Outgoing secure channel traffic is not encrypted or signed.

From Windows 2003 Domain Controller Security Technical Implementation Guide

Part of Encrypting and Signing of Secure Channel Traffic

Associated with IA controls: ECCT-1, ECCT-2

SV-29380r1_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.

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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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