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Microsoft IIS Front Page 98 Extension Filename Obfuscation Vulnerability

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Microsoft IIS Front Page 98 Extension Filename Obfuscation Vulnerability

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
04/14/2000
Created
07/25/2018
Added
11/01/2004
Modified
12/04/2013

Description

Two DLLs (dvwssr.dll and mtd2lv.dll) included with the FrontPage 98 extensions for IIS and shipped as part of the NT Option Pack include an obfuscation string that manipulates the name of requested files. Knowing this string and the obfuscation algorithm allows anyone with web authoring privileges on the target host to download any .asp or .asa source on the system (including files outside the web root, through usage of the '../' string).

This includes users with web authoring rights to only one of several virtual hosts on a system, allowing one company to potentially gain access to the source of another company's website if hosted on the same physical machine.

Solution(s)

  • http-iis-0008

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