|COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring.|
Hiding on an Ethernet
If you have a question about this talk, please contact Saar Drimer.
Traceability on the Internet is the process of determining who was using a particular IP address at a particular time. In this talk I will show how fuzzy this idea becomes at the edges of the network when users are on an Ethernet — a broadcast medium — where the notion of identity becomes a matter of agreement rather than immutable fact. The hacker community has long known about ARP spoofing; but I’ve found a new trick. As a part of my PhD work I built some hardware that permitted one machine to borrow someone else’s IP address and Ethernet MAC address and thereby impersonate them, even when they were actively using their machine. Then, by chance, I found that I’d taken far too complicated an approach — and modern software firewalls, that are supposed to make you more secure — permit others to impersonate you with impunity. This has significant implications not only for traceability, but also for the builders of NATs, and especially for the business models of those who overcharge for their WiFi hotspots.
This talk is part of the Computer Laboratory Security Seminar series.
This talk is included in these lists:
Note that ex-directory lists are not shown.
Other listsThe National Trust for Scotland CU Israel Society Cancer Research UK Cambridge Institute seminars
Other talksUnder pressure: Environmental stressors alter relationships between physiology and behaviour in fishes Ocean Wave Measurements: The Challenges and Consequences for the Wave Energy Industry Viral infections in the immunocompromised host Validity unpacked Overview of cancer theoretical framework FsLab: Doing data science with F#