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Analog Cybersecurity of Laser-Based Sensor Spoofing Attack

Research Project

Project/Area Number 18KK0312
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research (A))

Allocation TypeMulti-year Fund
Review Section Basic Section 60070:Information security-related
Research InstitutionThe University of Electro-Communications

Principal Investigator

Sugawara Takeshi  電気通信大学, 大学院情報理工学研究科, 准教授 (60785236)

Project Period (FY) 2018 – 2020
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Keywordsハードウェアセキュリティ / センサのセキュリティ / 音声アシスタント / レーザー / 光音響効果 / TBD / 情報セキュリティ / センサ / スマートスピーカー / セキュリティ / センサー
Outline of Final Research Achievements

We discovered a new attack that injects arbitrary audio signals to a target microphone by aiming an amplitude-modulated light at the microphone’s aperture, and proposed a command injection attack on voice-controllable systems such as smartphones and smart speakers. We evaluated several products showing that we can achieve a successful injection from more than 100 meters using laser power similar to ordinary laser pointers. The paper is accepted at USENIX Security 2020, which is one of the most prestigious conference in the computer-security research field. We made responsible disclosure and collaborated with the vendors for mitigating the vulnerability.

Academic Significance and Societal Importance of the Research Achievements

センサに誤情報を挿入する攻撃は活発に研究されているが,提案法は,物理量変換(光から振動)を伴う初めて攻撃である点に大きな学術的意義がある.また,スマートスピーカーのマイクを対象とする攻撃研究の流れとしては,従来法の数倍に攻撃可能距離を延伸した点に意義がある.また,成果への社会的関心も高く,脆弱性開示のタイミングでは,CNN を始めとする一流メディアで報道された.また,スマートスピーカーのメーカーなどの関係各所に対して脆弱性開示するとともに,攻撃の理解と対策について協力を行った.

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (11 results)

All 2020 2019 Other

All Int'l Joint Research (1 results) Journal Article (1 results) Presentation (4 results) (of which Invited: 3 results) Remarks (5 results)

  • [Int'l Joint Research] ミシガン大学(米国)2019

    • Year and Date
      2019-05-01
    • Related Report
      2020 Annual Research Report
  • [Journal Article] Light Commands: Laser-Based Audio Injection on Voice-Controllable Systems2020

    • Author(s)
      T. Sugawara, B. Cyr, S. Rampazzi, D. Genkin, and K. Fu
    • Journal Title

      USENIX Security Symposium 2020

      Volume: 2020

    • Related Report
      2020 Annual Research Report
  • [Presentation] ライトコマンド: レーザーを用いて音声コマンドを挿入する攻撃2020

    • Author(s)
      菅原 健, シア ベンジャミン, ランパッジ サラ, ゲンキン ダニエル, フー ケビン
    • Organizer
      コンピュータセキュリティシンポジウム2020
    • Related Report
      2020 Annual Research Report
  • [Presentation] ライトコマンド: レーザー照射により音声コマンドを挿入する攻撃2020

    • Author(s)
      菅原健
    • Organizer
      第5回 IoTセキュリティフォーラム
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Light Commands: レーザーを用いて音声コマンドを挿入する攻撃2020

    • Author(s)
      T. Sugawara, B. Cyr, S. Rampazzi, D. Genkin, and K. Fu
    • Organizer
      暗号と情報セキュリティワークショップ2020
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Laser Injection Attacks on Integrated Circuits and Sensors2020

    • Author(s)
      T. Sugawara
    • Organizer
      SPQR Laboratory Embedded Security Workshop
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Remarks] Laser-Based Audio Injection on VCS

    • URL

      https://lightcommands.com

    • Related Report
      2020 Annual Research Report 2019 Research-status Report
  • [Remarks] レーザーを用いて音声コマンドを挿入する攻撃

    • Related Report
      2020 Annual Research Report
  • [Remarks] Youtube の動画

    • URL

      https://www.youtube.com/channel/UC2y3z169n9xXxPEBtxcAYjA

    • Related Report
      2020 Annual Research Report
  • [Remarks] レーザーを用いて音声コマンドを挿入する攻撃

    • URL

      https://lightcommands.com/index_jp.html

    • Related Report
      2019 Research-status Report
  • [Remarks] Youtube にアップロードした解説動画

    • URL

      https://www.youtube.com/channel/UC2y3z169n9xXxPEBtxcAYjA

    • Related Report
      2019 Research-status Report

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Published: 2019-02-06   Modified: 2022-01-27  

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