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

The Microsoft Windows Server 2012/2012 R2 Domain Controller Security Technical Implementation Guide (V3 R7) has 364 STIG checks. New to STIG checklists? Read What is a STIG checklist?, CKL vs CKLB, and STIG vs SCAP benchmark.

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Severity

Version

V3 · R7

CurrentPublished Thu Nov 09 2023

The service principal name (SPN) target name validation level must be turned off.

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

Assessment Title

Rule Text

The service principal name (SPN) target name validation level must be turned off.

Description

Discussion Text

If a service principle name (SPN) is provided by the client, it is validated against the server's list of SPNs. Implementation may disrupt file and print sharing capabilities.

New to STIG checklists? Read What is a STIG checklist? and CKL vs CKLB.

Objective

V-226300

Rule

SV-226300r794591_rule

Severity

medium

Rule Version

WN12-SO-000035

Documentable

false

IA Controls

NIST SP 800-53

Rev 5

Assessment Procedure

Check Text

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: \System\CurrentControlSet\Services\LanmanServer\Parameters\

Value Name: SmbServerNameHardeningLevel

Type: REG_DWORD
Value: 0

Implementation Procedure

Fix Text

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Microsoft network server: Server SPN target name validation level" to "Off".

STIG check 264 of 364 in the Microsoft Windows Server 2012/2012 R2 Domain Controller STIG checklist

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