Achievo 1.4.2 Cross Site Scripting

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Affected Platforms: Any running Achievo  
  
Severity: Medium – CVSS: 4.3 (AV:N/AC:M/Au:N/C:N/I:P/A:N)  
  
Vendor Status: New release available (Achievo 1.4.3)  
  
Reference to Vulnerability Disclosure Policy: http://www.cybsec.com/vulnerability_policy.pdf  
  
Vulnerability Description:  
  
A permanent Cross Site Scripting vulnerability was found in Achievo 1.4.2, because the application  
fails to sanitize user-supplied input. The vulnerability can be triggered by any logged-in user who is  
able to add a Scheduler Category.  
  
Proof of Concept:  
  
  
* Add <script>alert(“XSS in Category”);</script> as a new category. Then, browse the Scheduler.  
  
  
Impact:  
  
An affected user may unintentionally execute scripts or actions written by an attacker. In addition, an  
attacker may obtain authorization cookies that would allow him to gain unauthorized access to the  
application.  
  
Solution:  
  
New category is now correctly sanitized.  
  
Vendor Response:  
2009-12-03 – Vulnerability was identified  
2009-12-03 – Vendor contacted  
2009-12-03 – Vendor confirmed vulnerability  
2009-12-03 – Vendor released fixed version  
2009-12-04 – Vulnerability published  
  
Contact Information:  
  
For more information regarding the vulnerability feel free to contact the researcher at  
ngrisolia <at> cybsec <dot> com  
  
About CYBSEC S.A. Security Systems  
  
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Our services are strictly focused on Information Security, protecting our clients from emerging security  
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Beyond professional services, CYBSEC is continuously researching new defense and attack techniques  
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For more information, please visit www.cybsec.com  
(c) 2009 - CYBSEC S.A. Security Systems  
  
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