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You are here: Home / News / Aplikasi antivirus tersedia untuk melindungi Anda – Cisco’s ClamAV memiliki kekurangan

Aplikasi antivirus tersedia untuk melindungi Anda – Cisco’s ClamAV memiliki kekurangan

February 18, 2023 by Søren

Perangkat lunak antivirus seharusnya menjadi bagian penting dari pertahanan organisasi melawan gelombang malware yang tak ada habisnya.

ClamAV open source Cisco dapat mengisi peran itu – setelah Anda menambal cacat eksekusi kode arbitrer berperingkat 9.8/10 yang diungkapkan raksasa jaringan pada hari Rabu.

“Kerentanan dalam parser file partisi HFS+ dari ClamAV versi 1.0.0 dan sebelumnya, 0.105.1 dan sebelumnya, dan 0.103.7 dan sebelumnya dapat memungkinkan penyerang jarak jauh yang tidak diautentikasi untuk mengeksekusi kode arbitrer,” kata penasehat keamanan Cisco, yang mengidentifikasi masalah sebagai CVE-2023-20032.

“Kerentanan ini disebabkan oleh pemeriksaan ukuran buffer yang hilang yang dapat mengakibatkan penulisan buffer overflow heap,” dokumen tersebut menjelaskan. “Penyerang dapat mengeksploitasi kerentanan ini dengan mengirimkan file partisi HFS+ yang dibuat untuk dipindai oleh ClamAV pada perangkat yang terpengaruh. Eksploitasi yang berhasil dapat memungkinkan penyerang untuk mengeksekusi kode arbitrer dengan hak istimewa proses pemindaian ClamAV, atau merusak proses, mengakibatkan kondisi denial of service (DoS).”

Namun memperbaiki ClamAV bukanlah akhir dari cerita. Mengatasi parser file yang salah juga memerlukan pembaruan untuk produk Cisco lainnya, termasuk perangkat keras Secure Web Appliance. Secure Endpoint Private Cloud juga memerlukan perbaikan, seperti halnya produk Secure Endpoint Cisco (sebelumnya dikenal sebagai Advanced Malware Protection for Endpoints) untuk Linux, Windows, dan macOS.

Untungnya, Cisco tidak mengetahui “pengumuman publik apa pun atau penggunaan berbahaya dari kerentanan yang dijelaskan dalam penasehat ini.”

Tapi bagaimana dengan ClamAV yang gratis dan open source, kelemahan ini kemungkinan besar akan menjadi target yang tidak akan lama diabaikan oleh penjahat dan penjahat.

Selengkapnya: The Register

Tagged With: Cisco, ClamAV, Vulnerability

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