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You are here: Home / News / Apple mengizinkan beberapa lalu lintas jaringan Big Sur melewati firewall

Apple mengizinkan beberapa lalu lintas jaringan Big Sur melewati firewall

November 18, 2020 by Winnie the Pooh

Firewall tidak hanya untuk jaringan perusahaan. Sejumlah besar orang yang sadar keamanan atau privasi juga menggunakannya untuk memfilter atau mengarahkan lalu lintas yang mengalir masuk dan keluar dari komputer mereka. Apple baru-baru ini membuat perubahan besar pada macOS yang menggagalkan upaya ini.

Dimulai dengan macOS Catalina yang dirilis tahun lalu, Apple menambahkan daftar 50 aplikasi dan proses khusus Apple yang dibebaskan dari firewall seperti Little Snitch dan Lulu. Pengecualian tidak berdokumen, yang tidak berlaku sampai firewall ditulis ulang untuk menerapkan perubahan di Big Sur, pertama kali terungkap pada bulan Oktober. Patrick Wardle, seorang peneliti keamanan di Mac dan pengembang perusahaan iOS Jamf, mendokumentasikan lebih lanjut perilaku baru tersebut selama akhir pekan.

Untuk mendemonstrasikan risiko yang menyertai langkah ini, Wardle — mantan peretas untuk NSA — mendemonstrasikan bagaimana pengembang malware dapat mengeksploitasi perubahan tersebut untuk menghentikan langkah keamanan yang sudah terbukti dan benar. Dia mengatur Lulu dan Little Snitch untuk memblokir semua lalu lintas keluar di Mac yang menjalankan Big Sur dan kemudian menjalankan skrip pemrograman kecil yang mengeksploitasi kode berinteraksi dengan salah satu aplikasi yang dikecualikan Apple. Skrip python tidak mengalami kesulitan menjangkau server perintah dan kontrol yang dia siapkan untuk mensimulasikan yang biasa digunakan oleh malware untuk mengekstrak data sensitif.

Baca berita selengkapnya pada tautan berikut:
Sumber: Ars Technica

Tagged With: Apple, Application, Code, Firewall, iOS, Mac, MacOS, Malware, NSA, peretas, Python, Server

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