Detections
Analytics
WN25-SO-000270 - Windows Server 2025 must prevent NTLM from falling back to a Null session.
Information
NTLM sessions that are allowed to fall back to Null (unauthenticated) sessions may gain unauthorized access.Solution
Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> Network security: Allow LocalSystem NULL session fallback 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-278221r1181369_rule, STIG-ID|WN25-SO-000270, Vuln-ID|V-278221
Plugin: Windows
Control ID: d50330de07e6df4ea79111af7360e60978f15187119962f467b7280e927a7f1a