Bugtraq: Re[2]: Lot of SQL injection on PHP-Nuke 6.5 (secure weblog!)

[Benjamin Schulz <lists () hnc cc>]

Hi Rynho,

> if(!isset($cid) || $cid == NULL || $cid == "" || !is_numeric ($cid))
> {
>     echo "I don't like you >:|";
>     exit();
> }
you know that $cid == NULL equals $cid == ""? (int)0, too btw.
either check $cid == '' (what is 0 & NULL, too)
or $cid === NULL || $cid === '',
or empty($cid)

Mit freundlichen Gruessen / Kind regards
-- 
Benjamin Schulz

There are 10 types of people: those who understand binary and
those who don't.