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Black-box caches fingerprinting

: Klein, Amit; Heftrig, Elias; Shulman, Haya; Waidner, Michael


Han, D. ; Association for Computing Machinery -ACM-; Association for Computing Machinery -ACM-, Special Interest Group on Data Communication -SIGCOMM-:
CoNEXT 2020, 16th International Conference on emerging Networking EXperiments and Technologies. Proceedings : December 1-4, 2020, Barcelona, Spain
New York: ACM, 2020
ISBN: 978-1-4503-7948-9
International Conference on emerging Networking EXperiments and Technologies (CoNEXT) <16, 2020, Online>
Conference Paper
Fraunhofer SIT ()

We propose the first methodologies for remotely inferring and fingerprinting the software of DNS caches in the Internet based solely on the exchange of queries/responses with the DNS platform. Our techniques are robust and cannot be altered in transit, e.g., by firewalls, which does not hold for the existing fingerprinting techniques. In particular, the only way to alter the outcome of our fingerprinting methods is by modifying the DNS software itself.