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My Book Live

Peretas mengeksploitasi bug zero day untuk menghapus perangkat My Book Live secara massal

June 30, 2021 by Winnie the Pooh

Penghapusan massal perangkat penyimpanan Western Digital My Book Live minggu lalu melibatkan eksploitasi tidak hanya satu kerentanan tetapi juga bug keamanan kritis kedua yang memungkinkan peretas melakukan reset pabrik dari jarak jauh tanpa kata sandi, sebuah penyelidikan menunjukkan.

Kerentanannya luar biasa karena membuatnya sepele untuk menghapus data pengguna yang kemungkinan berukuran petabyte. Lebih penting lagi adalah bahwa, menurut kode yang rentan itu sendiri, pengembang Western Digital secara aktif menghapus kode yang memerlukan kata sandi pengguna yang valid sebelum mengizinkan pengaturan ulang pabrik untuk melanjutkan.

Kerentanan yang tidak terdokumentasi berada dalam file bernama system_factory_restore. Ini berisi skrip PHP yang melakukan reset, memungkinkan pengguna untuk mengembalikan semua konfigurasi default dan menghapus semua data yang tersimpan di perangkat.

“Vendor yang mengomentari otentikasi di titik akhir pemulihan sistem benar-benar tidak membuat segalanya terlihat baik bagi mereka,” HD Moore, pakar keamanan dan CEO platform penemuan jaringan Rumble, mengatakan kepada Ars. “Sepertinya mereka sengaja mengaktifkan bypass.”

Untuk mengeksploitasi kerentanan, penyerang harus mengetahui format permintaan XML yang memicu reset. Itu “tidak semudah menekan URL acak dengan permintaan GET, tetapi [itu] juga tidak terlalu jauh,” kata Moore.

My Book Live adalah perangkat penyimpanan seukuran buku yang menggunakan jack Ethernet untuk terhubung ke jaringan rumah dan kantor sehingga komputer yang terhubung memiliki akses ke data di dalamnya.

Selengkapnya: Ars Technica

Tagged With: Cybersecurity, My Book Live, Vulnerability, Zero Day

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