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You are here: Home / News / Peneliti Menjatuhkan Lexmark RCE Zero-day Daripada Menjual Vuln ‘for peanuts’

Peneliti Menjatuhkan Lexmark RCE Zero-day Daripada Menjual Vuln ‘for peanuts’

February 2, 2023 by Coffee Bean

Seorang peneliti keamanan menghentikan rantai kerentanan eksekusi kode jarak jauh (RCE) zero-day yang memengaruhi printer Lexmark setelah mengklaim bahwa hadiah pengungkapan yang ditawarkan kepadanya “menggelikan”.

Peneliti independen Peter Geissler (@bl4sty) mengatakan bahwa pengungkapan bug secara publik, cacat zero-day pada saat rilis tetapi sekarang ditambal, lebih disukai daripada laporan yang dijual “untuk kacang”.

Dalam penasihat keamanan yang dirilis pada 23 Januari, Lexmark mengatakan masalah tersebut, dilacak sebagai CVE-2023-23560 (CVSSv3 9.0) dan dirilis di bawah satu penugasan CVE, memengaruhi lebih dari 100 model tetapi kini telah ditambal.

Perusahaan mengatakan tidak ada bukti penggunaan berbahaya di alam liar. Ketika didekati untuk memberikan komentar, Lexmark berkata: “Lexmark mengetahui detail kerentanan ini ketika diungkapkan kepada publik. Kami telah menyediakan tambalan kepada pelanggan kami.

Menurut peneliti, Lexmark tidak diberi tahu sebelum rilis zero-day karena dua alasan.

Pertama, Geissler ingin menyoroti bagaimana kontes Pwn2Own “rusak” dalam beberapa hal, seperti yang ditunjukkan saat hadiah uang rendah ditawarkan untuk “sesuatu yang berpotensi berdampak besar” – seperti rantai eksploit yang dapat membahayakan lebih dari 100 model printer.

Lebih lanjut, dia mengatakan bahwa proses keterbukaan informasi seringkali bertele-tele dan berbelit-belit.

selengkapnya : portswigger.net

Tagged With: Bug Bounty, Hacking, Hardware, Network Security, Remote Control Execution, Vulnerabilities, Zero Day

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