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Re: ATutor 1.5.3 Cross Site Scripting
From: "Steven M. Christey" <coley () mitre org>
Date: Fri, 21 Jul 2006 18:00:01 -0400 (EDT)


The mentioned SQL injection vulnerability is not possible. Please
remove it.

Could you explain this further?

In 1.5.3, edit_forum() in forums.inc.php has the following:

        $sql    = "UPDATE ".TABLE_PREFIX."forums SET title='$_POST[title]', description='$_POST[body]' WHERE 
forum_id=$_POST[fid]";
        $result = mysql_query($sql,$db);

where is appears that $_POST[fid] is directly inserted into the SQL
query.

In 1.5.3.1, a new statement has been added to the same function, just
before the two statements above:

        $_POST['fid']    = intval($_POST['fid']);

This looks like cleansing that would be relevant for SQL injection.


For those who were wondering, both $_POST['title'] and $_POST['body']
are re-set using addslashes:

  $_POST['title']  = $addslashes($_POST['title']);
  $_POST['body']   = $addslashes($_POST['body']);


- Steve


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