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Computer Identity Authentication for NTLM is used.


Overview

Finding ID Version Rule ID IA Controls Severity
V-21951 3.151 SV-25274r1_rule ECSC-1 Medium
Description
This setting ensures that services using Local System that use negotiate when reverting to NTLM authentication will use the computer identity vs. anonymously.
STIG Date
Windows 7 Security Technical Implementation Guide 2014-06-27

Details

Check Text ( C-26835r1_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-22940r1_fix)
Configure the policy value for “Network Security: Allow Local System to use computer identity for NTLM” to “Enabled”.