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Hack WPA2-PSK clients with Key Re-installation Attacks




Mathy Vanhoef discovered serious weaknesses in WPA2, a protocol that secures all modern protected Wi-Fi networks. An attacker within range of a victim can exploit these weaknesses using key reinstallation attacks (KRACKs). Concretely, attackers can use this novel attack technique to read information that was previously assumed to be safely encrypted. This can be abused to steal sensitive information such as credit card numbers, passwords, chat messages, emails, photos, and so on. The attack works against all modern protected Wi-Fi networks. Depending on the network configuration, it is also possible to inject and manipulate data. For example, an attacker might be able to inject ransomware or other malware into websites.
The weaknesses are in the Wi-Fi standard itself, and not in individual products or implementations. Therefore, any correct implementation of WPA2 is likely affected. To prevent the attack, users must update affected products as soon as security updates become available. Note that if your device supports Wi-Fi, it is most likely affected. During initial research,it is discovered that Android, Linux, Apple, Windows, OpenBSD, MediaTek, Linksys, and others, are all affected by some variant of the attacks. For more information about specific products, consult the database of CERT/CC, or contact your vendor.
Below is the detail of some router vendors that have issued KRACH Patches
the best way to protect yourself from this exploit is to not use Wi-Fi at all until a proper fix has been proven. CERT has released notes on the KRACK problem, including a list of vendors whose equipment is vulnerable.
Some security-minded companies have already worked on fixes and are offering patches. Check back often, as we will keep this list updated.
There are also a number of vendors listed as "Not affected" on the CERT website without further explanation from the vendors themselves. These include:




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