The system is not configured to meet the minimum requirement for session security for NTLM SSP based Clients.

From Windows 2003 Domain Controller Security Technical Implementation Guide

Part of Session Security for NTLM SSP Based Clients

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

SV-29529r1_rule The system is not configured to meet the minimum requirement for session security for NTLM SSP based Clients.

Vulnerability discussion

Microsoft has implemented a variety of security support providers for use with RPC sessions. In a homogenous Windows environment, all of the options should be enabled and testing should be performed in a heterogeneous environment to determine the maximum-security level that provides reliable functionality.

Check content

Fix text

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “Network security: Minimum session security for NTLM SSP based (including secure RPC) clients” to “Require NTLMv2 session security”, ”Require 128-bit encryption”, ”Require Message Integrity”, and ”Require Message Confidentiality” (all options selected).

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