Pwn2Own 2021 Canon ImageCLASS MF644Cdw writeup

Introduction

Pwn2Own Austin 2021 was announced in August 2021 and introduced new categories, including printers. Based on our previous experience with printers, we decided to go after one of the three models. Among those, the Canon ImageCLASS MF644Cdw seemed like the most interesting target: previous research was limited (mostly targeting …

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