STIGQter: STIG Summary: Oracle Linux 9 Security Technical Implementation Guide Version: 1 Release: 6 Benchmark Date: 01 Jul 2026:

OL 9 must control remote access methods.

DISA Rule

SV-271472r1091128_rule

Vulnerability Number

V-271472

Group Title

SRG-OS-000096-GPOS-00050

Rule Version

OL09-00-000223

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

Configure OL 9 to allow approved settings and/or running services to comply with the PPSM CLSA for the site or program and the PPSM CAL.

To open a port for a service, configure firewalld using the following command:

$ sudo firewall-cmd --permanent --add-port=port_number/tcp
or
$ sudo firewall-cmd --permanent --add-service=service_name

Check Contents

Verify that OL 9 controls remote access methods.

Inspect the list of enabled firewall ports and verify they are configured correctly by running the following command:

$ sudo firewall-cmd --list-all

Ask the system administrator for the site or program Ports, Protocols, and Services Management Component Local Service Assessment (PPSM CLSA). Verify the services allowed by the firewall match the PPSM CLSA.

If there are additional ports, protocols, or services that are not in the PPSM CLSA, or there are ports, protocols, or services that are prohibited by the PPSM Category Assurance List (CAL), or there are no firewall rules configured, this is a finding.

Vulnerability Number

V-271472

Documentable

False

Rule Version

OL09-00-000223

Severity Override Guidance

Verify that OL 9 controls remote access methods.

Inspect the list of enabled firewall ports and verify they are configured correctly by running the following command:

$ sudo firewall-cmd --list-all

Ask the system administrator for the site or program Ports, Protocols, and Services Management Component Local Service Assessment (PPSM CLSA). Verify the services allowed by the firewall match the PPSM CLSA.

If there are additional ports, protocols, or services that are not in the PPSM CLSA, or there are ports, protocols, or services that are prohibited by the PPSM Category Assurance List (CAL), or there are no firewall rules configured, this is a finding.

Check Content Reference

M

Target Key

5680