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Possible phpBB <=2.0.11 bug or sql injection?

jtm297optonline.net
Date: Thu Feb 17 2005 - 03:54:57 CST

Since phpbb's website says not to post it on their forum, I guess I'll post my findings here.

http://www.phpbb.com/phpBB/search.php?search_author=\*\'fnfnfffffa,'\*\*\cdf

or

http://www.phpbb.com/phpBB/search.php?search_author=\*\*\*\*\*\*\*\*\*\

It seems it has something to do with the the \'s *'s and length. I am not sure if this is a big bug but I decided to try that after looking at search.php
************************************************

        $search_author = str_replace('*', '%', trim($search_author));
                                
                                $sql = "SELECT user_id
                                        FROM " . USERS_TABLE . "
                                        WHERE username LIKE '" . str_replace("\'", "''", $search_author) . "'";
                                if ( !($result = $db->sql_query($sql)) )
                                {
                                        message_die(GENERAL_ERROR, "Couldn't obtain list of matching users (searching for: $search_author)", "", __LINE__, __FILE__, $sql);
                                }
*********************************************

Not sure if this is anything, but it seems to be running in the sql and erroring.

Thanks for your time,
jtm