Check: 3.043
Windows Vista STIG:
3.043
(in versions v6 r42 through v6 r41)
Title
Outgoing secure channel traffic is not encrypted when possible. (Cat II impact)
Discussion
Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but not all information is encrypted. If this policy is enabled, outgoing secure channel traffic should be encrypted.
Check Content
Analyze the system using the Security Configuration and Analysis snap-in. Expand the Security Configuration and Analysis tree view. Navigate to Local Policies -> Security Options. If the value for “Domain Member: Digitally encrypt secure channel data (when possible)” is not set to “Enabled”, then this is a finding. The policy referenced configures the following registry value: Registry Hive: HKEY_LOCAL_MACHINE Registry Path: \System\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: SealSecureChannel Value Type: REG_DWORD Value: 1 Note: If the value for “Domain Member: Digitally encrypt or sign secure channel data (always)” is set to “Enabled”, then this would not be a finding.
Fix Text
Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Domain Member: Digitally encrypt secure channel data (when possible)” to “Enabled”.
Additional Identifiers
Rule ID: SV-29514r1_rule
Vulnerability ID: V-1163
Group Title: Encryption of Secure Channel Traffic
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-002418 |
The information system protects the confidentiality and/or integrity of transmitted information. |
| CCI-002421 |
The information system implements cryptographic mechanisms to prevent unauthorized disclosure of information and/or detect changes to information during transmission unless otherwise protected by organization-defined alternative physical safeguards. |