Airodump-ng is part of the Aircrack-ng is a network software suite. Specifically, Airodump-ng is a packet sniffer that places air traffic into Packet Capture (PCAP) files or Initialization Vectors (IVS) files and shows information about wireless networks.
Airodump-ng is used for packet capture of raw 802.11 frames and is particularly suitable for collecting WEP IVs (Initialization Vectors) for later use with Aircrack-ng. If you have a GPS receiver connected to the computer, Airodump-ng is capable of logging the coordinates of the found APs. Before running Airodump-ng, start the Airmon-ng script to list the detected wireless interfaces.
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Ncrack is another network logon bruteforcer which supports attacking many different services such as RDP, SSH, http(s), SMB, pop3(s), FTP, and telnet. Ncrack was designed using a modular approach, a command-line syntax similar to Nmap and a dynamic engine that can adapt its behavior based on network feedback.
WPA-PSK is vulnerable to brute force attack. Tools like Aircrack and coWPAtty take advantage of this weakness and provided a way to test keys against dictionaries. The problem is that it's a very slow process. Precomputational attacks are limited as the BSSID and the BSSID length are seeded into the passphrase hash. This is why WPA-PSK attacks are generally limited due by time. There is no difference between cracking WPA or WPA2, the authentication is essentially the same.
The main requirement for any WPA/WPA2 is to capture the authentication handshake and then use Aircrack-ng to crack the pre-shared key. This can be done either actively or passively. "Actively" means you will accelerate the process by deauthenticating an existing wireless client. "Passively" means you simply wait for a wireless client to authenticate to the WPA/WPA2 network.
This stands for the Lightweight Extensible Authentication Protocol. This protocol is based on 802.1X and helps minimize the original security flaws by using WEP and a sophisticated key management system. This EAP-version is safer than EAP-MD5. This also uses MAC address authentication. LEAP is not safe against crackers. THC-LeapCracker can be used to break Cisco's version of LEAP and be used against computers connected to an access point in the form of a dictionary attack. Anwrap and asleap are other crackers capable of breaking LEAP.
The key distribution attack exploits a weakness in the RADIUS protocol. The key distribution attack relies on an attacker capturing the PMK transmission between the RADIUS server and the AP. As the PMK is transmitted outside of the TLS tunnel, its protection is solely reliant on the RADIUS server's HMAC-MD5 hashing algorithm. Should an attacker be able to leverage a man-in-the-middle attack between the AP and RADIUS sever, a brute-force attempt could be made to crack the RADIUS shared secret. This would ultimately provide the attacker with access to the PMK - allowing full decryption of all traffic between the AP and supplicant.
The RADIUS impersonation attack relies on users being left with the decision to trust or reject certificates from the authenticator. Attackers can exploit this deployment weakness by impersonating the target network's AP service set identifier (SSID) and RADIUS server. Once both the RADIUS server and AP have been impersonated the attacker can issue a 'fake' certificate to the authenticating user. After the certificate has been accepted by the user the client will proceed to authenticate via the inner authentication mechanism. This allows the attacker to capture the MSCHAPv2 challenge/response and attempt to crack it offline.
Aircrack-ng is an 802.11 WEP and WPA-PSK keys cracking program that can recover keys once enough data packets have been captured. It implements the standard FMS attack along with some optimizations like KoreK attacks, as well as the all-new PTW attack, thus making the attack much faster compared to other WEP cracking tools.
Airodump-ng is used for packet capturing of raw 802.11 frames and is particularly suitable for collecting WEP IVs (Initialization Vector) for the intent of using them with Aircrack-ng. If you have a GPS receiver connected to the computer, Airodump-ng is capable of logging the coordinates of the found access points.
Aireplay-ng is primarily used to generate or accelerate traffic for the later use with Aircrack-ng (for cracking WEP keys). Aireplay-ng supports various attacks such as deauthentication, fake authentication, Interactive packet replay, hand-crafted ARP request injection and ARP-request re injection. Usage:
Aircrack-ng is an 802.11 WEP and WPA/WPA2-PSK key cracking program. Aircrack-ng can recover the WEP key once enough encrypted packets have been captured with airodump-ng. This part of the Aircrack-ng suite determines the WEP key using two fundamental methods. The first method is via the PTW approach (Pyshkin, Tews, and Weinmann). The default cracking method is PTW.
For cracking WPA/WPA2 pre-shared keys, only a dictionary method is used. SSE2 support is included to dramatically speed up WPA/WPA2 key processing. A "four-way handshake" is required as input. For WPA handshakes, a full handshake is composed of four packets. However, Aircrack-ng is able to work successfully with just 2 packets. EAPOL packets (2 and 3) or packets (3 and 4) are considered a full handshake.
There are two general methods for obtaining the password hashes in Windows. One method is to inject code into the LSASS (Local Security Authority Subsystem Service) process and the other is to extract the hashes from the SAM, system, and security registry hives. Pwdump6, Fgdump, and the hashdump command in Meterpreter use the LSASS injection method and Creddump extracts passwords from the SAM, system, and security hives. Once the hashes have been extracted, you can crack the hashes to obtain the passwords or you can use the hashes in a pass the hash exploit. 2ff7e9595c
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