What is the severity of CVE-2023-4489?

CVE-2023-4489 is classified as high severity due to the potential for unauthorized access through predictable encryption key generation.

How do I fix CVE-2023-4489?

To fix CVE-2023-4489, upgrade to Z/IP Gateway SDK version 7.18.4 or later, which addresses the uninitialized PRNG issue.

What is the risk associated with CVE-2023-4489?

The risk associated with CVE-2023-4489 includes potential unauthorized access to network keys, leading to compromised networks.

Is there a patch available for CVE-2023-4489?

Yes, a patch is available by upgrading to Z/IP Gateway SDK version 7.18.4, which resolves the vulnerability.

Vulnerability/
CVE-2023-4489

critical

9.8

CWE

908 1279

14/12/2023

27/9/2024

CVE-2023-4489: Z/IP Gateway Use of Uninitialized PRNG when Generating S0 Encryption Key

Q: What systems are affected by CVE-2023-4489?

CVE-2023-4489 affects Z/IP Gateway products running Silicon Labs Z/IP Gateway SDK versions up to and including 7.18.3.

First published: Thu Dec 14 2023(Updated: )

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.

Credit: product-security@silabs.com

Affected Software	Affected Version	How to fix
Silabs Z/IP Gateway SDK	<=7.18.03

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Frequently Asked Questions

What is the severity of CVE-2023-4489?
CVE-2023-4489 is classified as high severity due to the potential for unauthorized access through predictable encryption key generation.
How do I fix CVE-2023-4489?
To fix CVE-2023-4489, upgrade to Z/IP Gateway SDK version 7.18.4 or later, which addresses the uninitialized PRNG issue.
What systems are affected by CVE-2023-4489?
CVE-2023-4489 affects Z/IP Gateway products running Silicon Labs Z/IP Gateway SDK versions up to and including 7.18.3.
What is the risk associated with CVE-2023-4489?
The risk associated with CVE-2023-4489 includes potential unauthorized access to network keys, leading to compromised networks.
Is there a patch available for CVE-2023-4489?
Yes, a patch is available by upgrading to Z/IP Gateway SDK version 7.18.4, which resolves the vulnerability.

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