WordPress Plugin Front End Upload 0.5.4.4 – Arbitrary ‘.PHP’ File Upload
# Exploit Title: WordPress Front End Upload v0.5.4.4 Arbitrary PHP File Upload Vulnerability # Date: 7/23/12 # Exploit Author: Chris Kellum # Vendor Homepage: http://mondaybynoon.com/ # Software Link: http://downloads.wordpress.org/plugin/front-end-upload.0.5.4.4.zip # Version: 0.5.4.4 ===================== Vulnerability Details ===================== Plugin does not properly filter filetypes, which allows for the upload of filetypes in the following format: filename.php.jpg Vulnerable hosts will serve such files as a php file, allowing for malicious files to be uploaded and executed. In creating the uploads folder for this plugin, the code utilizes uniqid to add a unique string to the upload folder name in order to better hide it from direct access. Example: /wp-content/uploads/feu_9fc12558ac71e6995808cfc590207e87/ However, many WordPress installations allow direct access to the /wp-content/uploads/ folder, so simply look for a folder name beginning with 'feu_' to locate your upload. =================== Disclosure Timeline =================== 7/13/2012 - Vendor notified 7/23/2012 - Version 0.5.4.6 released 7/23/2012 - Public disclosure |