Microsoft Windows 10

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

STIG ID: WN10-CC-000037 |   SRG: SRG-OS-000134-GPOS-00068 |   Severity: Medium |   CCI: CCI-001084 |   Vulnerability ID: V-220799

Description

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 built-in administrator accounts will prevent the elevated privileges of these accounts from being used over the network.

Check

C-22514r554882_chk

If the system is not a member of a domain, 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_MACHINERegistry Path: SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\Value Name: LocalAccountTokenFilterPolicyValue Type: REG_DWORDValue: 0x00000000 (0)

Fix

F-22503r554883_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.