11139867 2003-12-26 21:37 +0100 /39 rader/ <n.teusink@planet.nl> Importerad: 2003-12-26 22:11 av Brevbäraren Extern mottagare: bugtraq@securityfocus.com Mottagare: Bugtraq (import) <30456> Ärende: OpenBB 1.06 SQL Injection ------------------------------------------------------------ From: n.teusink@planet.nl To: bugtraq@securityfocus.com Message-ID: <3FECAA06.26609.59D6D04@localhost> Hello bugtraq readers, A vulnerability exists in OpenBB 1.06 that could allow an attacker to manipulate SQL queries and obtain sensitive information from the database such as the administrator md5 password hash. This vulnerability exists because the index.php script of the application does not sufficiently sanitize the input of the "CID" parameter. As far as I know this vulnerability can only be exploited if the database server the forum uses supports the UNION keyword, so it is probably not exploitable with MySQL 3.x. I have succesfully exploited this issue when using MySQL 4 as the database server. Impact ------ If the admin password is weak enough the attacker could crack it using a brute force password cracker on the hash and get full control over the forum. Solution -------- I have notified the OpenBB developers and they have very quickly (a couple of hours, great work guys!) released a patched version. You can also patch your forum manually as described in the OpenBB advisory: http://forums.openbb.com/read.php?TID=445 Cheers, Niels Teusink http://www.teusink.net (11139867) /<n.teusink@planet.nl>/--------(Ombruten)