STIGQter: STIG Summary: Microsoft Windows Server 2019 Security Technical Implementation Guide Version: 2 Release: 2 Benchmark Date: 04 May 2021:

Windows Server 2019 Remote Desktop Services must be configured with the client connection encryption set to High Level.

DISA Rule

SV-205637r569188_rule

Vulnerability Number

V-205637

Group Title

SRG-OS-000033-GPOS-00014

Rule Version

WN19-CC-000380

Severity

CAT II

CCI(s)

• CCI-001453 - The information system implements cryptographic mechanisms to protect the integrity of remote access sessions.
• CCI-000068 - The information system implements cryptographic mechanisms to protect the confidentiality of remote access sessions.

Weight

10

Fix Recommendation

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.

Check Contents

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)

Vulnerability Number

V-205637

Documentable

False

Rule Version

WN19-CC-000380

Severity Override Guidance

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)

Check Content Reference

M

Target Key

2907

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