Detection of Fabricated CTS Packet Attacks in Wireless LANs
IEEE 802.11 standard employs the RTS/CTS handshake procedure to avoid transmission collision and to improve network throughput. However, such an exchange may become a system vulnerability when malicious nodes send fabricated control messages such as CTS to make false claims of channel reservation. To the best of the authors' knowledge, there exists no systematic detection technique for such fabricated control messages. In this paper, they investigate the adverse effects of such attacks on channel throughput and delivery ratio. In order to mitigate these effects, they propose an approach to detect the fabricated messages.