CVE-2023-1752 : Vulnerability Insights and Analysis

This CVE record pertains to the vulnerability identified in the Nexx Smart Home devices that could potentially allow any user to register an already registered alarm or associated device with just the device’s MAC address.

Understanding CVE-2023-1752

This section will delve into the details of CVE-2023-1752, providing insights into the nature and impact of the vulnerability.

What is CVE-2023-1752?

CVE-2023-1752 concerns the improper authentication vulnerability (CWE-287) present in certain versions of Nexx Smart Home devices. This flaw enables unauthorized users to register a device by utilizing its MAC address, even if it has already been registered.

The Impact of CVE-2023-1752

The impact of this vulnerability is significant as it allows malicious actors to associate devices with an alarm system without authentication. This could lead to unauthorized control over these devices, posing a serious security risk to users.

Technical Details of CVE-2023-1752

In this section, we will provide a deeper understanding of the vulnerability, including its description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability lies in the affected versions of Nexx Smart Home devices, specifically the Smart Alarm NXAL-100, Smart Plug NXPG-100W, and Garage Door Controller NXG-100B and NXG-200. Unauthorized users can exploit this flaw to register devices with alarm systems without proper authentication.

Affected Systems and Versions

The following Nexx Smart Home devices and versions are affected by CVE-2023-1752:

Smart Alarm NXAL-100: Version less than or equal to nxal100v-p1-9-1
Smart Plug NXPG-100W: Version less than or equal to nxpg100cv4-0-0
Garage Door Controller NXG-100B, NXG-200: Version less than or equal to nxg200v-p3-4-1

Exploitation Mechanism

The vulnerability allows attackers to register devices using only the MAC address, bypassing the required authentication process. By leveraging this flaw, threat actors can associate unauthorized devices with existing alarm systems, compromising the security of the smart home ecosystem.

Mitigation and Prevention

This section outlines the necessary steps to mitigate the risks associated with CVE-2023-1752 and prevent potential exploitation of the vulnerability.

Immediate Steps to Take

Users of Nexx Smart Home devices should immediately update their firmware to the latest patched versions to mitigate the vulnerability. It is crucial to ensure that all devices are running the most recent software to prevent unauthorized registrations.

Long-Term Security Practices

In the long term, users should implement robust authentication mechanisms, such as multi-factor authentication, to enhance the security of their smart home devices. Regularly monitoring for firmware updates and security advisories is essential to stay protected against emerging threats.

Patching and Updates

Nexx should release patches promptly to address the authentication vulnerability in the affected versions of their smart home devices. Users are advised to apply these patches as soon as they become available to safeguard their devices from potential exploitation.

By following these mitigation strategies and best security practices, users can safeguard their smart home ecosystem from the risks posed by CVE-2023-1752.