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You are here: Home / News / Eksploitasi 0-hari Windows PrintNightmare publik memungkinkan pengambilalihan domain

Eksploitasi 0-hari Windows PrintNightmare publik memungkinkan pengambilalihan domain

July 1, 2021 by Winnie the Pooh

Detail teknis dan eksploitasi proof-of-concept (PoC) telah bocor secara tidak sengaja untuk kerentanan yang saat ini belum ditambal di Windows yang memungkinkan eksekusi kode jarak jauh.

Terlepas dari kebutuhan untuk otentikasi, tingkat keparahan masalah ini sangat penting karena aktor ancaman dapat menggunakannya untuk mengambil alih server domain Windows untuk menyebarkan malware dengan mudah ke seluruh jaringan perusahaan.

Masalah ini memengaruhi Windows Print Spooler dan karena daftar panjang bug yang memengaruhi komponen ini selama bertahun-tahun [1, 2, 3, 4], para peneliti menamakannya PrintNightmare.

Beberapa peneliti telah menguji eksploitasi PoC yang bocor pada sistem Windows Server 2019 yang sepenuhnya ditambal dan dapat mengeksekusi kode sebagai SISTEM.

Kebocoran detail untuk kerentanan ini terjadi secara tidak sengaja, karena kebingungan dengan masalah lain, CVE-2021-1675, juga memengaruhi Print Spooler yang ditambal Microsoft dalam peluncuran pembaruan keamanan bulan ini.

Awalnya, Microsoft mengklasifikasikan CVE-2021-1675 sebagai masalah eskalasi hak istimewa dengan tingkat keparahan tinggi, tetapi beberapa minggu kemudian mengubah peringkat menjadi kritis dan berdampak pada eksekusi kode jarak jauh, tanpa memberikan detail apa pun.

Dikreditkan untuk pelaporan CVE-2021-1675 adalah peneliti dari tiga perusahaan cybersecurity (Tencent, AFINE, NSFOCUS) tetapi beberapa tim menganalisis Windows Print Spooler.

selengkapnya : www.bleepingcomputer.com

Tagged With: Printer

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