RHEL 10 must be configured so that the "/etc/shadow" file is group-owned by "root".

STIG ID: RHEL-10-400065  |  SRG: SRG-OS-000080-GPOS-00048 |  Severity: medium (CAT II)  |  CCI: CCI-000213 |  Vulnerability Id: V-281030

Vulnerability Discussion

The "/etc/shadow" file stores password hashes. Protection of this file is critical for system security.

Check

Verify RHEL 10 is configured so that the "/etc/shadow" file is group-owned by "root" with the following command:

$ sudo stat -c "%G %n" /etc/shadow
root /etc/shadow

If the "/etc/shadow" file does not have a group owner of "root", this is a finding.

Fix

Configure RHEL 10 so that the group of the "/etc/shadow" file is set to "root" by running the following command:

$ sudo chgrp root /etc/shadow