ZDI-24-870: (Pwn2Own) Silicon Labs Gecko OS http_download Stack-based Buffer Overflow Remote Code Execution Vulnerability
First published: Fri Jun 21 2024(Updated: )
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Silicon Labs Gecko OS. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of the http_download command. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the device.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| SiLabs Gecko SDK | ||
| SiLabs Gecko SDK |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-24-870?
ZDI-24-870 has a high severity rating due to its potential to allow arbitrary code execution by attackers.
How do I fix ZDI-24-870?
To fix ZDI-24-870, users should update their Silicon Labs Gecko OS to the latest version provided by the vendor.
Who is affected by ZDI-24-870?
ZDI-24-870 affects installations of Silicon Labs Gecko OS that are exposed to network-adjacent attackers.
Can ZDI-24-870 be exploited remotely?
No, ZDI-24-870 requires network adjacency for exploitation, meaning the attacker needs to be on the same local network.
Is authentication required to exploit ZDI-24-870?
No, authentication is not required to exploit the ZDI-24-870 vulnerability.
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