The setting Domain member: Digitally sign secure channel data (when possible) must be configured to Enabled.

From Windows Server 2016 Security Technical Implementation Guide

Part of SRG-OS-000423-GPOS-00187

Associated with: CCI-002418 CCI-002421

SV-88301r1_rule The setting Domain member: Digitally sign secure channel data (when possible) must be configured to Enabled.

Vulnerability 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, outgoing secure channel traffic will be signed.Satisfies: SRG-OS-000423-GPOS-00187, SRG-OS-000424-GPOS-00188

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 Registry Path: \SYSTEM\CurrentControlSet\Services\Netlogon\Parameters\ Value Name: SignSecureChannel Value Type: REG_DWORD Value: 0x00000001 (1)

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".

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