Now we can hasten our attack! Step 5: Inject ARP Traffic As we can see at the bottom of the screenshot, someone has connected to the "wonderhowto" AP. When we have their MAC address, we can spoof their MAC and inject packets into their AP. We now need to wait for someone to connect to the AP so that we can get the MAC address from their network card. This command alone will now allow us to capture packets in order to crack the WEP key, if we are VERY patient.īut we're not patient, we want it now! We want to crack this key ASAP, and to do that, we will need to inject packets into the AP. This will start capturing packets from the SSID "wonderhowto" on channel 11 and write them to file WEPcrack in the pcap format. Third, if you use torrents to download large files, you can use someone else's bandwidth, rather than your own. Second, once you hack the Wi-Fi router, you can decrypt their traffic and use a sniffing tool like Wireshark or tcpdump to capture and spy on all of their traffic. Now, you might be asking yourself, "Why would I want to hack Wi-Fi when I have my own Wi-Fi router and access?" The answer is multi-fold.įirst, if you hack someone else's Wi-Fi router, you can navigate around the web anonymously, or more precisely, with someone else's IP address. If we can capture enough of the IVs, we can decipher the key! The implementation of RC4 in WEP repeats that IV about every 6,000 frames. WEP uses RC4 for encryption, and RC4 requires that the initialization vectors (IVs) be random. The flaws in WEP make it susceptible to various statistical cracking techniques. Apparently, a number of home users and small businesses bought their APs years ago, have never upgraded, and don't realize or don't care about its lack of security.
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