TaskFreak 0.6.2 - SQL Injection








Vendor notified and product update released.
Details of this report are also available at

Description of Vulnerability:
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The Tirzen Framework (http://www.tirzen.net/tzn/) is a supporting API
developed by Tirzen (http://www.tirzen.com), an intranet and internet
solutions provider. The Tirzen Framework contains a SQL injection
vulnerability (http://www.owasp.org/index.php/SQL_Injection). This
vulnerability could allow an attacker to arbitrarily manipulate SQL strings
constructed using the library. This vulnerability manifests itself most
notably in the Task Freak (http://www.taskfreak.com/) open source task
management software. The vulnerability can be exploited to bypass
authentication and gain administrative access to the Task Freak system.

Systems affected:
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Task Freak Multi User / mySQL v0.6.2 with Tirzen Framework 1.5 was tested
and shown to be vulnerable.

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Attackers could manipulate database query strings resulting in information
disclosure, data destruction, authentication bypass, etc.

Technical discussion and proof of concept:
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Tirzen Framework class TznDbConnection in the function loadByKey()
(tzn_mysql.php line 605) manifests a SQL injection vulnerability because it
fails to sanitize user supplied input used to compose SQL statements.

Proof of concept: any user can log into TaskFreak as the administrator
simply by using the username "1' or 1='1"

Vendor response:
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Upgrade to the latest version of TaskFreak.

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Justin C. Klein Keane