Windows Peer-to-Peer networking services must be turned off.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-225316	WN12-CC-000003	SV-225316r569185_rule		Medium

Description
Peer-to-Peer applications can allow unauthorized access to a system and exposure of sensitive data. This setting will turn off the Microsoft Peer-to-Peer Networking Service.

STIG	Date
Microsoft Windows Server 2012/2012 R2 Member Server Security Technical Implementation Guide	2022-03-01

Details

Check Text ( C-27015r471290_chk )
If the following registry value does not exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \Software\Policies\Microsoft\Peernet\ Value Name: Disabled Type: REG_DWORD Value: 1

Fix Text (F-27003r471291_fix)
Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> Microsoft Peer-to-Peer Networking Services -> "Turn off Microsoft Peer-to-Peer Networking Services" to "Enabled".