PGP Signing Session

• Peter Losher (ISC)

Room: Komatke G

DNSViz - Monitoring, Analysis, and Visualization

• Casey Deccio (Sandia National Laboratories)

Room: Komatke E/F DNSViz was developed for the purpose of analyzing, reporting, monitoring, and visualizing DNS zones, particularly for DNSSEC. It has primarily been used for analysis and troubleshooting of DNSSEC deployment. Although it is several years old, it is still undergoing changes to incorporate additional enhancements in the way of functionality, stability, and historical archival. We describe the current state of the DNSViz platform and architecture and community involvement in its future.

DNS workbench update

• Antoin Verschuren (SIDN)

Room: Komatke E/F SIDNLabs has a DNS workbench (http://workbench.sidnlabs.nl/) open to the world to test DNS cornercases or bugs on a variety of nameserver software. This talk will give an update on new features, software and results of the DNS workbench, and invites other DNS experts to supply us with feedback on features they would like to be able to test on the SIDNLabs DNS workbench.

Introducing Hedgehog

• Dave Knight (ICANN)

Room: Komatke E/F Hedgehog is a replacement for DSC, developed for ICANN by Sinodun Internet Technologies Ltd. It's development was motivated by a need to match the growing deployment of the L root nameserver. ICANN intends to release Hedgehog under a free software license.

OARC Systems Update

• William Sotomayor (DNS-OARC)

Room: Komatke E/F As part of the OARC Development Plan, Q2 and Q3 of 2013 have seen significant rationalization, upgrade and development of OARC's Systems and Services. This presentation in conjunction with the OARC Infrastructure Plan details the changes and improvements made to date and planned for the future.

Analysis of DITL root data and comparison with jp data

• Kazunori Fujiwara (Japan Registry Services Co., Ltd)

Room: Komatke E/F The number and characteristics of full resolvers are presumed in analyzing DITL data and JP packet capture data. This report presents number of IP addresses which send root DNSKEY queries, EDNS0 queries, DO queries, non-existing name queries, JP queries, updates, and others. Then, it compares root data and JP data.

An Open Resolver view of the New York Times Very Bad Day

• Duane Wessels (Verisign)

Room: Komatke E/F The New York Times suffered a high-profile attack to its domain name via a compromised DNS registrar. Within 6 hours of the attack we initiated an "open resolver scan" of the IPv4 Internet, asking for the address nytimes.com. The results highlight the difficulties faced by organizations trying to purge incorrect data from DNS caches around the Internet.

Blocking DNS Messages is Dangerous

• Florian Maury (ANSSI/FNISA)

Room: Komatke E/F Internet entities are regularly affected by Distributed Denial of Service (DDoS) on various scales. Several methods can be leveraged to perform such attacks, but the most recent incidents were caused by throughput amplification via DNS servers. Improving the overall security of the French segment of the Internet is one of the missions of ANSSI (the French Network and Information Security Agency), which has led us to perform an analysis of the various DDoS mitigation techniques available to DNS operators. This research work shows that some of the most popular anti-DDoS strategies, currently deployed by prominent actors of the DNS community, could, under certain circumstances, make DNS cache poisoning attacks much easier, most often resulting in successful attacks taking less than a day.

Herzberg/Shulman IP Fragmentation Attack

• Ondrej Sury (CZ.NIC)

Room: Komatke E/F Amir Herzberg & Haya Shulman has presented a new DNS vulnerability based on IP fragmentation. This presentation will dive into the practical aspects of implementing working PoC as done by CZ.NIC Labs and other parties.

A Question of DNS Protocols

• Geoff Huston (APNIC)

Room: Komatke E/F There has been some recent interest in the use of TCP for DNS queries as a means of mitigating some of the issues with DNS reflection attacks. However, it is not clear how many clients use DNS resolvers that are capable of asking queries using TCP. This presentation reports on a large scale exercise of presenting clients with DNS names whose resolution generated a truncated UDP response from the authoritative name server, and measuring the number of clients who were capable of performing the query using TCP. The presentation also looks at the performance issues this raises in terms of time to resolve a name, as measured in this experiment.

Needles in a Quadrillion-Straw Haystack

• Sam Bretheim (Nominum)

Room: Komatke E/F We describe the construction of Nominum's system for large-scale analysis of DNS security data, some of the challenges involved in building that system, and some interesting things that we've found in the data. Particular points of interest include malware command-and-control detection and classification, detection of vulnerabilities and bugs in widespread DNS implementations, and a mysterious global pattern of unusual machine-generated queries.

DNS: Useful tool or just a hammer?

• Paul Ebersman (Infoblox)

Room: Komatke E/F The DNS has become a piece of the critical infrastructure of the internet; without it most users would be unable to do anything. However, both the scale of use and how it's being used (and abused) were not things imagined when the DNS was originally designed. This tutorial will go over various threats to your servers, how to mitigate these threats, information on how the DNS is being abused in DDOS attacks and how you can help to not be part of the problem.