Outgoing secure channel traffic is not encrypted or signed.

From Windows 2008 Domain Controller Security Technical Implementation Guide

Part of Encrypting and Signing of Secure Channel Traffic

Associated with: CCI-002418 CCI-002421

SV-29382r1_rule Outgoing secure channel traffic is not encrypted or signed.

Vulnerability 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 will be encrypted and 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 encrypt or sign secure channel data (always)” 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: RequireSignOrSeal Value Type: REG_DWORD Value: 1

Fix text

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Domain Member: Digitally encrypt or sign secure channel data (always)” to “Enabled”.

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