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Cache Disclosure Leads to MYCOMPUTER Zone and Remote Compromise




Cache Disclosure Leads to MYCOMPUTER Zone and Remote Compromise

[tested]
OS:WinXp, CN version
Microsoft Internet Explorer v6.Sp1; up-to-date on 2003/11/16

[overview]
By combining cache file disclosure and several other unpatched vulnerabilties, 
an malicious INTERNET page can reach MYCOMPUTER zone. The demo uses 
Adodb.Stream to launch a remote compromise attack.

[demo]
There are two harmless demos:
Online demo, powered by ASP:
http://www.safecenter.net/UMBRELLAWEBV4/LocalZoneInCache/LocalZoneInCache-Demo/index.html
(runs harmless demonstration executable)

[technical details]
First, place an HTML file in IE cache directory and get its location.
(Liu Die Yu's http://www.safecenter.net/UMBRELLAWEBV4/threadid10008/index.html)
Second, this HTML file can be parsed as an HTML page and treated as in 
MYCOMPUTER security zone.
(Mindwarper of mlsecurity.com's http://www.mlsecurity.com/ie/ie.htm)
(Liu Die Yu's 
http://www.safecenter.net/UMBRELLAWEBV4/DblSlashForCache/DblSlashForCache-Content.htm)
At last, Overwrite NOTEPAD.EXE and make IE launch it by openning a view-source 
protocol URL:
(HTTP-EQUIV of MALWARE 's http://www.securityfocus.com/archive/1/343521)

[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