Re: Form Handler Script Security Discussion

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Many legitimate users will have their referrer blocked by proxies or by browser preference so you'll also have false negatives.

Arpad

cajbecu wrote:
<?
   if($_POST && eregi(getenv("SERVER_NAME"),getenv("HTTP_REFERER"))) {
       // This is a safe POST
   } elseif(!eregi(getenv("SERVER_NAME"),getenv("HTTP_REFERER"))) {
       die("Illegal access.  Your IP has been logged.\n");
   }
?>


it is not safe. i can use curl (www.php.net/curl) and modify the referer
of my script to pass this security check. i advise you to add image code
to the form and check that in your script. that will stop the attackers
insert lot of data in your database.


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