ZDI-22-1666: Canon imageCLASS MF644Cdw BJNP Integer 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 BJNP service. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a 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-22-1666?
The severity of ZDI-22-1666 is high due to its potential for arbitrary code execution.
How do I fix ZDI-22-1666?
To fix ZDI-22-1666, update the firmware of the Canon imageCLASS MF644Cdw printer to the latest version provided by Canon.
Who is affected by ZDI-22-1666?
ZDI-22-1666 affects installations of the Canon imageCLASS MF644Cdw printers that are exposed to network access.
What type of attack does ZDI-22-1666 enable?
ZDI-22-1666 enables network-adjacent attackers to execute arbitrary code without requiring authentication.
What is the underlying cause of ZDI-22-1666?
The underlying cause of ZDI-22-1666 is a flaw in the BJNP service of the affected Canon printers.
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- alias/CVE-2022-43608
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