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Date: Mon Feb 20 18:38:11 2006 From: mail at hackingspirits.com (Debasis Mohanty) Subject: PHPMyChat Authentication Bypass PHPMyChat Authentication Bypass ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ I won't have bothered to post this silly flaw but after seeing the google search result for inurl:phpMyChat.php3 , I thought it would be good idea to keep people informed. I. BACKGROUND phpMyChat is an easy-to-install, easy-to-use multi-room chat based on PHP and a database, supporting MySQL, PostgreSQL, and ODBC. It supports some IRC-like commands, and has been translated to 33 different languages. II. BUG DESCRIPTION In the default installation of phpmychat (version 0.14.5) any unregistered user can get access to the chat rooms by inputing both the user name and password as same in the input box. i.e. the user name should be same as password. I tried loging in through various vulnerable sites using these user id and password combination which granted me un-authorised access to the rooms - User Id Password ~~~~~~~~ ~~~~~~~~ admin admin user user hacked hacked ... ... Note: In some cases the user id with 'admin' might not work for the password as 'admin' as during installation the owner might have changed it. III. IMPACT Un-authorised user access to chat rooms IV. AFFECTED PRODUCTS I have only tested this for PhpMyChat 0.14.5 but I guess the previous versions might also be affected. V. VENDOR http://phpmychat.sourceforge.net http://www.phpheaven.net/rubrique4.html VI. CREDITS Debasis Mohanty www.hackingspirits.com
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