IotSan: Fortifying the safety of IoT systems

Dang Tu Nguyen, Chengyu Song, Zhiyun Qian, Srikanth V. Krishnamurthy, Edward J.M. Colbert, Patrick McDaniel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

28 Scopus citations

Abstract

Today’s IoT systems include event-driven smart applications (apps) that interact with sensors and actuators. A problem specific to IoT systems is that buggy apps, unforeseen bad app interactions, or device/communication failures, can cause unsafe and dangerous physical states. Detecting flaws that lead to such states, requires a holistic view of installed apps, component devices, their configurations, and more importantly, how they interact. In this paper, we design IotSan, a novel practical system that uses model checking as a building block to reveal “interaction-level” flaws by identifying events that can lead the system to unsafe states. In building IotSan, we design novel techniques tailored to IoT systems, to alleviate the state explosion associated with model checking. IotSan also automatically translates IoT apps into a format amenable to model checking. Finally, to understand the root cause of a detected vulnerability, we design an attribution mechanism to identify problematic and potentially malicious apps. We evaluate IotSan on the Samsung SmartThings platform. From 76 manually configured systems, IotSan detects 147 vulnerabilities. We also evaluate IotSan with malicious SmartThings apps from a previous effort. IotSan detects the potential safety violations and also effectively attributes these apps as malicious.

Original languageEnglish (US)
Title of host publicationCoNEXT 2018 - Proceedings of the 14th International Conference on Emerging Networking EXperiments and Technologies
PublisherAssociation for Computing Machinery, Inc
Pages191-203
Number of pages13
ISBN (Electronic)9781450360807
DOIs
StatePublished - Dec 4 2018
Event14th International Conference on Emerging Networking EXperiments and Technologies, CoNEXT 2018 - Heraklion, Greece
Duration: Dec 4 2018Dec 7 2018

Publication series

NameCoNEXT 2018 - Proceedings of the 14th International Conference on Emerging Networking EXperiments and Technologies

Other

Other14th International Conference on Emerging Networking EXperiments and Technologies, CoNEXT 2018
CountryGreece
CityHeraklion
Period12/4/1812/7/18

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Hardware and Architecture
  • Electrical and Electronic Engineering

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