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

From Windows Server 2008 R2 Domain Controller Security Technical Implementation Guide

Part of TS/RDS - Do Not Use Temp Folders

Associated with: CCI-000366

SV-32492r1_rule Remote Desktop Services will be configured to use session-specific temporary folders.

Vulnerability discussion

This setting controls the use of per session temporary folders or of a communal temporary folder. If this setting is enabled, only one temporary folder is used for all remote desktop sessions. If a communal temporary folder is used, it might be possible for users to access other users’ temporary folders.

Check content

If the following registry value doesn’t exist or is not configured as specified, this is a finding: Registry Hive: HKEY_LOCAL_MACHINE Subkey: \Software\Policies\Microsoft\Windows NT\Terminal Services\ Value Name: PerSessionTempDir Type: REG_DWORD Value: 1

Fix text

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”.

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