How (and why) to better secure your Wi-Fi network
A new series of attacks against almost every Wi-Fi router has been posted called FragAttacks. Anyone who can receive radio signals from your router or Wi-Fi hotspot can use these vulnerabilities and steal data from your devices. The issue is the design of the Wi-Fi protocols themselves, along with programming errors to certain Wi-Fi devices. Some products have multiple issues and a dozen different CVEs have been posted that document them.
The vulnerabilities were discovered by Mathy Vanhoef, who will be back teaching in the fall at KU Leuven University in Belgium and has worked with a team at New York University in Abu Dhabi. The group tested more than 75 different devices and discovered flaws in Wi-Fi protocols going back to the turn of the millennium. He will present papers at various information security conferences this summer. (His presentation at USENIX is already available.)
Vanhoef isn’t new to Wi-Fi exploits: he discovered the Krack attack back in 2017. This uncovered a problem with the WPA2 protocols, which is one of the reasons why you should no longer use them.
The good news is that the protocol design flaws aren’t easy to take advantage of and there hasn’t been a ..
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