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Date: Wed, 26 Nov 2014 17:58:31 +0100
From: Damien Regad <dregad@...tisbt.org>
To: oss-security@...ts.openwall.com
Subject: CVE Request: CAPTCHA bypass in MantisBT

Description:

There is a weakness on the CAPTCHA system that is used upon registration 
of a new user that could allow a malicious individual to perform a 
denial of service attack by indiscriminately creating new accounts, thus 
generating a high load on the server.


Affected versions:
<= 1.2.17

Fixed in versions:
1.2.18 (not yet released)

Patch:
See Github [1]

Credit:
Issue was discovered by Alejo Popovici and fixed by Victor Boctor 
(MantisBT Developer)

References:
Further details available in our issue tracker [2]


D. Regad
MantisBT Developer
http://www.mantisbt.org


[1] http://github.com/mantisbt/mantisbt/commit/7bb78e45
[2] https://www.mantisbt.org/bugs/view.php?id=17811

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