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The Windows Firewall with Advanced Security local connection rules must not be merged with Group Policy settings when connected to a public network.


Overview

Finding ID Version Rule ID IA Controls Severity
V-17443 WNFWA-000025 SV-54918r3_rule ECSC-1 Medium
Description
A firewall provides a line of defense against attack. To be effective, it must be enabled and properly configured. Local connection rules will not be merged with Group Policy settings on a public network to prevent Group Policy settings from being changed.
STIG Date
Windows Firewall with Advanced Security Security Technical Implementation Guide 2015-06-26

Details

Check Text ( None )
None
Fix Text (F-63525r1_fix)
If the system is not a member of a domain, this is NA.

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 -> Settings (select Customize) -> Rule merging, "Apply local connection security rules:" to "No".