The Smart Card removal option must be configured to Force Logoff or Lock Workstation.

From Windows 10 Security Technical Implementation Guide

Associated with: CCI-000366

SV-78187r1_rule The Smart Card removal option must be configured to Force Logoff or Lock Workstation.

Vulnerability discussion

Unattended systems are susceptible to unauthorized use and must be locked. Configuring a system to lock when a smart card is removed will ensure the system is inaccessible when unattended.

Check content

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 NT\CurrentVersion\Winlogon\ Value Name: SCRemoveOption Value Type: REG_SZ Value: 1 (Lock Workstation) or 2 (Force Logoff) This can be left not configured or set to "No action" on workstations with the following conditions. This must be documented with the ISSO. -The setting cannot be configured due to mission needs, or because it interferes with applications. -Policy must be in place that users manually lock workstations when leaving them unattended. -The screen saver is properly configured to lock as required.

Fix text

Configure the policy value for Computer Configuration >> Windows Settings >> Security Settings >> Local Policies >> Security Options >> "Interactive logon: Smart card removal behavior" to "Lock Workstation" or "Force Logoff".

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