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ROA

RPKI tidak aman – Mekanisme keamanan Internet rusak

October 10, 2022 by Winnie the Pooh

Menurut pakar keamanan dari ATHENE Jerman, Pusat Riset Nasional untuk Keamanan Siber Terapan, mekanisme keamanan internet yang disebut Resource Public Key Infrastructure (RPKI), yang dimaksudkan untuk melindungi routing lalu lintas data, rusak.

Internet adalah jaringan dari jaringan yang terhubung. Jaringan ini berkomunikasi menggunakan Border Gateway Protocol (BGP) untuk akhirnya membangun routing map internet, sehingga ketika Anda mencoba menyambung ke sesuatu, paket data Anda dikirim melalui pipa yang tepat ke tempat yang tepat.

Secara spesifik, internet terdiri dari jaringan yang disebut sistem otonom/autonomous systems (AS) yang mengiklankan prefix alamat IP mereka melalui router ke jaringan tetangga menggunakan BGP, untuk akhirnya membangun peta perutean ini (routing map internet). AS berbahaya dapat berbohong kepada tetangga mereka, mengklaim prefix alamat IP yang tidak mereka miliki.

RPKI ditujukan untuk mencegah pembajakan prefix dengan mengikat alamat IP ke AS menggunakan tanda tangan digital yang disebut ROA (Route Origin Authorizations). Hanya sekitar 40 persen dari semua blok alamat IP yang memiliki sertifikat RPKI dan hanya sekitar 27 persen yang memverifikasinya, menurut ATHENE.

Tetapi ketika digunakan, RPKI menyediakan AS dengan kemampuan untuk memvalidasi iklan prefix IP dari AS lainnya. Menggunakan ROV (Route Origin Validation), router BGP dapat mengklasifikasikan rute sebagai valid atau tidak valid. Tetapi ketika ROV tidak tersedia dari titik publikasi jaringan, router BGP menganggap rute tidak diketahui dan RPKI tidak digunakan untuk keputusan perutean.

Pilihan desain ini – memprioritaskan jangkauan jaringan daripada keamanan – mewakili sumber kerentanan, kata para peneliti ATHENE.

Selengkapnya: The Register

Tagged With: BGP, Cyber Security, Internet, Keamanan Siber, ROA, ROV, RPKI

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