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You are here: Home / News / Bug Agen McAfee memungkinkan peretas menjalankan kode dengan hak istimewa SISTEM Windows

Bug Agen McAfee memungkinkan peretas menjalankan kode dengan hak istimewa SISTEM Windows

January 24, 2022 by Eevee

McAfee Enterprise telah menambal kerentanan keamanan yang ditemukan dalam perangkat lunak Agen McAfee perusahaan untuk Windows yang memungkinkan penyerang meningkatkan hak istimewa dan mengeksekusi kode arbitrer dengan hak istimewa SISTEM.

Perusahaan telah memperbaiki kelemahan eskalasi hak istimewa lokal (LPE) tingkat keparahan tinggi yang dilacak sebagai CVE-2022-0166 dan ditemukan oleh analis kerentanan CERT/CC Will Dormann mengeluarkan pembaruan keamanan dengan merilis McAfee Agent 5.7.5 pada 18 Januari.

Semua versi Agen McAfee sebelum 5.7.5 rentan dan memungkinkan penyerang yang tidak memiliki hak untuk menjalankan kode menggunakan hak akun NT AUTHORITY\SYSTEM, tingkat hak istimewa tertinggi pada sistem Windows, yang digunakan oleh OS dan layanan OS.

“Agen McAfee berisi layanan istimewa yang menggunakan komponen OpenSSL ini. Seorang pengguna yang dapat menempatkan file openssl.cnf yang dibuat khusus pada jalur yang sesuai mungkin dapat mencapai eksekusi kode arbitrer dengan hak istimewa SISTEM.”

Setelah eksploitasi yang berhasil, pelaku ancaman dapat terus-menerus mengeksekusi muatan berbahaya dan berpotensi menghindari deteksi selama serangan.

Meskipun hanya dapat dieksploitasi secara lokal, pelaku ancaman biasanya mengeksploitasi jenis kelemahan keamanan ini selama tahap serangan selanjutnya, setelah menyusup ke mesin target untuk meningkatkan izin guna mendapatkan kegigihan dan lebih lanjut membahayakan sistem.

Ini bukan pertama kalinya peneliti keamanan menemukan kerentanan saat menganalisis produk keamanan Windows McAfee.

Misalnya, pada September 2021, perusahaan menambal bug eskalasi hak istimewa Agen McAfee lainnya (CVE-2020-7315) yang ditemukan oleh peneliti keamanan Tenable Clément Notin yang memungkinkan pengguna lokal untuk mengeksekusi kode arbitrer dan mematikan antivirus.

Dua tahun sebelumnya, McAfee memperbaiki kerentanan keamanan yang memengaruhi semua edisi perangkat lunak Antivirus untuk Windows (yaitu, Perlindungan Total, Anti-Virus Plus, dan Keamanan Internet) dan memungkinkan penyerang potensial untuk meningkatkan hak istimewa dan mengeksekusi kode dengan otoritas akun SISTEM.

Sumber : Bleeping Computer

Tagged With: McAfee, SISTEM, Trellix, Windows

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