Finding ID | Version | Rule ID | IA Controls | Severity |
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V-17438 | WNFWA-000020 | SV-54906r1_rule | ECSC-1 | High |
Description |
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A firewall provides a line of defense against attack. To be effective, it must be enabled and properly configured. Unsolicited inbound connections may be malicious attempts to gain access to a system. Unsolicited inbound connections, for which there is no rule allowing the connection, will be blocked on a public network. |
STIG | Date |
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Windows Firewall with Advanced Security Security Technical Implementation Guide | 2014-01-07 |
Check Text ( C-48665r2_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: DefaultInboundAction Type: REG_DWORD Value: 1 |
Fix Text (F-47774r1_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 -> State, "Inbound connections" to "Block (default)". |