CVE-2022-30904 : Exploit Details and Defense Strategies

A buffer overflow vulnerability in Bestechnic Bluetooth Mesh SDK (BES2300) V1.0 poses a significant risk due to a lack of validation on the SegN field during provisioning.

Understanding CVE-2022-30904

This section will detail the nature and impact of the CVE-2022-30904 vulnerability.

What is CVE-2022-30904?

The CVE-2022-30904 vulnerability exists in the Bestechnic Bluetooth Mesh SDK (BES2300) V1.0, where attackers can trigger a buffer overflow by exploiting the lack of validation on the SegN field during provisioning.

The Impact of CVE-2022-30904

The impact of this vulnerability is rated as HIGH, with a CVSS base score of 8.2. It can result in compromised confidentiality and potentially lead to unauthorized access.

Technical Details of CVE-2022-30904

This section will delve into the technical aspects of CVE-2022-30904 to provide a better understanding of the vulnerability.

Vulnerability Description

The buffer overflow vulnerability arises from the absence of checks on the SegN field during the Transaction Start PDU, allowing for potential exploitation by malicious actors.

Affected Systems and Versions

All instances using Bestechnic Bluetooth Mesh SDK (BES2300) V1.0 are susceptible to this vulnerability, impacting systems that implement the affected SDK version.

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting specific input data to trigger a buffer overflow condition, potentially leading to arbitrary code execution.

Mitigation and Prevention

To safeguard systems from the risks associated with CVE-2022-30904, immediate actions and long-term security practices are essential.

Immediate Steps to Take

Organizations should apply security patches or updates provided by the SDK vendor promptly.
Implement network segmentation and access controls to limit the reach of potential attacks.

Long-Term Security Practices

Conduct regular security assessments and code reviews to identify and address vulnerabilities proactively.
Stay informed about security best practices and industry trends related to Bluetooth technology.

Patching and Updates

Regularly check for security advisories and updates from the SDK vendor to ensure that systems are protected against known vulnerabilities.