# Exploit Title: jQuery uploadify v2.1.0 Remote File Upload# Date: 21/01/2010# Author: k4cp3r/Ablus# Version: v2.1.0(uploadify.swf) Actionscript:
function setAllowedTypes():void {
allowedTypes = [];if(param.fileDesc && param.fileExt){var fileDescs:Array = param.fileDesc.split('|');var fileExts:Array = param.fileExt.split('|');for(var n = 0; n < fileDescs.length; n++){
allowedTypes.push(new FileFilter(fileDescs[n], fileExts[n]));}}}
setAllowedTypes();
The FileFilter class is used to indicate what files on the user's system are shown in the file-browsing dialog box that is displayed when the FileReference.browse() method; a user can simply bypass this filter by writing the malicious file name and path on the file browser dialog box rather than navigating and choosing it.
Exploit:
#1 : upload your file ie (shell.php)
#2 : Retreive the 'folder' parameter passed to uploadify jquery function
from the head of the page source code ie('folder': 'files/',)#3 : Navigate to your file ie(http://site/files/shell.php)
Fix:
A quick fix is to validate your file type inside uploadify.php before saving it
OR to randomize your file names :)
Greetz to all Al Akhawayn friends