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Local administrator accounts must have their privileged token filtered to prevent elevated privileges from being used over the network on domain systems.


Finding ID Version Rule ID IA Controls Severity
V-225008 WN16-MS-000020 SV-225008r569186_rule Medium
A compromised local administrator account can provide means for an attacker to move laterally between domain systems. With User Account Control enabled, filtering the privileged token for local administrator accounts will prevent the elevated privileges of these accounts from being used over the network.
Microsoft Windows Server 2016 Security Technical Implementation Guide 2022-03-01


Check Text ( C-26699r465926_chk )
This applies to member servers. For domain controllers and standalone systems, this is NA.

If the following registry value does not exist or is not configured as specified, this is a finding.

Registry Path: \SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System

Value Name: LocalAccountTokenFilterPolicy

Value: 0x00000000 (0)

This setting may cause issues with some network scanning tools if local administrative accounts are used remotely. Scans should use domain accounts where possible. If a local administrative account must be used, temporarily enabling the privileged token by configuring the registry value to "1" may be required.
Fix Text (F-26687r465927_fix)
Configure the policy value for Computer Configuration >> Administrative Templates >> MS Security Guide >> "Apply UAC restrictions to local accounts on network logons" to "Enabled".

This policy setting requires the installation of the SecGuide custom templates included with the STIG package. "SecGuide.admx" and " SecGuide.adml" must be copied to the \Windows\PolicyDefinitions and \Windows\PolicyDefinitions\en-US directories respectively.