The operating system must enable an application firewall, if available.

STIG ID: SRG-OS-000480-GPOS-00232 |  SRG: SRG-OS-000480 |  Severity: medium |  CCI:  | Vulnerability Id: V-203784

Vulnerability Discussion

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.

Check

Ensure the operating system's application firewall is enabled, if available.

Fix

Verify the operating system enabled an application firewall, if available. If it does not, this is a finding. If the operating system does not support an application firewall, this may be downgraded to a CAT III finding.