Microsoft is busy plugging the latest security hole to be discovered in Windows NT.
The flaw exposes Active Server Pages (ASP) source code in the Windows NT file system. An unauthorised user could find the script code for the file, which is not usually accessible, by typing '$DATA' at the end of an ASP website. They would then have access to the ASP's main data stream.
The bandit user could then download a copy of the server application, including sensitive information.
The hole was found by bugwatcher NTbugtraq. Russ Cooper, the consultant who runs the NTbugtraq internet site said: "I found very few sites that were not affected."
Karan Khanna, Microsoft's NT security product manager - who called the security hole a database problem - claimed, however, that the bug should not affect sensitive information that is properly protected.
Microsoft issued a hotfix for its internet information server.
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