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Remote Desktop Services must be configured to use session-specific temporary folders.


Overview

Finding ID Version Rule ID IA Controls Severity
V-3455 5.044 SV-25266r2_rule Medium
Description
If a communal temporary folder is used for remote desktop sessions, it might be possible for users to access other users' temporary folders. If this setting is enabled, only one temporary folder is used for all remote desktop sessions. Per session temporary folders must be established.
STIG Date
Windows 7 Security Technical Implementation Guide 2018-02-12

Details

Check Text ( C-51717r1_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: PerSessionTempDir

Type: REG_DWORD
Value: 1
Fix Text (F-22934r1_fix)
Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Remote Desktop Services -> Remote Desktop Session Host -> Temporary Folders “Do not use temporary folders per session” to “Disabled”.