Experimental Evaluation of LDoS Attacks on QUIC

QUIC has been used as a new standard commu-nication protocol and as an alternative to TCP. This protocol has the retransmission control algorithm and congestion control algorithm similar to the TCP's functions. Thus, it can be consid-ered that it is possible to exploit these functions for Low-rate DoS (LDoS) attacks. We aim to identify the existence of vulnerabilities that could be exploited by LDoS attacks and propose a new LDoS attack method on QUIC communications. Based on the hypothesis that LDoS attack methods for TCP are effective against QUIC communications, we performed simulation experiments with LDoS attacks against QUIC communications using the TCP-targeted method to verify the effectiveness of the attacks. We verified the factors of successful LDoS attacks on QUIC communications, proposed an LDoS attack method for QUIC communications, and evaluated the proposed LDoS attack.