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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.4 MEDIUM
PHYSICAL
HIGH
NONE
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SilabsCNA
6.4 MEDIUM
PHYSICAL
HIGH
NONE
CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVEADP
---
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CISA-ADPADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 44%
VendorProductVersion
silabsz\/ip_gateway_sdk
𝑥
≤ 7.18.03
𝑥
= Vulnerable software versions
Common Weakness Enumeration
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