Microsoft Windows Server 2019

Windows Server 2019 users must be prompted to authenticate when the system wakes from sleep (plugged in)

STIG ID: WN19-CC-000190 |   SRG: SRG-OS-000480-GPOS-00227 |   Severity: Medium |   CCI: CCI-000366 |   Vulnerability ID: V-205868

Description

A system that does not require authentication when resuming from sleep may provide access to unauthorized users. Authentication must always be required when accessing a system. This setting ensures users are prompted for a password when the system wakes from sleep (plugged in).

Check

C-6133r355966_chk

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\Policies\Microsoft\Power\PowerSettings\0e796bdb-100d-47d6-a2d5-f7d2daa51f51\Value Name: ACSettingIndexType: REG_DWORDValue: 0x00000001 (1)

Fix

F-6133r355967_fix

Configure the policy value for Computer Configuration >> Administrative Templates >> System >> Power Management >> Sleep Settings >> "Require a password when a computer wakes (plugged in)" to "Enabled".