Hi Harshad,
When you mount the CIFS interface, what credentials are you supplying? I haven't tried with this latest release, but I though somewhere along the way that CIFS would only show the sandboxes that particular user ID has access too. Staging will always be visible, based on the way things are now, but you should not be able to change those assets.
Well, I just tested it out here as well. There is basically no security on the CIFS interface above and beyond the credentials you supply to mount the device. Harshad, would you like to file the JIRA, or see if one has been filed already? –> Tested on enterprise edition
Brent Kastner
Eye Street