ZDI-22-077: (Pwn2Own) Western Digital MyCloud PR4100 ConnectivityService Command Injection 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 validation of a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of root.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Western Digital My Cloud PR4100 |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-22-077?
The severity of ZDI-22-077 is critical due to the potential for arbitrary code execution without authentication.
How do I fix ZDI-22-077?
To fix ZDI-22-077, immediately update your Western Digital MyCloud PR4100 to the latest firmware version provided by Western Digital.
Who is affected by ZDI-22-077?
ZDI-22-077 affects all installations of the Western Digital MyCloud PR4100 that have not been patched.
What type of attack does ZDI-22-077 allow?
ZDI-22-077 allows network-adjacent attackers to execute arbitrary code on the affected devices.
Do I need authentication to exploit ZDI-22-077?
No, authentication is not required to exploit the ZDI-22-077 vulnerability.
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