CVE-2023-4489
Z/IP Gateway Use of Uninitialized PRNG when Generating S0 Encryption Key
- State
- Published
- Severity
- 6.4 Medium
- Published
- Dec 14, 2023
- Updated
- May 21, 2025
- Reserved
- Aug 23, 2023
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.4 Medium | CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H | Silabs |
Weaknesses
- CWE-1279 Cryptographic Operations are run Before Supporting Units are Ready
Affected Products
| Product | Versions |
|---|---|
Z/IP Gateway SDKsilabs.com |
|
References
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