PKU2U authentication using online identities must be prevented.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-21953	WN08-SO-000063	SV-48424r2_rule	ECSC-1	Medium

Description
PKU2U is a peer-to-peer authentication protocol. This setting prevents online identities from authenticating to domain-joined systems. Authentication will be centrally managed with Windows user accounts.

STIG	Date
Windows 8/8.1 Security Technical Implementation Guide	2017-04-28

Details

Check Text ( None )
None

Fix Text (F-41555r1_fix)
Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network Security: Allow PKU2U authentication requests to this computer to use online identities" to "Disabled".