Finding ID | Version | Rule ID | IA Controls | Severity |
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V-17442 | WNFWA-000024 | SV-54917r1_rule | ECSC-1 | Medium |
Description |
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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. |
STIG | Date |
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Windows Firewall with Advanced Security Security Technical Implementation Guide | 2014-01-07 |
Check Text ( C-48671r2_chk ) |
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Verify the registry value below. If this registry value does not exist or is not configured as specified, this is a finding. Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Policies\Microsoft\WindowsFirewall\PublicProfile\ Value Name: AllowLocalPolicyMerge Type: REG_DWORD Value: 0 |
Fix Text (F-47785r1_fix) |
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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". |