The /etc/group file must not contain any group password hashes.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22348	GEN001475	SV-37383r1_rule	ECLP-1	Medium

Description
Group passwords are typically shared and should not be used. Additionally, if password hashes are readable by non-administrators, the passwords are subject to attack through lookup tables or cryptographic weaknesses in the hashes.

STIG	Date
Red Hat Enterprise Linux 5 Security Technical Implementation Guide	2017-03-01

Details

Check Text ( C-36070r1_chk )
Check the /etc/group file for password hashes. # cut -d : -f 2 /etc/group | egrep -v '^(x|!)$' If any password hashes are returned, this is a finding.

Fix Text (F-31314r1_fix)
Edit /etc/group and change the password field to an exclamation point (!) to lock the group password.