ZDI-22-516: (Pwn2Own) Canon imageCLASS MF644Cdw privet Stack-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 privet API. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Canon imageCLASS MF644Cdw |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-22-516?
The ZDI-22-516 vulnerability is considered critical due to its potential to allow arbitrary code execution without authentication.
How do I fix ZDI-22-516?
To fix ZDI-22-516, apply the latest firmware updates provided by Canon for the imageCLASS MF644Cdw printer.
Who is affected by ZDI-22-516?
The ZDI-22-516 vulnerability affects installations of Canon imageCLASS MF644Cdw printers.
What type of attack does ZDI-22-516 enable?
ZDI-22-516 enables network-adjacent attackers to execute arbitrary code on the affected printers.
Is authentication required to exploit ZDI-22-516?
No, authentication is not required to exploit the ZDI-22-516 vulnerability.
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