Finding ID | Version | Rule ID | IA Controls | Severity |
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V-215112 | UBTU-16-030040 | SV-215112r508033_rule | Medium |
Description |
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Firewalls protect computers from network attacks by blocking or limiting access to open network ports. Application firewalls limit which applications are allowed to communicate over the network. |
STIG | Date |
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Canonical Ubuntu 16.04 LTS Security Technical Implementation Guide | 2020-09-03 |
Check Text ( C-16311r285204_chk ) |
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Verify the Uncomplicated Firewall is enabled on the system by running the following command: # sudo systemctl is-enabled ufw enabled If the above command returns the status as "disabled", this is a finding. If the Uncomplicated Firewall is not installed, ask the System Administrator if another application firewall is installed. If no application firewall is installed this is a finding. |
Fix Text (F-16309r285205_fix) |
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Enable the Uncomplicated Firewall by using the following commands: # sudo systemctl start ufw # sudo systemctl enable ufw |