ZDI-22-349: (Pwn2Own) Western Digital My Cloud Pro Series PR4100 ConnectivityService Insufficient Verification of Data Authenticity Remote Code Execution Vulnerability

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Western Digital MyCloud PR4100. Authentication is not required to exploit this vulnerability. The specific flaw exists within the ConnectivityService service. The issue results from the lack of proper authentication of data received via HTTP. An attacker can leverage this vulnerability to execute code in the context of root.

Affected Software

1 affected component
Western Digital MyCloud PR4100

Event History

Jan 30, 2025
Advisory Published
via ZDI·03:05 PM

Frequently Asked Questions

1

What is the severity of ZDI-22-349?

ZDI-22-349 is classified as a critical vulnerability that allows arbitrary code execution.

2

How can I fix ZDI-22-349?

To mitigate ZDI-22-349, update your Western Digital MyCloud PR4100 to the latest firmware version provided by the vendor.

3

Who is affected by ZDI-22-349?

ZDI-22-349 affects installations of the Western Digital MyCloud PR4100 device.

4

Is authentication required to exploit ZDI-22-349?

No, ZDI-22-349 can be exploited by network-adjacent attackers without the need for authentication.

5

What impact does ZDI-22-349 have on affected systems?

ZDI-22-349 potentially allows attackers to execute arbitrary code, compromising the affected system's integrity.

Contact

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