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YubiKey

Serangan side-channel baru dapat memulihkan kunci enkripsi dari kunci keamanan Google Titan

January 8, 2021 by Winnie the Pooh

Duo peneliti keamanan Prancis telah menemukan kerentanan yang memengaruhi chip yang digunakan di dalam Google Titan dan kunci keamanan perangkat keras YubiKey.

Kerentanan memungkinkan pelaku ancaman untuk memulihkan kunci enkripsi utama yang digunakan oleh kunci keamanan perangkat keras untuk menghasilkan token kriptografi untuk operasi otentikasi dua faktor (2FA).

Setelah diperoleh, kedua peneliti keamanan tersebut mengatakan bahwa kunci enkripsi, kunci privat ECDSA, akan memungkinkan pelaku ancaman untuk mengkloning Titan, YubiKey, dan kunci lainnya untuk melewati prosedur 2FA.

Dalam laporan PDF 60 halaman, Victor Lomne dan Thomas Roche, peneliti NinjaLab yang berbasis di Montpellier, menjelaskan seluk-beluk serangan tersebut, yang juga dilacak sebagai CVE-2021-3011.

Untuk mengeksploitasi kunci keamanan Google Titan atau Yubico, penyerang harus terlebih dahulu mendapatkan kunci keamanan tersebut.

Biasanya, jenis serangan ini berada di luar jangkauan peretas biasa, tetapi peneliti keamanan memperingatkan bahwa pelaku ancaman tertentu, seperti badan intelijen tiga huruf, biasanya memiliki kemampuan untuk melakukan ini.

Mengenai tipe apa saja yang rentan, para peneliti mengatakan mereka menguji serangan mereka pada chip NXP A7005a, yang saat ini digunakan untuk model kunci keamanan berikut:

  • Kunci Keamanan Google Titan (semua versi)
  • Yubico Yubikey Neo
  • Feitian FIDO NFC USB-A / K9
  • Feitian MultiPass FIDO / K13
  • Feitian ePass FIDO USB-C / K21
  • Feitian FIDO NFC USB-C / K40

Sumber: ZDNet

Tagged With: Cybersecurity, Google, Google Titan, Security Key, YubiKey

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