, this would allow unauthorized access to files.

STIG	Date
Red Hat Enterprise Linux 5 Security Technical Implementation Guide	2016-12-16

Details

Check Text ( C-37527r2_chk )
Check the group ownership for each user in the /etc/passwd file. Procedure: # cut -d : -f 6 /etc/passwd \| xargs -n1 ls -ld If any user home directory is not group-owned by the assigned user's primary group, this is a finding. Home directories for application accounts requiring different group ownership must be documented using site-defined procedures.

Fix Text (F-32773r1_fix)
Change the group-owner for user home directories to the primary group of the assigned user. Procedure: Find the primary group of the user (GID) which is the fourth field of the user entry in /etc/passwd. # chgrp Document all changes.