STIGQter: STIG Summary: Microsoft Windows Server 2019 Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 04 May 2021:

Windows Server 2019 local administrator accounts must have their privileged token filtered to prevent elevated privileges from being used over the network on domain-joined member servers.

DISA Rule

SV-205715r569188_rule

Vulnerability Number

V-205715

Group Title

SRG-OS-000134-GPOS-00068

Rule Version

WN19-MS-000020

Severity

CAT II

CCI(s)

• CCI-001084 - The information system isolates security functions from nonsecurity functions.

Weight

10

Fix Recommendation

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.

Check Contents

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

Value Name: LocalAccountTokenFilterPolicy

Type: REG_DWORD
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.

Vulnerability Number

V-205715

Documentable

False

Rule Version

WN19-MS-000020

Severity Override Guidance

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

Value Name: LocalAccountTokenFilterPolicy

Type: REG_DWORD
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.

Check Content Reference

M

Target Key

2907

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