Restrict unauthenticated RPC clients.

From Windows 7 Security Technical Implementation Guide

Part of RPC - Unauthenticated RPC Clients

Associated with: CCI-001967

SV-25172r1_rule Restrict unauthenticated RPC clients.

Vulnerability discussion

This check verifies that the system is configured to restrict unauthenticated RPC clients from connecting to the RPC server.

Check content

If the following registry value doesn’t exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows NT\Rpc\ Value Name: RestrictRemoteClients Type: REG_DWORD Value: 1

Fix text

Configure the policy value for Computer Configuration -> Administrative Templates -> System -> Remote Procedure Call “Restrictions for Unauthenticated RPC clients” to “Enabled” and “Authenticated”.

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