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

From Windows 8 Security Technical Implementation Guide

Part of Computer Identity Authentication for NTLM

Associated with IA controls: ECSC-1

SV-48419r1_rule Services using Local System that use Negotiate when reverting to NTLM authentication must use the computer identity vs. authenticating anonymously.

Vulnerability discussion

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.

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Fix text

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".

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