Security issue with Managed Prefences for USB being bypassed

[DanielN]

Hi,
We run Managed Preferences fro users, groups and computers through our xserve onto our iMacs -

One setting is not to allow USB devices plugged into the iMacs to work (read/write disabled);

This works fine on the iMacs, but we just noticed that when you have Parallels (in our case running Windows XP) on the iMacs hosts, once a USB key is plugged, the Managed Preferences are bypassed, the the user can read/write onto the USB key through the Guest OS (Windows)

Please advise is this is a settings issue that needs udpating so that Parallels checks these settings, or if this will be mended in a future update/etc..

Thanks for any clarifications!

Cheers,

 

[desgael]

You can actually just disable such function in Parallels Desktop -> Preferences -> "Connect to the computer" when USB is plugged.

And there is a SmartMount feature that connects the USB storage device as a network drive to Guest OS. If it still does in your case then this is most probably a permissions issue. In any case, you can disable this as well: Virtual Machine -> Configure -> Smartmount.