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Windows Server 2016 must be configured to prevent the storage of the LAN Manager hash of passwords.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-225053 | WN16-SO-000360 | SV-225053r877397_rule | High |
| Description |
|---|
| The LAN Manager hash uses a weak encryption algorithm and there are several tools available that use this hash to retrieve account passwords. This setting controls whether a LAN Manager hash of the password is stored in the SAM the next time the password is changed. |
| STIG | Date |
|---|---|
| Microsoft Windows Server 2016 Security Technical Implementation Guide | 2024-02-21 |
Details
| Check Text ( C-26744r466061_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: NoLMHash Value Type: REG_DWORD Value: 0x00000001 (1) |
| Fix Text (F-26732r466062_fix) |
|---|
| Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Network security: Do not store LAN Manager hash value on next password change" to "Enabled". |