Hello Bugtraq! I want to warn you about security vulnerabilities in TooFAST. ----------------------------- Advisory: Vulnerabilities in TooFAST ----------------------------- URL: http://websecurity.com.ua/4053/ ----------------------------- Timeline: 17.03.2010 - found vulnerabilities. 20.03.2010 - disclosed at my site. 22.03.2010 - 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/CaptchaSecurityImages.php?width=150&height=100&characters=2 Captcha bypass is possible via half-automated or automated (with using of OCR) methods, which were mentioned before (http://websecurity.com.ua/4043/). DoS: http://site/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 TooFAST 1.5 and previous versions. Best wishes & regards, MustLive Administrator of Websecurity web site http://websecurity.com.ua
