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Vulnerabilities in MiniManager for Project MANGOS
From: "MustLive" <mustlive () websecurity com ua>
Date: Mon, 29 Mar 2010 21:19:48 +0300

Hello Full-Disclosure!

I want to warn you about security vulnerabilities in MiniManager for Project
MANGOS.

-----------------------------
Advisory: Vulnerabilities in MiniManager for Project MANGOS
-----------------------------
URL: http://websecurity.com.ua/4061/
-----------------------------
Timeline:
17.03.2010 - found vulnerabilities.
23.03.2010 - disclosed at my site.
24.03.2010 - informed developers.
-----------------------------
Details:

These are Insufficient Anti-automation and Denial of Service
vulnerabilities.

The vulnerabilities exist in captcha script CaptchaSecurityImages.php, which
is using in this system. I already reported about vulnerabilities in
CaptchaSecurityImages (http://websecurity.com.ua/4043/).

Insufficient Anti-automation:

http://site/libs/captcha/CaptchaSecurityImages.php?width=150&height=100&characters=2

Captcha bypass is possible as via half-automated or automated (with using of
OCR) methods, which were mentioned before (http://websecurity.com.ua/4043/),
as with using of session reusing with constant captcha bypass method
(http://websecurity.com.ua/1551/), which was described in project Month of
Bugs in Captchas.

DoS:

http://site/libs/captcha/CaptchaSecurityImages.php?width=1000&height=9000

With setting of large values of width and height it's possible to create
large load at the server.

Vulnerable MiniManager for Project MANGOS 0.15 and previous versions.

Best wishes & regards,
MustLive
Administrator of Websecurity web site
http://websecurity.com.ua 

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