Re: Vulnerabilities in GlobalWoW

[Ivan Carlos <icarlos () icarlos net>]

C'mon... isn't that (gaming non-licensed server over a patented application) illegal?

Reporting vulns on counterfeit applications is useless.

Ivan Carlos
CISO, Consultant
+55 (11) 8112-0666
www.icarlos.net

-----Original Message-----
From: full-disclosure-bounces () lists grok org uk [mailto:full-disclosure-bounces () lists grok org uk] On Behalf Of 
MustLive
Sent: quarta-feira, 31 de agosto de 2011 17:44
To: submissions () packetstormsecurity org; full-disclosure () lists grok org uk
Subject: [Full-disclosure] Vulnerabilities in GlobalWoW

Hello list!

I want to warn you about Insufficient Anti-automation and Denial of Service vulnerabilities in GlobalWoW. Also 
GlobalWow can be included in ArcEmu and WOW Emulator Server.

This is the last of few advisories which I've made in April 2010. In this advisory I'm continue to inform readers of 
mailing lists about vulnerable web applications which are using CaptchaSecurityImages.php.

-------------------------
Affected products:
-------------------------

Vulnerable are GlobalWow 3.0.9 and previous versions (and potentially next versions).

Also the next products are affected: ArcEmu and WOW Emulator Server with which GlobalWow can be bundled.

I've already wrote last year the recommendations about fixing these issues in another my advisory concerning vulnerable 
web application with CaptchaSecurityImages.php. As I wrote earlier (http://www.securityfocus.com/archive/1/511023), 
developers of CaptchaSecurityImages.php fixed this hole at 27.03.2007. So one of the way to fix these issues is to use 
fixed version of the script or to make appropriate changes in com_bookman's version of the script.

----------
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 wrote 
at my site about vulnerabilities in CaptchaSecurityImages (http://websecurity.com.ua/4043/).

Insufficient Anti-automation (WASC-21):

http://site/acs/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 (WASC-10):

http://site/acs/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.

------------
Timeline:
------------

2010.04.16 - disclosed at my site.
2010.04.17 - informed developers.
2010.04.18 - informed developers on another e-mail.

I mentioned about these vulnerabilities at my site (http://websecurity.com.ua/4134/).

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


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_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/