Windows 10 Security Technical Implementation Guide

The Windows 10 Security Technical Implementation Guide (V2 R2) has 285 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

V2 · R2

ArchivedPublished Tue May 04 2021

Kerberos encryption types must be configured to prevent the use of DES and RC4 encryption suites.

Windows 10 Security Technical Implementation Guide

Assessment Title

Rule Text

Kerberos encryption types must be configured to prevent the use of DES and RC4 encryption suites.

Description

Discussion Text

Certain encryption types are no longer considered secure. This setting configures a minimum encryption type for Kerberos, preventing the use of the DES and RC4 encryption suites.

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

Objective

V-220936

Rule

SV-220936r569187_rule

Severity

medium

Rule Version

WN10-SO-000190

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: \SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\Kerberos\Parameters\

Value Name: SupportedEncryptionTypes

Value Type: REG_DWORD
Value: 0x7ffffff8 (2147483640)

Implementation Procedure

Fix Text

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Network security: Configure encryption types allowed for Kerberos" to "Enabled" with only the following selected:

AES128_HMAC_SHA1
AES256_HMAC_SHA1
Future encryption types

STIG check 238 of 285 in the Windows 10 STIG checklist

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