How to crack the password wifi (wireless) or how to bypass WPA, and WEP with BackTrack WPA2.
Hi friends, today's tutorial we will continue to wireless security that we talked about and n last tutorialToday I will show you how easy it is to break the security of a wireless network, whether we WEP, WPA or WPA2.
For this tutorial we prepared a USB stick with BackTrack distribution, you can also use a live CD. BackTrack is an operating system that contains a lot of tools for monitoring and audit, in our case we detect and exploit vulerabilitatile a wireless network (my network).
Reaver is already installed on BackTrack and is the tool that will help us to get the key, pin and SSID of the network that we want to connect. Basically Reaver uses a vulnerability present on most routers and access points certified WPS (Wireless Protected Setup).
GAsiri Wi-Fi or guessed password Wireless password.
Brute Force Reaver using the application trying different combinations to discover pin WPS vulnerability comes from the fact that Reaver discover first four digit pin then he will try to find these 4 figures. If we think it is much easier to chicest two groups with a total of 20.000 (9999 each group) than trying serial 99.999.999 combinations of possible combinations.
The vulnerability is that somehow validates the router first four digits of the pin.
What are the orders?
airmon-ng for detecting plaque or wireless network card
airmon-ng start wlan0 or
wlan1 depending on how many NICs are in and want to use it, get in the way monitoring board
wash them mon0 for detecting wireless networks, if you receive the error "Found dab packet with FCS, skipping ..." try to use the command
--ignore-FCS wash them mon0
Reaver them mon0 -b "Here are getting BSSID"
0 -vv -d
Now not only have to have patience, minutes, hours or ... ..
How do we defend ourselves from such attacks?
Simply disable WPS (TP-Link is called QSS) of the router, it comes factory-enabled router to obtain certification for WPS.
To see something certified "experts" is always open a door for hackers ...
For the lazy:
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by Cristian Cismaru