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TUCoPS :: Browsers :: hack2188.htm

IE Remote Compromise by Getting Cache Location



IE Remote Compromise by Getting Cache Location



IE Remote Compromise by Getting Cache Location



[tested]

OS:WinXp, CN version

Microsoft Internet Explorer v6.Sp1; up-to-date on 2003/11/16



[overview]

With the help of LocalZoneInCache(refer to "[technical details]" part), an attacker can compromise a user's system even though the user has:

1. Customized IE cache directory,

2. Applied MS03-048 patch,

3. Set killbit for ADODB.STREAM ActiveX.



[demo]

online demo, powered by ASP:

http://www.safecenter.net/UMBRELLAWEBV4/execdror6/execdror6-D emo/index.html

(runs harmless demonstration executable)



[technical details]

execdror6 is derived from execdror5.

(Liu Die Yu's http://www.safecenter.net/UMBRELLAWEBV4/execdror5/) 

execdror6 differs from execdror5 in that:

1st, execdror6 uses LocalZoneInCache to reach MYCOMPUTER security zone.

(Liu Die Yu's http://www.safecenter.net/UMBRELLAWEBV4/LocalZoneInCache/inde x.html)

2nd, execdror6 gets IE cache directory directly from location.href.

(LocalZoneInCache makes attaker's HTML page opened in cache directory.)



[Workaround]

Disable Active Scripting in INTERNET zone, so HTML page opened in the cache can't send information back to the attacker.



[Greetings]

greetings to:

Drew Copley, dror, guninski, vadim and mkill.



-----

all mentioned resources can always be found at UMBRELLA.MX.TC



[people]

LiuDieyuinchina [N0-@-Sp2m] yahoo.com.cn

UMBRELLA.MX.TC ==> How to contact "Liu Die Yu"



[Employment]

I would like to work professionally as a security researcher/bug finder. 



See my resume at my site. I am very eager to work, flexible, and 

extremely productive. I have a top notch resume, with credentials 

from leading bug finders. I am willing to work per contract, relocate, 

or telecommute. 

 

[Give a Hand]

I haven't got a job as a security researcher yet and my family don't support my security work - so, I don't have a computer of my own. Please consider about donating at:

http://clik.to/donatepc 



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