WN22-SO-000260 Windows Server 2022 services using Local System that use Negotiate when reverting to NTLM authentication must use the computer identity instead of authenticating anonymously.
All changes in this version
Maps to CM-6 via CCI-000366
Title
Windows Server 2022 services using Local System that use Negotiate when reverting to NTLM authentication must use the computer identity instead of authenticating anonymously.
Control
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: 0x00000001 (1)
Discussion
Services using Local System that use Negotiate when reverting to NTLM authentication may gain unauthorized access if allowed to authenticate anonymously versus using the computer identity.
Related controls
CCI-000366
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".