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You are here: Home / News / Bug dalam miliaran WiFi, chip Bluetooth memungkinkan pencurian data dan kata sandi

Bug dalam miliaran WiFi, chip Bluetooth memungkinkan pencurian data dan kata sandi

December 14, 2021 by Winnie the Pooh

Para peneliti di University of Darmstadt, Brescia, CNIT, dan Secure Mobile Networking Lab, telah menerbitkan makalah yang membuktikan bahwa mengekstrak kata sandi dan memanipulasi lalu lintas pada chip WiFi dengan menargetkan komponen Bluetooth perangkat dapat dilakukan.

Perangkat elektronik konsumen modern seperti smartphone memiliki fitur SoC dengan komponen Bluetooth, WiFi, dan LTE yang terpisah, masing-masing dengan implementasi keamanan tersendiri.

Namun, komponen ini sering berbagi sumber daya yang sama, seperti antena atau spektrum nirkabel.

Berbagi sumber daya ini bertujuan untuk membuat SoC lebih hemat energi dan memberi mereka throughput yang lebih tinggi dan latensi yang rendah dalam komunikasi.

Seperti yang dijelaskan oleh para peneliti dalam makalah yang baru-baru ini diterbitkan, adalah mungkin untuk menggunakan sumber daya bersama ini sebagai jembatan untuk meluncurkan serangan eskalasi hak istimewa lateral melintasi batas-batas chip nirkabel.

Implikasi dari serangan ini termasuk eksekusi kode, pembacaan memori, dan denial of service.

Para peneliti menemukan kerentanan tersebut pada chip yang dibuat oleh Broadcom, Silicon Labs, dan Cypress, yang dapat ditemukan di dalam miliaran perangkat elektronik.

Semua kerentanan telah dilaporkan ke vendor chip, dan beberapa telah merilis pembaruan keamanan.

Namun masih banyak yang belum mengatasi masalah keamanan tersebut, baik karena tidak lagi mendukung produk yang terpengaruh atau karena patch firmware praktis tidak layak.

Sumber: BleepeingComputer

Sementara itu, dan selama masalah terkait perangkat keras ini masih belum diperbaiki, pengguna disarankan untuk mengikuti langkah-langkah perlindungan sederhana ini:

  • Hapus perangkat Bluetooth yang tidak perlu di ponsel Anda
  • Hapus jaringan WiFi yang tidak digunakan dari pengaturan
  • Gunakan data seluler alih-alih WiFi di ruang publik.

Selengkapnya: Bleeping Computer

Tagged With: Bluetooth, Cybersecurity, Keamanan Siber, Kerentanan Keamanan, Vulnerability, WiFi

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