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Services using Local System that use Negotiate when reverting to NTLM authentication must use the computer identity vs. authenticating anonymously.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-225501 | WN12-SO-000061 | SV-225501r569185_rule | Medium |
| Description |
|---|
| Services using Local System that use Negotiate when reverting to NTLM authentication may gain unauthorized access if allowed to authenticate anonymously vs. using the computer identity. |
| STIG | Date |
|---|---|
| Microsoft Windows Server 2012/2012 R2 Member Server Security Technical Implementation Guide | 2021-03-05 |
Details
| Check Text ( C-27200r471845_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: UseMachineId Type: REG_DWORD Value: 1 |
| Fix Text (F-27188r471846_fix) |
|---|
| Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> "Network security: Allow Local System to use computer identity for NTLM" to "Enabled". |