8.8
Advisory Published

ZDI-22-514: (Pwn2Own) Canon imageCLASS MF644Cdw CADM Heap-based Buffer Overflow Remote Code Execution Vulnerability

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Canon imageCLASS MF644Cdw printers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the CADM service. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the service account.

Affected SoftwareAffected VersionHow to fix
Canon imageCLASS MF644Cdw

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Frequently Asked Questions

  • What is the severity of ZDI-22-514?

    The severity of ZDI-22-514 is critical due to the potential for arbitrary code execution by unauthenticated attackers.

  • How do I fix ZDI-22-514?

    To fix ZDI-22-514, ensure that your Canon imageCLASS MF644Cdw printer is updated with the latest firmware from Canon.

  • Who is affected by ZDI-22-514?

    The vulnerability ZDI-22-514 affects all installations of Canon imageCLASS MF644Cdw printers.

  • Can ZDI-22-514 be exploited remotely?

    Yes, ZDI-22-514 can be exploited remotely by network-adjacent attackers without authentication.

  • What type of attack is described in ZDI-22-514?

    ZDI-22-514 describes a vulnerability that allows for remote code execution attacks against the affected printer model.

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