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RHEL 9 /etc/passwd- file must be group-owned by root.


Overview

Finding ID Version Rule ID IA Controls Severity
V-257909 RHEL-09-232145 SV-257909r991589_rule Medium
Description
The "/etc/passwd-" file is a backup file of "/etc/passwd", and as such, contains information about the users that are configured on the system. Protection of this file is critical for system security.
STIG Date
Red Hat Enterprise Linux 9 Security Technical Implementation Guide 2024-06-04

Details

Check Text ( C-61650r925712_chk )
Verify the group ownership of the "/etc/passwd-" file with the following command:

$ sudo stat -c "%G %n" /etc/passwd-

root /etc/passwd-

If "/etc/passwd-" file does not have a group owner of "root", this is a finding.
Fix Text (F-61574r925713_fix)
Change the group of the file /etc/passwd- to root by running the following command:

$ sudo chgrp root /etc/passwd-