Client computers must be required to authenticate for RPC communication.

From Windows 8 Security Technical Implementation Guide

Part of RPC - Endpoint Mapper Authentication

Associated with IA controls: ECSC-1

SV-48208r1_rule Client computers must be required to authenticate for RPC communication.

Vulnerability discussion

Configuring RPC to require authentication to the RPC Endpoint Mapper will force clients to provide authentication before RPC communication is established.

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Fix text

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Remote Procedure Call -> "Enable RPC Endpoint Mapper Client Authentication" to "Enabled.

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