Cyber Resilience

CVE-2023-4489

Silabs Z\/Ip Gateway Sdk ≤ 7.18.03

Published
14 December 2023
Modified
21 November 2024
CVSS Score v3.1 6.4
Click a component to see what it means
Raw vectorCVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0053 42th percentile
Risk Priority 49 floored blend · peak EPSS

Summary

CVE-2023-4489 is a medium-severity Cryptographic Operations are run Before Supporting Units are Ready (CWE-1279) vulnerability in Silabs Z\/Ip Gateway Sdk. Its CVSS base score is 6.4 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique OS Credential Dumping (T1003); ranked at the 42th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

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…

more

unauthorized S0 network access.

CWE(s)
CWE-1279CWE-908

Related Threats

MITRE ATT&CK Enterprise Techniques

T1003 OS Credential Dumping Credential Access
Adversaries may attempt to dump credentials to obtain account login and credential material, normally in the form of a hash or a clear text password.
attack.mitre.org →
T1212 Exploitation for Credential Access Credential Access
Adversaries may exploit software vulnerabilities in an attempt to collect credentials.
attack.mitre.org →
T1552 Unsecured Credentials Credential Access
Adversaries may search compromised systems to find and obtain insecurely stored credentials.
attack.mitre.org →
T1600 Weaken Encryption Defense Impairment
Adversaries may compromise a network device’s encryption capability in order to bypass encryption that would otherwise protect data communications.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-0970Same product: Silabs Z\/Ip Gateway Sdk
CVE-2023-0969Same product: Silabs Z\/Ip Gateway Sdk
CVE-2023-0972Same product: Silabs Z\/Ip Gateway Sdk
CVE-2023-0971Same product: Silabs Z\/Ip Gateway Sdk
CVE-2023-2747Same vendor: Silabs
CVE-2023-3488Same vendor: Silabs
CVE-2023-32096Same vendor: Silabs
CVE-2023-32100Same vendor: Silabs
CVE-2023-2481Same vendor: Silabs
CVE-2023-0965Same vendor: Silabs

Affected Assets

silabs
z\/ip gateway sdk
≤ 7.18.03

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V11.2.1

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC activities such as static analysis and code review directly prevent use of uninitialized resources while also addressing many other weaknesses.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing in development can detect cases where crypto runs before inputs are valid.

A.8.24 Use of cryptography partial match
prevents

Mandates proper use of cryptography, which includes ensuring supporting units are ready before operations.

A.8.25 Secure development life cycle partial match
prevents

Secure development life cycle mandates initialization checks and static analysis that can catch uninitialized resource use.

A.8.26 Application security requirements partial match
prevents

Application security requirements can specify mandatory initialization of variables and resources before use.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Requires secure system architecture and engineering principles that would address readiness of cryptographic inputs.

A.8.28 Secure coding partial match
prevents

Secure coding practices can prevent cryptographic operations before supporting units are ready.

References