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LiDAR

Serangan LidarPhone mengubah penyedot debu pintar menjadi mikrofon

November 20, 2020 by Winnie the Pooh

Sebuah tim akademisi telah merinci penelitian baru minggu ini yang mengubah penyedot debu pintar menjadi mikrofon yang mampu merekam percakapan di sekitarnya.

Dinamakan LidarPhone, teknik ini bekerja dengan mengambil komponen navigasi berbasis laser LiDAR built-in dari vakum dan mengubahnya menjadi mikrofon laser.

Mikrofon laser adalah alat pengintai terkenal yang digunakan selama Perang Dingin untuk merekam percakapan dari jauh. Agen intelijen mengarahkan laser ke jendela yang jauh untuk memantau bagaimana kaca bergetar dan menerjemahkan getaran untuk menguraikan percakapan yang terjadi di dalam ruangan.

Akademisi dari University of Maryland dan National University of Singapore mengambil konsep sederhana yang sama tetapi menerapkannya pada robot pembersih vakum Xiaomi Roborock.

Serangan LidarPhone tidak langsung, dan kondisi tertentu harus dipenuhi. Sebagai permulaan, penyerang perlu menggunakan malware atau proses pembaruan yang tercemar untuk memodifikasi firmware penyedot debu untuk mengambil kendali komponen LiDAR.

Ini diperlukan karena LiDAR vakum bekerja dengan berputar setiap saat, sebuah proses yang mengurangi jumlah titik data yang dapat dikumpulkan penyerang.

Melalui firmware yang telah terkompromi, penyerang perlu menghentikan LiDAR vakum agar tidak berputar dan sebaliknya memfokuskannya pada satu objek terdekat pada satu waktu, di mana ia dapat merekam bagaimana permukaannya bergetar menjadi gelombang suara.

Para peneliti juga mengatakan pembacaan laser yang dikumpulkan perlu diunggah ke server jarak jauh penyerang untuk diproses lebih lanjut guna meningkatkan sinyal dan mendapatkan kualitas suara ke keadaan yang dapat dipahami oleh pengamat manusia.

Baca berita selengkapnya pada tautan di bawah ini;
Source: ZDNet

Tagged With: Cybersecurity, IoT, LiDAR, LidarPhone, Secrurity, Smart Devices, Xiaomi Roborock

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