All shell files must be owned by root.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-921	GEN002200 M6	SV-38014r1_rule	ECLP-1	Medium

Description
If shell files are owned by users other than root or bin, they could be modified by intruders or malicious users to perform unauthorized actions.

STIG	Date
MAC OSX 10.6 Workstation Security Technical Implementation Guide	2012-01-30

Details

Check Text ( C-37583r1_chk )
Open a terminal session and enter the following command to verify the ownership of the system shell files. cat /etc/shells | xargs -n1 ls -lL If any shell file is not owned by root, this is a finding.

Fix Text (F-32825r1_fix)
Open a terminal session and enter the following command to change the ownership of the shell file with incorrect ownership. chown root