The Windows Firewall must display notifications when a program is blocked from receiving an inbound connection for the Domain Profile.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-17420	5.455	SV-18476r3_rule	ECSC-1	Low

Description
A firewall provides a line of defense against attack. To be effective, it must be enabled and properly configured. The display of notifications to the user when a program is blocked from receiving an inbound connection in the domain must be enabled to alert the user of potential issues.

STIG	Date
Windows Vista Security Technical Implementation Guide	2013-10-01

Details

Check Text ( C-45361r1_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: DisableNotifications Type: REG_DWORD Value: 0 If the Windows Firewall is used and 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-41926r3_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) -> Firewall settings, "Display a notification" to "Yes (default)". Configure a comparable setting if a third-party firewall is used.