Version 1.5b Castle in the Sky
lecture: (In)Security of Embedded Devices' Firmware - Fast and Furious at Large Scale
Embedded systems are omnipresent in our everyday life and are becoming
increasingly present in many computing and networked environments. For example,
they are at the core of various Common-Off-The-Shelf (COTS) devices such as
printers, video surveillance systems, home routers and virtually anything we
informally call electronics. The emerging phenomenon of the Internet-of-Things
(IoT) will make them even more widespread and interconnected. Cisco famously
predicted that there will be 50 billion connected embedded devices by 2020.
Given those estimations, the heterogeneity of technology and application fields,
and the current threat landscape, the security of all those devices becomes of
paramount importance. In addition to this, manual security analysis does not
scale. Therefore, novel, scalable and automated approaches are needed.
In this talk, we present several methods that make *the large scale
security analyses of embedded devices* a feasible task. We implemented
those techniques in a scalable framework that we tested on real world data.
First, we collected a large number of firmware images from Internet
repositories and then performed simple static analysis.
Second, since embedded devices often expose web interfaces for
remote administration, therefore we developed techniques for large scale
static and dynamic analysis of such interfaces.
Finally, identifying and classifying the firmware files, as well as
fingerprinting and identifying embedded devices is difficult, especially
at large scale.
Using these techniques, we were able to discover a large number of new
vulnerabilities in dozens of firmware packages, affecting a great variety of vendors and
device classes. We were also able to achieve high accuracy in fingerprinting and
classification of both firmware images and live devices.
This material is both important and innovative because it addresses the
more and more pressing matter of securing/hacking the IoT, hence the
embedded devices themselves. Moreover, it's envisioned that the topic will
go in the next few years from important to critically important.
This material is definitely innovative because it will provide technical
aspects of security research by combining several interesting
- non-x86 emulation (and the caveats)
- some aspects of static and dynamic analysis
- machine learning
- device fingerprinting
This material is significant because it will present the results, knowledge
and insights that resulted from three years of experimentation and work
using systematic, methodological and academic approaches.
Audience will be presented with technical knowledge, demos, insights, lessons
learned and open challenges.
Start time: 11:30
Room: Hall G
- "A Large Scale Analysis of the Security of Embedded Firmwares" (USENIX Security 2014 whitepaper)
- "Automated Dynamic Firmware Analysis at Scale: A Case Study on Embedded Web Interfaces" (arXiv whitepaper)
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