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WordPress Front End Upload 0.5.4.4 Shell Upload

WordPress Front End Upload 0.5.4.4 Shell Upload
Posted Jul 24, 2012
Authored by Chris Kellum

WordPress Front End Upload version 0.5.4.4 suffers from a remote shell upload vulnerability.

tags | exploit, remote, shell
SHA-256 | 0193840a20a9f7c0819d8f9eb929cc2b92ed7962ad986566a8ae3ff98a761b03

WordPress Front End Upload 0.5.4.4 Shell Upload

Change Mirror Download
# 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

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