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Re: Re: RE: playing for fun with <=IE7
From: laurent.gaffie () gmail com
Date: 25 Oct 2007 15:58:16 -0000

Hi there
Nop it wont work.
http://dams083.free.fr/tmp/putty.exe?explorer.exe
the first .exe extension will be overwriten by
the second one . then it will be putty.exe anyways.

"avivra" did mention that he was able to use this bypass to automate the PDF attack vector
found by GNUCitizen's pdp
http://aviv.raffon.net/2007/10/15/BackFromTheDead.aspx

he also did mention that cyber_flash found the same kind of vuln on IE6 sp2 3 years ago.

thanks to him for theses precisions.

i was also able to reproduce the pdp(gnucitizen) pdf 0days remotly without any promt with IE7
using the avivra idea/exemple showed on his video
here's a live exemple:
http://dams083.free.fr/pdf_poc.exe?1.pdf
pdf is open , calc.exe is launched no promt .

we can imagine the impact with a:
-permanent Xss
-malicious webpage
-worm
-etc 

regards laurent gaffiƩ

//sorry for the delay.


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