Terminal Services is not configured to limit users to one remote session (Terminal Server Role)

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-3449	5.038	SV-16938r1_rule		Medium

Description
This setting limits users to one remote session. It is possible, if this setting is disabled, for users to establish multiple sessions.

STIG	Date
Windows 2008 Domain Controller Security Technical Implementation Guide	2016-05-12

Details

Check Text ( C-16761r1_chk )
2008 - If the following registry value doesn’t exist or its value is not set to 1, then this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: fSingleSessionPerUser Type: REG_DWORD Value: 1 Documentable Explanation: If the system has the role as a Terminal Server, or the site is using terminal services for remote administration this requirement needs to be documented with the IAO.

Check Text ( C-16761r1_chk )

2008 - If the following registry value doesn’t exist or its value is not set to 1, then this is a finding:
Registry Hive: HKEY_LOCAL_MACHINE
Subkey: \Software\Policies\Microsoft\Windows NT\Terminal Services\

Value Name: fSingleSessionPerUser
Type: REG_DWORD
Value: 1

Documentable Explanation: If the system has the role as a Terminal Server, or the site is using terminal services for remote administration this requirement needs to be documented with the IAO.

Fix Text (F-16009r1_fix)
2008 - Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Terminal Services -> Terminal Server -> Connections “Restrict Terminal Server users to a Single Remote Session” to “Enabled”.