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

Severity
Group ID
Group Title
Version
Rule ID
Date
STIG Version
mediumV-203784SRG-OS-000480SRG-OS-000480-GPOS-00232SV-203784r991593_rule2024-12-043
Description
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.
ℹ️ Check
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.
✔️ Fix
Ensure the operating system's application firewall is enabled, if available.