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Windows Server 2022 must not allow anonymous enumeration of Security Account Manager (SAM) accounts.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-254466 | WN22-SO-000220 | SV-254466r991589_rule | High |
| Description |
|---|
| Anonymous enumeration of SAM accounts allows anonymous logon users (null session connections) to list all accounts names, thus providing a list of potential points to attack the system. |
| STIG | Date |
|---|---|
| Microsoft Windows Server 2022 Security Technical Implementation Guide | 2024-06-14 |
Details
| Check Text ( C-57951r849212_chk ) |
|---|
| 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\Control\Lsa\ Value Name: RestrictAnonymousSAM Value Type: REG_DWORD Value: 0x00000001 (1) |
| Fix Text (F-57902r849213_fix) |
|---|
| Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> Network access: Do not allow anonymous enumeration of SAM accounts to "Enabled". |