Article ID: 222159 - View products that this article applies to.
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When you modify the "\??" object folder's symbolic link table by substituting a different case (upper versus lower) letter in the table to point to a different device associated with a disk drive alias, it may be possible to bypass typical Windows NT security and allow any user to acquire administrator privileges.
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or the individual software update. For information on obtaining the latest service pack, please go to:
Once you have installed the Windows NT 4.0 service pack, it is necessary to enable base system object restrictions to prevent the use of this security exploit. To do this:
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows NT 4.0 Service Pack 5.
Article ID: 222159 - Last Review: November 2, 2013 - Revision: 4.0