Windows Server 2019 Remote Desktop Services must be configured with the client connection encryption set to High Level.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-205637 | WN19-CC-000380 | SV-205637r958408_rule | CCI-000068 | medium |
| Description | ||||
| Remote connections must be encrypted to prevent interception of data or sensitive information. Selecting "High Level" will ensure encryption of Remote Desktop Services sessions in both directions. Satisfies: SRG-OS-000033-GPOS-00014, SRG-OS-000250-GPOS-00093 | ||||
| STIG | Date | |||
| Microsoft Windows Server 2019 Security Technical Implementation Guide | 2025-05-23 | |||
Details
Check Text (C-205637r958408_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\Windows NT\Terminal Services\
Value Name: MinEncryptionLevel
Type: REG_DWORD
Value: 0x00000003 (3)
Fix Text (F-5902r354830_fix)
Configure the policy value for Computer Configuration >> Administrative Templates >> Windows Components >> Remote Desktop Services >> Remote Desktop Session Host >> Security >> "Set client connection encryption level" to "Enabled" with "High Level" selected.