STIGQter: STIG Summary: SUSE Linux Enterprise Micro (SLEM) 5 Security Technical Implementation Guide Version: 1 Release: 4 Benchmark Date: 01 Apr 2026:

SLEM 5 must be configured to prohibit or restrict the use of functions, ports, protocols, and/or services as defined in the Ports, Protocols, and Services Management (PPSM) Category Assignments List (CAL) and vulnerability assessments.

DISA Rule

SV-261310r996401_rule

Vulnerability Number

V-261310

Group Title

SRG-OS-000096-GPOS-00050

Rule Version

SLEM-05-251010

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.
• CCI-000366 - Implement the security configuration settings.
• CCI-002322 - Provide the capability to disconnect or disable remote access to the system within the organization-defined time period.

Weight

10

Fix Recommendation

Configure SLEM 5 is configured to prohibit or restrict the use of functions, ports, protocols, and/or services as defined in the PPSM CAL and vulnerability assessments.

Add/modify /etc/firewalld configuration files to comply with the PPSM CAL.

Enable and start the "firewalld.service" by running the following command:

> sudo systemctl enable firewalld.service --now

To immediately disable remote access and disconnect all current remote connections, the firewall needs to be set into panic mode.

> sudo firewall-cmd --panic-on

To allow remote access, panic mode needs to be disabled.

> sudo firewall-cmd --panic-off

Check Contents

Verify SLEM 5 "firewalld.service" is enabled and running with the following command:

> systemctl status firewalld.service
firewalld.service - firewalld - dynamic firewall daemon
Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled; vendor preset: disabled)
Active: active (running) since Wed 2023-11-29 08:12:35 MST

If the service is not enabled and active, this is a finding.

Check the firewall configuration for any unnecessary or prohibited functions, ports, protocols, and/or services by running the following command:

> sudo firewall-cmd --list-all

Ask the system administrator for the site or program PPSM Component Local Services Assessment (Component Local Services Assessment (CLSA). Verify the services allowed by the firewall match the PPSM CLSA.

If there are any additional ports, protocols, or services that are not included in the PPSM CLSA, this is a finding.

If there are any ports, protocols, or services that are prohibited by the PPSM CAL, this is a finding.

Vulnerability Number

V-261310

Documentable

False

Rule Version

SLEM-05-251010

Severity Override Guidance

Verify SLEM 5 "firewalld.service" is enabled and running with the following command:

> systemctl status firewalld.service
firewalld.service - firewalld - dynamic firewall daemon
Loaded: loaded (/usr/lib/systemd/system/firewalld.service; enabled; vendor preset: disabled)
Active: active (running) since Wed 2023-11-29 08:12:35 MST

If the service is not enabled and active, this is a finding.

Check the firewall configuration for any unnecessary or prohibited functions, ports, protocols, and/or services by running the following command:

> sudo firewall-cmd --list-all

Ask the system administrator for the site or program PPSM Component Local Services Assessment (Component Local Services Assessment (CLSA). Verify the services allowed by the firewall match the PPSM CLSA.

If there are any additional ports, protocols, or services that are not included in the PPSM CLSA, this is a finding.

If there are any ports, protocols, or services that are prohibited by the PPSM CAL, this is a finding.

Check Content Reference

M

Target Key

5596