Remote Desktop Services is configured to use a common temporary folder for all sessions.

From Windows 7 Security Technical Implementation Guide

Part of TS/RDS - Do Not Use Temp Folders

Associated with IA controls: ECRC-1

SV-25266r1_rule Remote Desktop Services is configured to use a common temporary folder for all sessions.

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 remoted desktop sessions. If a communal temporary folder is used, it might be possible for users to access other users temporary folders.

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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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