XP Firewall Domain Profile – Unicast Response

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-17399	5.411	SV-18455r2_rule	ECSC-1	Medium

Description
The receipt of unicast responses to outgoing multicast or broadcast messages will be blocked when connected to the domain.

STIG	Date
Windows XP Security Technical Implementation Guide	2013-03-14

Details

Check Text ( C-45430r1_chk )
If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \SOFTWARE\Policies\Microsoft\WindowsFirewall\DomainProfile\ Value Name: DisableUnicastResponsesToMulticastBroadcast Type: REG_DWORD Value: 1 If the system is not a member of a domain, the Domain Profile requirements can be marked NA. If a third-party firewall is used, verify a comparable setting has been implemented. The Remote Endpoint STIG contains additional firewall requirements for systems used remotely.

Check Text ( C-45430r1_chk )

If the following registry value does not exist or is not configured as specified, this is a finding:

Registry Hive: HKEY_LOCAL_MACHINE
Subkey: \SOFTWARE\Policies\Microsoft\WindowsFirewall\DomainProfile\

Value Name: DisableUnicastResponsesToMulticastBroadcast
Type: REG_DWORD
Value: 1

If the system is not a member of a domain, the Domain Profile requirements can be marked NA.

If a third-party firewall is used, verify a comparable setting has been implemented.

The Remote Endpoint STIG contains additional firewall requirements for systems used remotely.

Fix Text (F-42003r2_fix)
Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> Network Connections -> Windows Firewall -> Domain Profile "Windows Firewall: Prohibit unicast response to multicast or broadcast requests" to "Enabled". Configure a comparable setting if a third-party firewall is used.