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Windows Server 2019 local users on domain-joined member servers must not be enumerated.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-205696 | WN19-MS-000030 | SV-205696r958478_rule | Medium |
| Description |
|---|
| 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. |
| STIG | Date |
|---|---|
| Microsoft Windows Server 2019 Security Technical Implementation Guide | 2024-06-14 |
Details
| Check Text ( C-5961r857321_chk ) |
|---|
| 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) |
| Fix Text (F-5961r355007_fix) |
|---|
| Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Logon >> "Enumerate local users on domain-joined computers" to "Disabled". |