Presentation 2021-01-22
[Encouragement Talk] A Study on Detection and Prevention of Stealthy DNS Water Torture Attack
Keita Hasegawa, Daishi Kondo, Hideki Tode,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) A distributed denial-of-service (DDoS) attack is a major social problem. As one of the actual attacks, Dyn DNS, the Domain Name System (DNS) provider used by many well-known sites, was subjected to a DNS DDoS attack in 2016, causing these well-known sites to become inaccessible. This paper tackles the DNS water torture attack used in this cyberattack on Dyn DNS as a DDoS attack model. To perform a DNS water torture attack, attackers create a large number of unique fully qualified domain names (FQDNs) with a random label attached to the targeted domain, and then send the attack DNS queries to the targeted authoritative DNS server via DNS cache servers, which brings down the authoritative DNS server. This paper proposes an effective detection and prevention method against stealthy DNS water torture attack that is difficult for attack source side to detect, which quickly detects the occurrence of the attack on the targeted side and performs effective prevention on the attack source side.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) DNS DDoS / DNS water torture attack / FQDN-based whitelist filter
Paper # NS2020-116
Date of Issue 2021-01-14 (NS)

Conference Information
Committee NS
Conference Date 2021/1/21(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English) Network software (Software architecture, Middleware), Network application, SOA/SDP, NGN/IMS/API, Distributed control/Dynamic routing, Grid, NFV, IoT, Network/System reliability, Network/System evaluation, etc.
Chair Akihiro Nakao(Univ. of Tokyo)
Vice Chair Tetsuya Oishi(NTT)
Secretary Tetsuya Oishi(NTT)
Assistant Shinya Kawano(NTT)

Paper Information
Registration To Technical Committee on Network Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Encouragement Talk] A Study on Detection and Prevention of Stealthy DNS Water Torture Attack
Sub Title (in English)
Keyword(1) DNS DDoS
Keyword(2) DNS water torture attack
Keyword(3) FQDN-based whitelist filter
1st Author's Name Keita Hasegawa
1st Author's Affiliation Osaka Prefecture University(Osaka Pref. Univ.)
2nd Author's Name Daishi Kondo
2nd Author's Affiliation Osaka Prefecture University(Osaka Pref. Univ.)
3rd Author's Name Hideki Tode
3rd Author's Affiliation Osaka Prefecture University(Osaka Pref. Univ.)
Date 2021-01-22
Paper # NS2020-116
Volume (vol) vol.120
Number (no) NS-327
Page pp.pp.31-36(NS),
#Pages 6
Date of Issue 2021-01-14 (NS)