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CVE-2022-26809

Cacat Windows RPC CVE-2022-26809 yang kritis menimbulkan kekhawatiran — Perbarui sekarang

April 15, 2022 by Winnie the Pooh

Microsoft telah memperbaiki kerentanan Windows RPC CVE-2022-26809 baru yang menimbulkan kekhawatiran di antara peneliti keamanan karena potensinya untuk serangan siber yang luas dan signifikan setelah eksploitasi dikembangkan. Oleh karena itu, semua organisasi perlu menerapkan pembaruan keamanan Windows sesegera mungkin.

Microsoft memperbaiki kerentanan ini sebagai bagian dari pembaruan Patch Tuesday April 2022 dan menilainya sebagai ‘Kritis,’ karena memungkinkan eksekusi kode jarak jauh yang tidak sah melalui bug dalam protokol komunikasi Microsoft Remote Procedure Call (RPC).

Jika dieksploitasi, perintah apa pun akan dieksekusi pada tingkat hak istimewa yang sama dengan server RPC, yang dalam banyak kasus memiliki izin tingkat SISTEM yang ditingkatkan atau, yang menyediakan akses administratif penuh ke perangkat yang dieksploitasi.

Protokol Microsoft Remote Procedure Call (RPC) adalah protokol komunikasi yang memungkinkan proses untuk berkomunikasi satu sama lain, bahkan jika program tersebut berjalan di perangkat lain.

RPC memungkinkan proses pada perangkat yang berbeda untuk berkomunikasi satu sama lain, dengan host RPC mendengarkan koneksi jarak jauh melalui port TCP, paling sering port 445 dan 135.

Para peneliti telah mulai menganalisis dan menerbitkan detail teknis tentang kerentanan, yang akan digunakan oleh peneliti lain dan aktor ancaman untuk disatukan menjadi eksploitasi yang bisa diterapkan.

Kecuali pembaruan keamanan diinstal, perangkat akan tetap rentan secara internal terhadap pelaku ancaman yang membahayakan jaringan.

Selengkapnya: Bleeping Computer

Tagged With: CVE-2022-26809, Cybersecurity, Microsoft, RPC, Security Patch, Windows

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