Finding ID | Version | Rule ID | IA Controls | Severity |
---|---|---|---|---|
V-17421 | WNFWA-000007 | SV-54867r1_rule | ECSC-1 | Medium |
Description |
---|
A firewall provides a line of defense against attack. To be effective, it must be enabled and properly configured. Unicast responses to multicast or broadcast messages in the domain will be blocked. This helps minimize the risk of an attacker using broadcast or multicast traffic to deliver malicious payloads. |
STIG | Date |
---|---|
Windows Firewall with Advanced Security Security Technical Implementation Guide | 2014-01-07 |
Check Text ( C-48645r2_chk ) |
---|
If the system is not a member of a domain, the Domain Profile requirements can be marked NA. 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\DomainProfile\ Value Name: DisableUnicastResponsesToMulticastBroadcast Type: REG_DWORD Value: 1 |
Fix Text (F-47735r1_fix) |
---|
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) -> Domain Profile Tab -> Settings (select Customize) -> Unicast response, "Allow unicast response" to "No". |