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

From Windows 7 Security Technical Implementation Guide

Part of Windows Firewall Private - Display Notifications

Associated with IA controls: ECSC-1

SV-25232r2_rule The Windows Firewall must display notifications when a program is blocked from receiving an inbound connection for the Private Profile.

Vulnerability discussion

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 on a private network must be enabled to alert the user of potential issues.

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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) -> Private Profile Tab -> Settings (select Customize) -> Firewall settings, "Display a notification" to "Yes (default)". Configure a comparable setting if a third party firewall is used.

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