# Fail2Ban filter for URLs with a URL as a script parameters # which can be an indication of a fopen url php injection # # Example of web requests in Apache access log: # 66.185.212.172 - - [26/Mar/2009:08:44:20 -0500] "GET /index.php?n=http://eatmyfood.hostinginfive.com/pizza.htm? HTTP/1.1" 200 114 "-" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)" [Definition] failregex = ^ -.*"(GET|POST).*\?.*\=http\:\/\/.* HTTP\/.*$ ignoreregex = # DEV Notes: # # Version 2 # fixes the failregex so REFERERS that contain =http:// don't get blocked # (mentioned by "fasuto" (no real email provided... blog comment) in this entry: # http://blogs.buanzo.com.ar/2009/04/fail2ban-filter-for-php-injection-attacks.html#comment-1489 # # Author: Arturo 'Buanzo' Busleiman