From Wireshark we can see in the Info -column, that it contains all the keys of the handshake, stated with Message 1 of 4 , Message 2 of 4 and so on. Unfortunately Wireshark is unable to show us the key from the first login session.
But now we will move on into the actual cracking part. So as we stated before, dictionary attack relies on having a likely password pre-written in the list. Kali ships out of the box many password lists, but for this excessive we chose to use a nmap.
You may use any password list you want, but keep in mind that the list has to have the same word written in the list for this to work. You can see how many password lists are just in the metasploit folder by typing the following command:. The crack tool will compare the four-way handshake with the password list to find out the correct password. Type in the following command to initiate the crack:. Now the aircrack will start working on the password list and see if any word on the list matches with the pcap file.
And the key was found! Keep in mind that if the word is not pre-written in the password list this wont work. With Aircrack-ng, everytime you time to crack a Wi-Fi network with the dictionary attack, it uses processing power during the attack. If you use a massive dictionary list with numerous different password phrases, this might take a while.
You can test the list without downloading it by giving SHA hashes to the free hash cracker. Here's a tool for computing hashes easily. Here are the results of cracking LinkedIn'sand eHarmony's password hash leaks with the list. Using thelist, we were able to crack Note: To download the torrents, you will need a torrent client likeTransmission for Linux and Mac , or uTorrent for Windows.
I got some requests for a wordlist with just the 'real human' passwords leakedfrom various website databases.
This smaller list contains just those passwords. There are about 64 million passwords in this list! You are allowed to share these lists! If you do share them, I wouldappreciate it if you included a link to this page. Wpa2 dictionary file keyword after analyzing the system lists the list of keywords related and the list of websites with related content, in addition you can see which keywords most interested customers on the this website. Once you have captured this handshake, you can run an offline dictionary attack and break the key.
This is particularly disturbing, because it would only take an attacker but a few moments to drive by a wireless access point and capture a single handshake, then go crack the key at their own leisure. The question arises: How do you capture a 4-way TKIP handshake without sitting and watching traffic for hours and hours, waiting for a client to connect to a network? The solution is simple. By watching a wireless network to see which computers are already authenticated using services, you can forcefully deauthenticate those clients and force them to reconnect back up.
In the process of re-exchanging the encrypted WPA key, you will capture a handshake. The WPA attack does not work on wireless networks which have no clients connected to it. In order to forcefully capture a 4-way handshake, you will need to deauthenticate a client computer that is actively using services, forcing it to exchange the WPA key and in turn capturing the handshake that can be decrypted. Try testing this on your own network with 1 or more computers connected and see just how easily this can be accomplished.
In this example, we used an Intel IGN card, and all the commands issued are given in quotes, with the result of the commands being listed in grey.
After each step, a screenshot is given so you may compare your outputto what should be happening. Please note that not all the screenshotscontain the exact same data which is given in the example, they aremerely for reference purposes. Tools you will need to accomplish this task: System with aircrack-ng installed, or a Backtrack 3 CD Wireless network encrypted with a WPA passphrase your own that you can test Network card that supports packet injection, such as an Intel IGN based device Basic Linux networking skills and command line capabilities A cold beer Step 1: Put the interface in monitor mode.
Assuming you are booted up and ready to go, you'll need to put the interface in monitor mode and get ready to start dumping packets from your target network. If you don't know these values, refer to the 'Aircrack-ng against WEP' tutorial which shows you how to scan and determine this information. Put the network card in monitor mode and get ready to watch some handshaking. Step 2: Start capturing traffic for the target access point and prepare to deauthenticate a client.
You need to start dumping all the packets in order to capture a 4-way handshake for the target network. You can do this by telling airodump-ng exactly which channel to listen on, and to filter out all other wireless devices besides the one you are testing. It would also be wise to pass the '--showack' flag so that way you can ensure your client computer is acknowleding your request to deauthenticate it from the wireless access point. Start dumping all packets going to and from the target wireless access point, and be sure to leave this window open and running.
In the example screenshot, you can see all the related information for the target access point.
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