J-Security Center

Title: Microsoft IIS 5.0 "Translate: f" Source Disclosure Vulnerability

Severity: MODERATE

Description:

Microsoft IIS 5.0 has a dedicated scripting engine for advanced file types such as ASP, ASA, HTR, etc. files. The scripting engines handle requests for these file types, processes them accordingly, and then executes them on the server.

It is possible to force the server to send back the source of known scriptable files to the client if the HTTP GET request contains a specialized header with 'Translate: f' at the end of it, and if a trailing slash '/' is appended to the end of the URL. The scripting engine will be able to locate the requested file, however, it will not recognize it as a file that needs to be processed and will proceed to send the file source to the client.

Affected Products:

  • Microsoft IIS 5.0
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Professional
  • Microsoft Windows 2000 Server

References:

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