A host-based firewall must be installed and enabled on the system.

Severity
Group ID
Group Title
Version
Rule ID
Date
STIG Version
mediumV-253281SRG-OS-000480-GPOS-00227WN11-00-000135SV-253281r991589_rule2025-02-252
Description
A firewall provides a line of defense against attack, allowing or blocking inbound and outbound connections based on a set of rules.
ℹ️ Check
Determine if a host-based firewall is installed and enabled on the system. If a host-based firewall is not installed and enabled on the system, this is a finding. The configuration requirements will be determined by the applicable firewall STIG.
✔️ Fix
Install and enable a host-based firewall on the system.