Check: 5.043
Windows Vista STIG:
5.043
(in versions v6 r42 through v6 r41)
Title
Terminal Services is not configured with the client connection encryption set to the required 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 Terminal Services sessions in both directions.
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 Subkey: \Software\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: MinEncryptionLevel Type: REG_DWORD Value: 3
Fix Text
Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Terminal Services -> Terminal Server -> Security “Set Client Connection Encryption Level” to “Enabled” and select “High Level” for the “Encryption Level”.
Additional Identifiers
Rule ID: SV-29280r2_rule
Vulnerability ID: V-3454
Group Title: TS/RDS - Set Encryption Level
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-000068 |
The information system implements cryptographic mechanisms to protect the confidentiality of remote access sessions. |
| CCI-002890 |
The information system implements cryptographic mechanisms to protect the integrity of nonlocal maintenance and diagnostic communications. |