STIGQter: STIG Summary: Red Hat Enterprise Linux 9 Security Technical Implementation Guide Version: 2 Release: 9 Benchmark Date: 01 Jul 2026:

The firewalld service on RHEL 9 must be active.

DISA Rule

SV-257936r1044995_rule

Vulnerability Number

V-257936

Group Title

SRG-OS-000096-GPOS-00050

Rule Version

RHEL-09-251015

Severity

CAT II

CCI(s)

• CCI-000382 - Configure the system to prohibit or restrict the use of organization-defined prohibited or restricted functions, system ports, protocols, software, and/or services.
• CCI-002314 - Employ automated mechanisms to control remote access methods.

Weight

10

Fix Recommendation

To enable the firewalld service run the following command:

$ sudo systemctl enable --now firewalld

Check Contents

Verify that "firewalld" is active with the following command:

$ systemctl is-active firewalld

active

If the firewalld service is not active, this is a finding.

Vulnerability Number

V-257936

Documentable

False

Rule Version

RHEL-09-251015

Severity Override Guidance

Verify that "firewalld" is active with the following command:

$ systemctl is-active firewalld

active

If the firewalld service is not active, this is a finding.

Check Content Reference

M

Target Key

5551