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You are here: Home / News / Bug yang dieksploitasi secara aktif melewati otentikasi pada jutaan router

Bug yang dieksploitasi secara aktif melewati otentikasi pada jutaan router

August 9, 2021 by Winnie the Pooh

Pelaku ancaman secara aktif mengeksploitasi kerentanan bypass otentikasi kritis yang memengaruhi router rumah dengan firmware Arcadyan untuk mengambil alih dan menyebarkan muatan berbahaya botnet Mirai.

Kerentanan yang dilacak sebagai CVE-2021-20090 adalah kerentanan traversal jalur kritis (diberi peringkat 9.9/10) di antarmuka web router dengan firmware Arcadyan yang dapat memungkinkan penyerang jarak jauh yang tidak diautentikasi untuk mem-bypass otentikasi.

Serangan yang sedang berlangsung ditemukan oleh peneliti Juniper Threat Labs saat memantau aktivitas aktor ancaman yang dikenal menargetkan jaringan dan perangkat IoT sejak Februari.

Perangkat yang rentan termasuk lusinan model router dari beberapa vendor dan ISP, termasuk Asus, British Telecom, Deutsche Telekom, Orange, O2 (Telefonica), Verizon, Vodafone, Telstra, dan Telus.

Berdasarkan jumlah model router dan daftar panjang vendor yang terkena dampak bug ini, jumlah total perangkat yang terkena serangan kemungkinan mencapai jutaan router.

Cacat keamanan ditemukan oleh Tenable, yang menerbitkan penasihat keamanan pada 26 April dan menambahkan bukti konsep kode eksploitasi pada Selasa, 3 Agustus.

A little video demo from the Buffalo writeup ( https://t.co/ySft5EP299 ) : pic.twitter.com/1ulDi0CyXZ

— evan grant (@stargravy) August 3, 2021

Sejak Kamis, Juniper Threat Labs “mengidentifikasi beberapa pola serangan yang mencoba mengeksploitasi kerentanan ini di alam liar yang berasal dari alamat IP yang terletak di Wuhan, provinsi Hubei, Cina.”

Pelaku ancaman di balik aktivitas eksploitasi yang sedang berlangsung ini menggunakan alat berbahaya untuk menyebarkan varian botnet Mirai, serupa dengan yang digunakan dalam kampanye Mirai yang menargetkan perangkat IoT dan keamanan jaringan, yang ditemukan oleh peneliti Unit 42 pada bulan Maret.

Selengkapnya: Bleeping Computer

Tagged With: Botnet, Cybersecurity, Mirai, Router, Vulnerability

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