Check: 3.042
Windows Vista STIG:
3.042
(in versions v6 r42 through v6 r41)
Title
Outgoing secure channel traffic is not signed when possible. (Cat II impact)
Discussion
Requests sent on the secure channel are authenticated, and sensitive information (such as passwords) is encrypted, but the channel is not integrity checked. If this policy is enabled, all outgoing secure channel traffic should be signed.
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 sign 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: SignSecureChannel 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 sign secure channel data (when possible)” to “Enabled”.
Additional Identifiers
Rule ID: SV-29517r1_rule
Vulnerability ID: V-1164
Group Title: Signing 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. |