Vulnerability Details CVE-2023-4489
The first S0 encryption key is generated with an uninitialized PRNG in Z/IP Gateway products running Silicon Labs Z/IP Gateway SDK v7.18.3 and earlier. This makes the first S0 key generated at startup predictable, potentially allowing network key prediction and unauthorized S0 network access.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.007
EPSS Ranking 70.8%
CVSS Severity
CVSS v3 Score 6.4
References
- https://github.com/SiliconLabs/gecko_sdk
- https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/0698Y00000buWj0QAE?operationContext=S1
- https://github.com/SiliconLabs/gecko_sdk
- https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/0698Y00000buWj0QAE?operationContext=S1
Products affected by CVE-2023-4489
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cpe:2.3:a:silabs:z/ip_gateway_sdk:-
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cpe:2.3:a:silabs:z/ip_gateway_sdk:7.18.01
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cpe:2.3:a:silabs:z/ip_gateway_sdk:7.18.03