TsuKing: Coordinating DNS Resolvers and Queries into Potent DoS Amplifiers

We will present a new DNS amplification attack, named TsuKing. Instead of exploiting individual DNS resolvers independently to achieve an amplification effect, TsuKing deftly coordinates numerous vulnerable DNS resolvers and crafted queries together to form potent DoS amplifiers. We will demonstrate that with TsuKing, an initial small amplification factor can increase exponentially through the internal layers of coordinated amplifiers, resulting in an extremely powerful amplification attack…

By: Haixin Duan , Xiang Li , Chaoyi Lu , Wei Xu

Full Abstract and Presentation Materials: https://www.blackhat.com/eu-23/briefings/schedule/#tsuking-coordinating-dns-resolvers-and-queries-into-potent-dos-amplifiers-35441Black HatRead More