Cracking Wep Wpa Wpa2 Wifi Aircrack. For Mac
WEP has been deprecated since early 2001, WPA was introduced as an industry standard, which used TKIP for encryption of data. Later, WPA2 became an industry standard since it introduced AES encryption, which is more powerful than TKIP; however, it also supports TKIP encryption. The WPA/WPA2 key that we would use to authenticate on a wireless network is used to generate another unique key. Five additional parameters would be added to our key to generate a unique key. The parameters are the SSID of the network authenticator, Nounce (ANounce), supplicant Nounce (SNounce), authenticator MAC address (access point MAC), and suppliant MAC address (WiFi client MAC).
From a hacker’s perspective, we can use a brute force or dictionary attack or rainbow tables to crack a WPA/WPA2 network, obviously a dictionary attack is much less time consuming than other attacks; therefore it should be your first preference. The success rate of this attack depends upon the wordlist you would use. Another requirement for this attack to work is the four-way handshake, which takes place between a client and an access point, which we will capture using the deauthentication attack. Let’s see how we can use to crack a WPA/WPA2 network. Capturing Packets Step 3—Next, we need to save the data associated with our access point to a specific file. The inputs we need to specify are the channel, the bssid, and the file name to write.
Command: airodump-ng –c 1 –w rwap –bssid F4:3E:61:92:68:D7 mon0 ◾ –w—File to write ◾ –c—Channel Capturing the Four-Way Handshake Step 4—In order to successfully crack WAP, we would need to capture the four-way handshake. As mentioned, to achieve this we could use a deauthentication attack to force clients to disconnect and reconnect with the access point. Structure aireplay-ng –deauth 10 –a ≤Target AP≥ –c ≤Mac address of Mon0≥mon0 Command: aireplay-ng –deauth 10 –a F4:3E:61:92:68:D7 –c 94:39:E5:EA:85:31 mon0 After we have successfully performed a deauthentication attack, we will be able to capture the four-way handshake. Cracking WPA/WAP2 Now that we have all the inputs required for cracking the WPA/WPA PSK, we will use aircrackng and specify a wordlist that would be used against the rhawap.cap file that was generated earlier.
Remember that in order for us to successfully crack the WPA/WPA2 PSK, we need to make sure that our file contains the four-way handshake. Structure aircrack-ng –w Wordlist ‘capturefile’.cap Command: aircrack-ng rhawap.cap –w/pentest/passwords/wordlists/darkc0de.lst So, now this will start the dictionary attack against the rhawap.cap file, and if the key is found in the dictionary, it will reveal it to us.
:# airodump-ng mon0 Note that mon0 might be mon1, mon2 or mon3 etc. Depending upon the number of monitoring mode already running on your system.
Now from here, the steps for hacking WEP and WPA2 (or WPA) are slightly different. Cracking WEP Key on Kali Linux I hope, till here airodump-ng is successfully running for you. Now, you have to choose a target (In my case, it’s ESSID: HIMANSHUNEGI.ORG, channel: 4 and bssid: 0C:D2:B5:03:43:68). You should choose an AP that you had created as taught in Capturing Key HIMANSHUNEGI.ORG is using WEP Security right now.
We’ll begin by capturing its IVS packets which usually have encrypted password. The command for this is as follows. :# airodump-ng –w HIMANSHUEGI.ORG –c 4 –bssid 0C:D2:B5:03:43:68 –ivs mon0 Let me explain the command to you:.w is for writing to file i.e. HIMANSHUNEGI.ORG (a new file will be created with this name with a postfix -01 or -02 if HIMANSHUNEGI.ORG-01 already exist).c is used for channel (CH) which in our case is 4. –ivs tells to capture only ivs packets. mon0 is current monitoring mode we are interested in using. Now, wait for few minutes until you capture 10,000+ ivs packets (the more, the better).
As already mentioned in prerequisite article, time duration will be much lesser if good amount of data is being transferred over network and access point is close (good signal strength). If there is no activity on the WiFi network then you won’t be able to capture enough packets. But, you can always try to de-authenticating clients from AP in order to generate data packets, try any of the following command. :# aireplay-ng -0 5 -a 84:1B:5E:50:C8:6E -c 88:53:2E:0A:75:3F mon0 Let me explain the command to you:.0 is for de-authentication. 5 indicates number of packets to be send.a is bssid of HIMANSHUNEGI.ORG.c is the client we want to de-associate! Run any of the above aireplay-ng command for few seconds and stop it (using Ctrl+C). Hopefully, it’ll generate some data packets; repeat the process until you have at least 10K IVS packets.
Cracking Key When you have enough packets captured, you can try cracking WEP key of the WiFi network. :# aircrack-ng HIMANSHUNEGI.ORG-01.cap Notice that the file name got changed, this program automatically appends -01, -02, -03 etc. To the file name. It depends upon the no. Of file with the same name exists. After a couple of minutes you will find the password. The WEP key (password in hex representation) is and ASCCI value is 97556.
Both will work fine as password. Troubleshooting: If you were unable to repeat this whole WiFi hacking process, there might be following reasons:. You had typed wrong command or passed incorrect values (such as incorrect channel number, bssid or anything). You might not have captured enough ivs packets (collect at least +10,000). There is possibility that your wireless card is not working properly. In this case, get an external WiFi adapter (mentioned in prerequisite article).
Hacking WPA or WPA2 WiFi Kali Follow, the common Aircrack-ng steps till airodump-ng command. Now, we have to choose a target (In my case, it’s ESSID: HIMANSHUNEGI.ORG, channel: 4 and bssid: 0C:D2:B5:03:43:68). You should choose an AP that you had created as taught in NOTE: Steps for hacking WPA or WPA2 WiFi using aircrack-ng are same. Capturing Handshake Now, HIMANSHUNEGI.ORG is using WPA2 Security. Our aim is to capture handshake packets which will have encrypted password.
The command for this is as follows. :# aircrack-ng HIMANSHUNEGI.ORG-01.cap –w /root/dictionary/rockyou.txt Notice that the file name got changed, this program automatically appends -01, -02, -03 etc. To the file name.
It depends upon the no. Of file with the same name exists. Countermeasures: Secure your WiFi You should always focus on auditing (and tightening) your own WiFi security (instead of going Jail for hacking someone’s WiFi). Following are some security tips to protect your WiFi:. Never choose WEP Security for WiFi. You should only choose WPA or WPA2 Security. Don’t enable WPS security option as it’s vulnerable to WPS Pin Attack. Google for WPS CVE (Common Vulnerabilities and Exposures).
Always choose a strong password. Change your WiFi password periodically (every week or month).
Cracking Wep Wpa Wpa2 Wifi Aircrack. For Mac
Even if someone gets your WiFi’s password somehow, then they shouldn’t be able to enjoy it for longer. Finally, try to audit your own wireless security.
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