Microsoft Windows Server 2019 Security Technical Implementation Guide

The Microsoft Windows Server 2019 Security Technical Implementation Guide (V3 R9) has 282 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 · R9

CurrentPublished Wed Jul 01 2026

Windows Server 2019 local users on domain-joined member servers must not be enumerated.

Microsoft Windows Server 2019 Security Technical Implementation Guide

Assessment Title

Rule Text

Windows Server 2019 local users on domain-joined member servers must not be enumerated.

Description

Discussion Text

The username is one part of logon credentials that could be used to gain access to a system. Preventing the enumeration of users limits this information to authorized personnel.

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

Objective

V-205696

Rule

SV-205696r958478_rule

Severity

medium

Rule Version

WN19-MS-000030

Documentable

false

IA Controls

NIST SP 800-53

Rev 5

Assessment Procedure

Check Text

This applies to member servers. For domain controllers and standalone or nondomain-joined systems, this is NA.

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\Policies\Microsoft\Windows\System\

Value Name: EnumerateLocalUsers

Type: REG_DWORD
Value: 0x00000000 (0)

Implementation Procedure

Fix Text

Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Logon >> "Enumerate local users on domain-joined computers" to "Disabled".

STIG check 73 of 282 in the Microsoft Windows Server 2019 STIG checklist

← Previous · V-205695Windows Server 2019 domain controllers must run on a machine dedicated to that function.Next · V-205697 →Windows Server 2019 must not have the Microsoft FTP service installed unless required by the organization.