Windows 8/8.1 Security Technical Implementation Guide

The Windows 8/8.1 Security Technical Implementation Guide (V1 R23) has 378 STIG checks. New to STIG checklists? Read What is a STIG checklist?, CKL vs CKLB, and STIG vs SCAP benchmark.

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Severity

Version

V1 · R23

CurrentPublished Wed Jun 17 2020

The Mapper I/O network protocol (LLTDIO) driver must be disabled.

Windows 8/8.1 Security Technical Implementation Guide

Assessment Title

Rule Text

The Mapper I/O network protocol (LLTDIO) driver must be disabled.

Description

Discussion Text

The Mapper I/O network protocol (LLTDIO) driver allows the discovery of the connected network and allows various options to be enabled. Disabling this helps protect the system from potentially discovering and connecting to unauthorized devices.

New to STIG checklists? Read What is a STIG checklist? and CKL vs CKLB.

Objective

V-15696

Rule

SV-48235r2_rule

Severity

medium

Rule Version

WN08-CC-000001

Documentable

false

IA Controls

NIST SP 800-53

Rev 5

Assessment Procedure

Check Text

If the following registry values do not exist or are not configured as specified, this is a finding:

Registry Hive: HKEY_LOCAL_MACHINE
Subkey: \Software\Policies\Microsoft\Windows\LLTD\

Value Name: AllowLLTDIOOndomain
Value Name: AllowLLTDIOOnPublicNet
Value Name: EnableLLTDIO
Value Name: ProhibitLLTDIOOnPrivateNet

Type: REG_DWORD
Value: 0

Implementation Procedure

Fix Text

Configure the policy value for Computer Configuration -> Administrative Templates -> Network -> Link-Layer Topology Discovery -> "Turn on Mapper I/O (LLTDIO) driver" to "Disabled".

STIG check 88 of 378 in the Windows 8/8.1 STIG checklist

← Previous · V-15687Users must not be presented with Privacy and Installation options on first use of Windows Media Player.Next · V-15697 →The Responder network protocol driver must be disabled.