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

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-3666	3.089	SV-29356r1_rule	ECCT-1 ECCT-2	Medium

Description
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.

STIG	Date
Windows 2003 Domain Controller Security Technical Implementation Guide	2015-06-23

Details

Check Text ( None )
None

Fix Text (F-5700r1_fix)
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) servers” to “Require NTLMv2 session security”, ”Require 128-bit encryption”, ”Require Message Integrity”, and ”Require Message Confidentiality” (all options selected).

Fix Text (F-5700r1_fix)

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) servers” to “Require NTLMv2 session security”, ”Require 128-bit encryption”, ”Require Message Integrity”, and ”Require Message Confidentiality” (all options selected).