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Windows Server 2019 Smart Card removal option must be configured to Force Logoff or Lock Workstation.


Overview

Finding ID Version Rule ID IA Controls Severity
V-205912 WN19-SO-000150 SV-205912r569188_rule Medium
Description
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.
STIG Date
Microsoft Windows Server 2019 Security Technical Implementation Guide 2022-03-01

Details

Check Text ( C-6177r356098_chk )
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)

If configuring this on servers causes issues, such as terminating users' remote sessions, and the organization has a policy in place that any other sessions on the servers, such as administrative console logons, are manually locked or logged off when unattended or not in use, this would be acceptable. This must be documented with the ISSO.
Fix Text (F-6177r356099_fix)
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".