Users must be prevented from mapping local LPT ports and redirecting data from the Remote Desktop Session Host to local LPT ports. (Remote Desktop Services Role).


Overview

Finding ID Version Rule ID IA Controls Severity
V-225405 WN12-CC-000133 SV-225405r852230_rule Medium
Description
Preventing the redirection of Remote Desktop session data to a client computer's LPT ports helps reduce possible exposure of sensitive data.
STIG Date
Microsoft Windows Server 2012/2012 R2 Member Server Security Technical Implementation Guide 2022-09-06

Details

Check Text ( C-27104r471557_chk )
If the following registry value does not exist or is not configured as specified, this is a finding:

Registry Hive: HKEY_LOCAL_MACHINE
Registry Path: \Software\Policies\Microsoft\Windows NT\Terminal Services\

Value Name: fDisableLPT

Type: REG_DWORD
Value: 1
Fix Text (F-27092r471558_fix)
Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Device and Resource Redirection -> "Do not allow LPT port redirection" to "Enabled".