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Magnet Networks Tesley CPVA 642 Router - Weak WPA-PSK Passphrase Algorithm
[# Exploit Title: Magnet Networks – Weak WPA-PSK passphrases used in Tesley CPVA 642 Router # Google Dork: # Date: 01/06/2016 # Author: Matt O'Connor # Advisory Link: https://www.rgb.ie/magnet-broadband-weak-wpa-psk-algorithm.pdf # Version: # Category: Remote # Tested on: Magnet Networks Tesley CPVA 642 The Tesley CPVA 642 routers supplied by Magnet Networks are vulnerable to an offline dictionary attack if the WPA-PSK handshake is obtained by an attacker. The WPA-PSK pass phrase has the following features: • Starts with MAGNET0 • Adds six random numerical digits • 1 million possible combinations ( MAGNET0000000 – MAGNET0999999 ) The entire keyspace can be generated using “mask processor” by ATOM, piping each letter out to its own file, for example: ./mp32 MAGNET0?1?1?1?1?1?1 > magnet_networks_tesley_ks.txt The .txt file weighs in at around 45mb. Using a 1.4ghz i3 processor on a budget laptop, we were hitting 1,000 keys per second. Breakdown below: • 1,000,000 / 1,000 keys per second = 1,000 seconds • 1,000 / 60 seconds = 16~ minutes The WPA-PSK handshake we used has the password MAGNET0349325 and was cracked within ~6 minutes. If you’re using the default password on your Magnet Networks Tesley CPVA 642 Router, we recommend changing it immediately to a more secure password, using a mix of letters, numbers and symbols. On the 20th of June 2016, Magnet Networks Customer Care confirmed via email that these routers are not used by Magnet Networks anymore. # 0day.today [2024-12-24] #