Detections
Analytics
WN25-SO-000280 - Windows Server 2025 must prevent PKU2U authentication using online identities.
Information
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.Solution
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'.See Also
https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_MS_Windows_Server_2025_V1R1_STIG.zip
Item Details
Audit Name: DISA Microsoft Windows Server 2025 STIG v1r1
Category: CONFIGURATION MANAGEMENT
References: 800-53|CM-6b., CAT|II, CCI|CCI-000366, Rule-ID|SV-278222r1181372_rule, STIG-ID|WN25-SO-000280, Vuln-ID|V-278222
Plugin: Windows
Control ID: 06de33a2b55237fedec1f3982300a24d342b737c7d3a0dde8dce4dba6d08d597