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

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-205868	WN19-CC-000190	SV-205868r569188_rule		Medium

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).

STIG	Date
Microsoft Windows Server 2019 Security Technical Implementation Guide	2021-03-05

Details

Check Text ( 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_MACHINE Registry Path: \SOFTWARE\Policies\Microsoft\Power\PowerSettings\0e796bdb-100d-47d6-a2d5-f7d2daa51f51\ Value Name: ACSettingIndex Type: REG_DWORD Value: 0x00000001 (1)

Fix Text (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".