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Lock your interface on the same channel as your target:Īirodump-ng -c -bssid -w capture-file See the Fluhrer, Mantin and Shamir attack. Sniffing enough traffic enables an attacker to crack the key. The design of WEP violates this assumption and repeats them quite often: IVs of standard WEP are 24 bits long (this gives a space of 2 24), the maximum length of an IP datagram sent over an Ethernet is 1500 octets (sic rfc894), 802.11g’s maximum speed is 54Mbps, so by the pidgeon hole principle we will have a repetition after at most (2 24 + 1) * (1500 * 8) / (54*10 6) seconds, so roughly 1 hour. WEP uses RC4 keys. RC4 requires a random or pseudo-random initialization vectors (IVs). The great weakness of WEP is its use of static keys: they have to be set manually, and both the AP and every connected client have the same key to encrypt traffic. WEP was used from 1997 to 2003 until it was deprecated due to its weak security. Ifconfig down & macchanger -m 00:20:91:11:22:33 wlan0mon & ifconfig wlan0mon up Figure 2: changing your MAC address WEP – Wired Equivalent Privacy It displays a list of detected access points (APs – the ones we will attempt to gain access to) and a list of connected clients, or stations (STA – phones, laptops, etc… connected at this moment to an AP). Put your card in monitor mode and scan for APs and connections with airodump-ng:įind out the interface name of your adapter using ifconfig and start it in monitor mode open a terminal and type the following commands:Īirodump-ng should yield an output like this: Figure 1: example of airodump-ng results Run the VM and physically unplug/replug and you should be good to go.
#Kali linux wpa2 hash type plus
To make your adapter usable in VirtualBox, go to the settings and choose USB. Now add your device with the plus button on the right. Before buying one, verify that it is compatible with Kali.