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Re: Re: Internet explorer 6 on windows XP allows exection of arbitrary code (Demonstration Exploit Warning)


From: jelmer <jkuperus () planet nl>
Date: Sat, 13 Sep 2003 16:24:29 +0200

on my system mediaplayer is a protected file much like notepad.exe or 
telnet.exe are, wich means that when you delete or overwrite them they get 
put back by the system.  I am just invoking it really quick. maybe they added 
this behaviour in wmp9 and on wmp8 the changes are permanent in wich case the 
changes would be permanent and you'd have a broken mediaplayer. If this is 
true I apologize

anyway i'll put up links to backup copies on my site when I have the time just 
in case

--jelmer




On Saturday 13 September 2003 15:22, S G Masood wrote:
Hi,

Jelmer probably forgot to mention this about the
demonstration exploit[1] in his advisory[2]: Back up
"C:\Program Files\Windows Media Player\wmplayer.exe"
before using the exploit as the exploit replaces the
original wmplayer.exe(main WMP executable) with the
dropped file(also named wmplayer.exe). After
exploitation, the dropped wmplayer.exe can be deleted
and the backed-up, original version replaced.

If this is not done, the existing installation of
Windows Media Player will be damaged and will have to
be reinstalled. And, ofcourse, since the exploit
depends on replacing the WMP executable, it will not
work if Media Player is running. Test the exploit
while Media Player is not running.

Tested here successfully with Win2kSP0 IE6 WMP9.


[1]Exploit ->
http://ip3e83566f.speed.planet.nl/hacked-by-chinese/5.htm
[2]http://www.securityfocus.com/archive/1/337285


--
Regards,
S.G.Masood
Hyderabad,
India.



--
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`Because,' said Scrooge, `a little thing affects them.
A slight disorder of the stomach makes them cheats.
You may be an undigested bit of beef, a blot of
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--





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