Wi-Fi vulnerability threatens wireless availability

WinNetMag | at | by Mike

Students at a university in Australia have discovered a flaw in 802.11 (Wi-Fi) wireless networks that would allow a hacker to effectively shut down any wireless network using a Denial of Service (DoS)-like attack. The PhD students, who hail from the Queensland University of Technology Information Research Centre, say that the Collision Avoidance (CA) feature of Wi-Fi networks which follow the IEEE's standardized 802.11 protocol is to blame. They were studying ways to prevent Wi-Fi-based attacks when they discovered the flaw.