Check: WN19-CC-000380
Microsoft Windows Server 2019 STIG:
WN19-CC-000380
(in versions v3 r2 through v1 r1)
Title
Windows Server 2019 Remote Desktop Services must be configured with the client connection encryption set to High Level. (Cat II impact)
Discussion
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
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\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: MinEncryptionLevel Type: REG_DWORD Value: 0x00000003 (3)
Fix Text
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.
Additional Identifiers
Rule ID: SV-205637r958408_rule
Vulnerability ID: V-205637
Group Title: SRG-OS-000033-GPOS-00014
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-000068 |
Implement cryptographic mechanisms to protect the confidentiality of remote access sessions. |
| CCI-001453 |
Implement cryptographic mechanisms to protect the integrity of remote access sessions. |
Controls
| Number | Title |
|---|---|
| AC-17(2) |
Protection of Confidentiality / Integrity Using Encryption |