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Services using Local System that use negotiate when reverting to NTLM authentication will use the computer identity vs. authenticating anonymously.


Overview

Finding ID Version Rule ID IA Controls Severity
V-21951 3.151 SV-32445r1_rule Medium
Description
This setting ensures that services using Local System that use negotiate when reverting to NTLM authentication will use the computer identity vs. authenticating anonymously.
STIG Date
Windows Server 2008 R2 Member Server Security Technical Implementation Guide 2019-06-18

Details

Check Text ( C-32911r1_chk )
Analyze the system using the Security Configuration and Analysis snap-in.
Expand the Security Configuration and Analysis tree view.
Navigate to Local Policies -> Security Options.

If the value for “Network Security: Allow Local System to use computer identity for NTLM” is not set to “Enabled”, then this is a finding.

The policy referenced configures the following registry value:

Registry Hive: HKEY_LOCAL_MACHINE
Subkey: \System\CurrentControlSet\Control\LSA\

Value Name: UseMachineId

Type: REG_DWORD
Value: 1
Fix Text (F-28856r1_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”.