The /etc/gshadow file must have mode 0400.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22343	GEN000000-LNX001433	SV-37170r1_rule	ECLP-1	Medium

Description
The /etc/gshadow file is critical to system security and must be protected from unauthorized modification. The /etc/gshadow file contains a list of system groups and hashes for group passwords.

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

Details

Check Text ( C-35875r1_chk )
Check the mode of the /etc/gshadow file. # ls -l /etc/gshadow If the file mode is more permissive than 0400, this is a finding.

Fix Text (F-31130r1_fix)
Change the mode of the /etc/gshadow file to 0400 or less permissive. # chmod 0400 /etc/gshadow