OL 9 /etc/gshadow file must have mode 0000 or less permissive to prevent unauthorized access.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-271804	OL09-00-002542	SV-271804r1092124_rule		Medium

Description

The "/etc/gshadow" file contains group password hashes. Protection of this file is critical for system security.

STIG	Date
Oracle Linux 9 Security Technical Implementation Guide	2025-05-08

Details

Check Text (C-75854r1092122_chk)

Verify that OL 9 configures the "/etc/gshadow" file to have a mode pf "0000" with the following command:

$ stat -c "%a %n" /etc/gshadow
0 /etc/gshadow

If a value of "0" is not returned, this is a finding.

Fix Text (F-75761r1092123_fix)

Change the mode of the file "/etc/gshadow" to "0000" by running the following command:

$ sudo chmod 0000 /etc/gshadow