CVE-2023-41094 : Exploit Details and Defense Strategies

A critical vulnerability labeled as CVE-2023-41094 has been discovered in the Ember ZNet product by Silicon Labs, potentially affecting versions 7.1.3 through 7.2.3. This vulnerability could allow unauthorized devices to be added outside the valid TouchLink range or pairing duration.

Understanding CVE-2023-41094

This section delves into the details of CVE-2023-41094.

What is CVE-2023-41094?

The vulnerability allows Touchlink packets to be processed after a timeout or out of range, leading to the addition of unauthorized devices. This affects Ember ZNet versions 7.1.3 through 7.2.3.

The Impact of CVE-2023-41094

The impacts include unauthorized use of device resources and authentication bypass, potentially resulting in severe security breaches.

Technical Details of CVE-2023-41094

Let's explore the technical aspects of CVE-2023-41094.

Vulnerability Description

Touchlink packets processed after timeout or out of range due to Operation on a Resource after Expiration and Missing Release of Resource after Effective Lifetime may allow a device to be added outside of valid TouchLink range or pairing duration.

Affected Systems and Versions

The vulnerability affects Ember ZNet versions 7.1.x from 7.1.3 through 7.1.5, and 7.2.x from 7.2.0 through 7.2.3. Version 7.3 and later are unaffected.

Exploitation Mechanism

The vulnerability exploited could potentially bypass authentication and allow unauthorized device addition beyond intended parameters.

Mitigation and Prevention

Protecting your systems from CVE-2023-41094 is crucial. Below are the necessary steps to mitigate and prevent exploitation.

Immediate Steps to Take

Ensure immediate action to secure systems by applying relevant patches and updates to prevent unauthorized access.

Long-Term Security Practices

Implement robust security protocols, conduct regular security audits, and educate users to enhance overall security posture.

Patching and Updates

Regularly monitor for security advisories, apply vendor-supplied patches promptly, and keep systems up to date to mitigate future vulnerabilities.