CVE-2023-0972 : Vulnerability Insights and Analysis

This CVE record pertains to a vulnerability identified in SiLabs Z/IP Gateway 7.18.01 and earlier versions. The vulnerability allows an unauthenticated attacker within Z-Wave range to overflow a stack buffer, leading to arbitrary code execution.

Understanding CVE-2023-0972

This section delves into the details of CVE-2023-0972 and its implications.

What is CVE-2023-0972?

The CVE-2023-0972 vulnerability involves a stack buffer overflow in SiLabs Z/IP Gateway, specifically affecting versions 7.18.01 and earlier. This flaw enables an unauthorized attacker within Z-Wave range to exceed the limits of a stack buffer, potentially resulting in the execution of malicious code.

The Impact of CVE-2023-0972

The impacts associated with CVE-2023-0972 include overflow buffers, privilege escalation, and local execution of code. These consequences can lead to severe ramifications if exploited by malicious actors.

Technical Details of CVE-2023-0972

This section provides detailed technical insights into CVE-2023-0972.

Vulnerability Description

CVE-2023-0972 is classified under CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) and CWE-120 (Buffer Copy without Checking Size of Input). The vulnerability allows for unauthorized users to execute arbitrary code through stack buffer overflow.

Affected Systems and Versions

The affected product is the Z/IP Gateway by Silicon Labs, with specifically highlighted vulnerable version 7.18.01 and earlier. Version 7.18.03 is reported as unaffected by this vulnerability.

Exploitation Mechanism

The vulnerability in SiLabs Z/IP Gateway 7.18.01 and prior versions can be exploited by an unauthenticated attacker within the Z-Wave range. By triggering a stack buffer overflow, the attacker can potentially achieve arbitrary code execution.

Mitigation and Prevention

Understanding how to mitigate and prevent vulnerabilities like CVE-2023-0972 is crucial for maintaining cybersecurity resilience.

Immediate Steps to Take

Organizations should restrict network access to the Z/IP Gateway to authorized users only.
Update the SiLabs Z/IP Gateway to the latest, unaffected version to patch the vulnerability.
Monitor network traffic and behavior for any signs of unauthorized access or exploitation.

Long-Term Security Practices

Regularly update and patch software and firmware to prevent known vulnerabilities.
Conduct regular security assessments and penetration testing to identify weaknesses.
Implement network segmentation to limit the impact of potential breaches.

Patching and Updates

Silicon Labs or relevant vendors should release patches for the affected versions of Z/IP Gateway to address the stack buffer overflow vulnerability. Users are advised to promptly apply these patches to safeguard their systems from potential exploitation.