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Re: Microsoft IIS '..' Problem


From: jladwig () Soils Umn EDU (John Ladwig)
Date: Fri, 26 Jul 1996 14:27:50 -0500


On Fri, 26 Jul 1996 20:41:13 +0200, Thomas Lopatic <lopatic () dbs informatik uni-muenchen de> said:

    TL> Sorry for not disclosing. I thought I had seen that one on
    TL> bugtraq. Suppose there is a document
    TL> 'http://dummy.com/Public/Index.htm&apos; and 'Index.html' is
    TL> 'C:\inetsrv\wwwroot\Public\Index.htm'. Then try getting
    TL> 'http://dummy.com/Public/../../../autoexec.bat&apos; which will
    TL> give you 'C:\autoexec.bat'. It seems, however, that the first
    TL> directory ('Public') will be necessary,
    TL> i. e. 'http://dummy.com/../../autoexec.bat&apos; won't work.

IIS 1.0c on NT 3.51 gives a "HTTP/1.0 400 Bad Request" when I try to
exploit this.  I was working out of the IIS /samples/ directory in the
attacking URL.

    -jml



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