Details

A firewall provides a line of defense against attack. To be effective, it must be enabled and properly configured. Local firewall rules will not be merged with Group Policy settings on a public network to prevent Group Policy settings from being changed.

Solution

If the system is not a member of a domain, this is NA.

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Windows Firewall with Advanced Security -> Windows Firewall with Advanced Security -> Windows Firewall Properties (this link will be in the right pane) -> Public Profile Tab -> Settings (select Customize) -> Rule merging, ‘Apply local firewall rules:’ to ‘No’.

Supportive Information

The following resource is also helpful.

• https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_MS_Windows_Firewall_V2R1_STIG.zip

This security hardening control applies to the following category of controls within NIST 800-53: System and Communications Protection.This control applies to the following type of system Windows.

References

• 800-53|SC-24
• CAT|II
• CCI|CCI-001190
• CSCv6|5.1
• CSCv6|9.2
• Rule-ID|SV-242004r698253_rule
• STIG-ID|WNFWA-000024
• STIG-Legacy|SV-54917
• STIG-Legacy|V-17442
• Vuln-ID|V-242004

Source

• Tenable.com/audits