Learn about CVE-2023-0970, a high-severity vulnerability in SiLabs Z/IP Gateway SDK allowing attackers with physical access to execute arbitrary code. Find mitigation steps and patch details.
This CVE record was published by Silabs on June 21, 2023, highlighting a vulnerability in SiLabs Z/IP Gateway SDK version 7.18.01 and earlier. Attackers with invasive physical access to a Z-Wave controller device could exploit this vulnerability to execute arbitrary code.
Understanding CVE-2023-0970
This section delves into the details and impacts of CVE-2023-0970.
What is CVE-2023-0970?
The CVE-2023-0970 vulnerability involves multiple buffer overflow issues in SiLabs Z/IP Gateway SDK versions prior to 7.18.01. It enables attackers with physical access to a Z-Wave controller device to overwrite global memory, potentially leading to the execution of arbitrary code.
The Impact of CVE-2023-0970
The impact of this vulnerability is rated as high severity across various aspects according to the CVSS v3.1 metrics. The attack complexity is high, leveraging a physical attack vector with significant availability, confidentiality, and integrity impacts.
Technical Details of CVE-2023-0970
Exploring the vulnerability, affected systems and versions, and the exploitation mechanism.
Vulnerability Description
CVE-2023-0970 stems from multiple buffer overflow vulnerabilities in SiLabs Z/IP Gateway SDK version 7.18.01 and earlier, ultimately enabling unauthorized memory overwrites and potential arbitrary code execution.
Affected Systems and Versions
The vulnerability affects the Z/IP Gateway SDK versions up to and including 7.18.01. Specifically, the product "Z/IP Gateway" by Silicon Labs is impacted.
Exploitation Mechanism
To exploit CVE-2023-0970, an attacker requires invasive physical access to a Z-Wave controller device. By leveraging this access, they can manipulate the global memory to execute unauthorized code.
Mitigation and Prevention
Understanding the steps to mitigate the risk and prevent future exploitation of CVE-2023-0970.
Immediate Steps to Take
It is recommended to restrict physical access to Z-Wave controller devices to authorized personnel only. Regular monitoring and auditing of device access can help in early detection of unauthorized activities.
Long-Term Security Practices
Implementing strong access controls, regular security assessments, and continuous monitoring of the Z/IP Gateway SDK environment can enhance overall security posture and resilience against potential threats.
Patching and Updates
Silicon Labs should release patches addressing the buffer overflow vulnerabilities in the Z/IP Gateway SDK. Users are advised to promptly apply these patches and keep their systems up to date to mitigate the risk posed by CVE-2023-0970.