From: Gavin Hanover (netmunkygmail.com)
Date: Thu Oct 04 2007 - 08:47:31 CDT

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Windows is doing the URI handling, not mIRC. This example can be just
as easily duplicated by entering

http:%xx../../../../../../../../../../../windows/system32/calc.exe".bat

into the start->run dialog.

http://www.kb.cert.org/vuls/id/403150

this is not a mIRC bug.

On 10/4/07, 3APA3A <3APA3Asecurity.nnov.ru> wrote:
> Dear Gavin Hanover,
>
> In this very case it's really seems to be mIRC problem ("unfiltered
> shell characters"). It doesn't depend on URL handler and will work with
> any valid URL handler. You can reproduce same vulnerability by entering
>
> http:%xx../../../../../../../../../../../windows/system32/calc.exe".bat
>
> Exploitable under Windows XP, not exploitable under Vista.
>
> --Wednesday, October 3, 2007, 11:59:45 PM, you wrote to jinc4fareijjhotmail.com:
>
> GH> is this a mirc bug or a mail client bug?
>
> >> mailto:%xx../../../../../../../../../../../windows/system32/calc.exe".bat
> >>
>
> --
> ~/ZARAZA http://securityvulns.com/
>
>
>

--
In God we trust,
Everyone else must have an x.509 certificate.

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