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

6.4MEDIUM

Key Information:

Vendor

Silabs.com

Status
Z/ip Gateway Sdk
Vendor
CVE Published:
14 December 2023

What is CVE-2023-4489?

The vulnerability involves the generation of the initial S0 encryption key within Z/IP Gateway products, where an uninitialized pseudo-random number generator (PRNG) is utilized. This oversight results in the first S0 key being predictable at startup. Consequently, this predictability opens the door to potential network key prediction attacks, exposing systems to unauthorized access and compromising the integrity of network security.

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Affected Version(s)

Z/IP Gateway SDK 0 <= 7.18.3

References

https://siliconlabs.lightning.force.com/sfc/servlet.sheph...
vendor-advisory
https://github.com/SiliconLabs/gecko_sdk

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Physical
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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