|Finding ID||Version||Rule ID||IA Controls||Severity|
|Operating system remote access functionality must have the capability to immediately disconnect current users remotely accessing the information system and/or disable further remote access. The speed of disconnect or disablement varies based on the criticality of mission functions and the need to eliminate immediate or future remote access to organizational information systems. SUSE operating systems are capable to immediately stop remote connections and services by a local system administrator. To immediately disconnect or disable remote access, the firewall needs to be set into panic mode. > sudo firewall-cmd --panic-on To enable remote connection again, panic mode needs to be disabled. > sudo firewall-cmd --panic-off|
|SUSE Linux Enterprise Server 15 Security Technical Implementation Guide||2022-12-07|
|Check Text ( C-38034r618807_chk )|
| Verify "firewalld" is configured to protect the SUSE operating system. |
Run 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 2019-11-06 10:58:11 CET; 24h ago
Main PID: 1105 (firewalld)
Tasks: 2 (limit: 4915)
??1105 /usr/bin/python3 -Es /usr/sbin/firewalld --nofork --nopid
If the service is not enabled, this is a finding.
If the service is not active, this is a finding.
|Fix Text (F-37997r618808_fix)|
| Configure the SUSE operating system to enable the firewall service. This is needed to be able to immediately disconnect or disable remote access to the whole system. |
Enable the "firewalld.service" by running the following command:
> sudo systemctl enable firewalld.service
Start the "firewalld.service" by running the following command:
> sudo systemctl start firewalld.service
To immediately disconnect or disable remote access the firewall needs to be set into panic mode.
> sudo firewall-cmd --panic-on
To enable remote connection again, panic mode needs to be disabled.
> sudo firewall-cmd --panic-off