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[dns-wg] New on RIPE Labs: NXNSAttack: Upgrade Resolvers to Stop New Kind of Random Subdomain Attack

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Mirjam Kuehne mir at ripe.net
Wed May 20 16:43:18 CEST 2020

Dear colleagues,

This article by Petr Špaček of CZ.NIC describes a newly discovered DNS
protocol vulnerability that affects all recursive DNS resolvers.
NXNSAttack allows the execution of random subdomain attacks using the
DNS delegation mechanism, resulting in a big packet amplification factor.

Please read more about this on RIPE Labs:

https://labs.ripe.net/Members/petr_spacek/nxnsattack-upgrade-resolvers-to-stop-new-kind-of-random-subdomain-attack

Kind regards,
Mirjam Kühne
RIPE NCC

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