// For flags

CVE-2023-4489

Z/IP Gateway Use of Uninitialized PRNG when Generating S0 Encryption Key

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

La primera clave de cifrado S0 se genera con un PRNG no inicializado en productos Z/IP Gateway que ejecutan Silicon Labs Z/IP Gateway SDK v7.18.3 y versiones anteriores. Esto hace que la primera clave S0 generada al inicio sea predecible, lo que potencialmente permite la predicción de claves de red y el acceso no autorizado a la red S0.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Physical
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-08-23 CVE Reserved
  • 2023-12-14 CVE Published
  • 2024-09-27 CVE Updated
  • 2024-11-13 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-908: Use of Uninitialized Resource
  • CWE-1279: Cryptographic Operations are run Before Supporting Units are Ready
CAPEC
  • CAPEC-59: Session Credential Falsification through Prediction
References (1)
URL Tag Source
https://github.com/SiliconLabs/gecko_sdk Third Party Advisory
URL Date SRC
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Silabs
Search vendor "Silabs"
 Z\/ip Gateway Sdk
Search vendor "Silabs" for product "Z\/ip Gateway Sdk"
 <= 7.18.03
Search vendor "Silabs" for product "Z\/ip Gateway Sdk" and version " <= 7.18.03"
-
Affected