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Vulnerabilities in HoloCMS
From: "MustLive" <mustlive () websecurity com ua>
Date: Fri, 2 Apr 2010 21:01:33 +0300
Hello Full-Disclosure! I want to warn you about security vulnerabilities in HoloCMS. ----------------------------- Advisory: Vulnerabilities in HoloCMS ----------------------------- URL: http://websecurity.com.ua/4068/ ----------------------------- Timeline: 17.03.2010 - found vulnerabilities. 25.03.2010 - disclosed at my site. 27.03.2010 - 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/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. Last variant of attack is possible due to incorrect implementation of protection in the system against this captcha bypass method (only in 1.x versions). DoS: http://site/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 are HoloCMS 1.3.1, 3.1 and previous versions. Best wishes & regards, MustLive Administrator of Websecurity web site http://websecurity.com.ua _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
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