aircrack-ng filename.pcap Cracking WPA/WPA2 To have aircrack-ng conduct a WEP key attack on a capture file, pass it the filename, either in. We then need to analyze the captured IV and crack the key. The problem here is that if the network is not busy, it would take some time to capture the IVs. We first need to capture a large number of packets so that we can get enough IVs and store it in a file. And this is the vulnerability we are going to use, Repeated IVs can be used to determine the keystream, and ultimately break the encryption. The catch here is that the IVs are repeated in a busy network.
The use of short keys reduces the encryption strength because short keys are easy to break, Also it uses an algorithm called RC4 that is deprecated.
For encryption, Wired Equivalent Privacy (WEP) can use only a 64-bit or 128-bit number, which is made up of a 24-bit Initialization Vector (IV) and a 40-bit or 104-bit default key. The flaw that we are targeting is Initialisation Vectors( IV), these IVs are 24 bits long. WEP(Wired Equivalent Privacy) is a Wi-Fi security protocol, its intention was to provide data confidentiality comparable to that of a traditional wired network. This mode enables packets to be captured without having to connect or link with an access point. Monitor mode allows the adapter to view and monitor all the traffic received from the wireless network.
#INSTALL AIRCRACK WORDLISTS UBUNTU PC#
The reason we have to use an external adapter is that the inbuilt adapter that comes along with the PC doesn’t support monitor mode and packet injection. The first thing that we need to have to successfully attack, audit a network is a Wi-Fi adapter that has monitor mode and allows packet injection. The attacks are to be performed by obtaining the consent of the owner or only on those networks that are owned by you. The attacks range from Wifi Disconnection to obtaining handshakes to cracking passwords.
#INSTALL AIRCRACK WORDLISTS UBUNTU INSTALL#
It can be installed by using the following command on the terminal: sudo apt-get install aircrack-ng Aircrack-ng is used by learning individuals and security professionals to test the security, reliability of wireless networks. It is also used for cracking the WEP and WPA/WPA2-PSK keys for gaining access to a network. Aircrack-ng is a Wi-Fi security auditing tool specifically 802.11 WEP and WPA/WPA2-PSK.
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