Presented at
Black Hat USA 2016,
Aug. 3, 2016, 10:20 a.m.
(50 minutes)
The meteoric rise of SPDY, HTTP/2, and QUIC has gone largely unremarked upon by most of the security field. QUIC is an application-layer UDP-based protocol that multiplexes connections between endpoints at the application level, rather than the kernel level. HTTP/2 (H2) is a successor to SPDY, and multiplexes different HTTP streams within a single connection. More than 10% of the top 1 Million websites are already using some of these technologies, including much of the 10 highest traffic sites. Whether you multiplex out across connections with QUIC, or multiplex into fewer connections with HTTP/2, the world has changed. We have a strong sensation of Déjà vu with this work and our 2014 BlackHat USA MPTCP research. We find ourselves discussing a similar situation in new protocols with technology stacks evolving faster than ever before, and Network Security is largely unaware of the peril already upon it. This talk briefly introduces QUIC and HTTP/2, covers multiplexing attacks beyond MPTCP, discusses how you can use these techniques over QUIC and within HTTP/2, and discusses how to make sense of and defend against H2/QUIC traffic on your network. We will also demonstrate, and release, some tools with these techniques incorporated.
Presenters:
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Carl Vincent
- Cisco
Carl is a security consultant within the Cisco Security Solutions (CSS) group, and has spent the majority of his carrier focused on offensive security through various forms. While largely an attack strategist, he has experience within a plethora of technical fields that include but are not limited to physical, network, desktop application, Web application, social engineering, wireless, and red team penetration testing. While much of his work in these areas is still hidden from the world he has presented research at information security events on 5 continents.
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Catherine (Kate) Pearce
- Cisco
Catherine (Kate) Pearce is a Senior Security Consultant for Cisco, who is based in Wellington, New Zealand. Formerly a Security Consultant for Neohapsis in the USA, she has engaged with a widespread and varied range of clients to assist them in understanding their current security state, adding resilience into their systems and processes, and managing their ongoing security risk. Day-to-day she undertakes a mix of advising clients around their security, client-focused security assessments (such as penetration tests), and security research. She has spoken at her work at many security conferences, including Black Hat USA, Source Boston, Nolacon, Kiwicon, ACSC and several others. While she has recently presented on Network Security, her true loves are application security enablement, complex systems security, and cross-discipline security analogues.
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