The Responder network protocol driver must be disabled.

From Windows Server 2012/2012 R2 Domain Controller Security Technical Implementation Guide

Associated with: CCI-000381

SV-53081r1_rule The Responder network protocol driver must be disabled.

Vulnerability discussion

The Responder network protocol driver allows a computer to be discovered and located on a network. Disabling this helps protect the system from potentially being discovered and connected to by unauthorized devices.

Check content

If the following registry values do not exist or are not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Policies\Microsoft\Windows\LLTD\ Value Name: AllowRspndrOndomain Value Name: AllowRspndrOnPublicNet Value Name: EnableRspndr Value Name: ProhibitRspndrOnPrivateNet Type: REG_DWORD Value: 0

Fix text

Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> Link-Layer Topology Discovery -> "Turn on Responder (RSPNDR) driver" to "Disabled".

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