[PHP-DEV] PHP 4.0 Bug #9767: Can set environment variables in the query string. From: toastyghost_ <email protected>
Date: 03/15/01

From: toastyghost_ <email protected>
Operating system: Red Hat
PHP version: 4.0.4pl1
PHP Bug Type: Feature/Change Request
Bug description: Can set environment variables in the query string.

/* this is a security measure that only permits the display of the page if the referer is within the same domain as the page... if you run it with HTTP_REFERER=HTTP_HOST or a string of the host url in the query string or post a form input object called HTTP_REFERER with value of host url, it produces the same effect as if you had clicked on a link from within the site */

<?
  $referer = parse_url($HTTP_REFERER);

  if($referer[host]!='mydomain.com') die ('invalid host');
  else{echo '<html>this is my page!!</html>';
?> 

-- 
Edit Bug report at: http://bugs.php.net/?id=9767&edit=1

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