“KRACK” WiFi Exploit Affects Every WiFi Device Out There

This isn’t good. There’s a exploit that affects any device that uses WiFi and the WPA2 security protocol. Dubbed “KRACK” or Key Reinstallation Attack, it is scary for this reason:

The bug, known as “KRACK” for Key Reinstallation Attack, exposes a fundamental flaw in WPA2, a common protocol used in securing most modern wireless networks. Mathy Vanhoef, a computer security academic, who found the flaw, said the weakness lies in the protocol’s four-way handshake, which securely allows new devices with a pre-shared password to join the network.

That weakness can, at its worst, allow an attacker to decrypt network traffic from a WPA2-enabled device, hijack connections, and inject content into the traffic stream.

In other words: hackers can eavesdrop on your network traffic.

This affects everything from your iPhone to the debit card machine in a restaurant, not to mention IoT devices. That’s not good. Here’s what’s worse. Patches are slowly rolling out now. But it’s an open question as to when a device might get a patch. Assuming that it gets one at all. So you may end up with a device that never gets patched and is at risk for pwnage via this exploit. Hopefully device manufacturers get it in gear and protect their users quickly.

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2 Responses to ““KRACK” WiFi Exploit Affects Every WiFi Device Out There”

  1. […] running the latest and greatest, or at least the still supported from either Apple or Microsoft. That rather nasty WiFi vulnerability that I told you about this morning has already been fixed. Apple has disclosed via MacRumors that […]

  2. […] first reason is that all these updates have a fix for the rather serious KRACK vulnerability where hackers could exploit a flaw in the WPA2 protocol to decrypt network traffic to sniff out […]

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