CVE-2022-31364 : Exploit Details and Defense Strategies

This article provides detailed information about CVE-2022-31364, a Buffer Overflow vulnerability in the Cypress Bluetooth Mesh SDK.

Understanding CVE-2022-31364

CVE-2022-31364 is a Buffer Overflow vulnerability in the Cypress Bluetooth Mesh SDK that allows attackers to execute arbitrary code remotely by triggering an out-of-bound write vulnerability.

What is CVE-2022-31364?

The Cypress Bluetooth Mesh SDK BSA0107_05.01.00-BX8-AMESH-08 is affected by a Buffer Overflow vulnerability in the lower_transport_layer_on_seg function. Attackers can exploit this issue by sending segmented packets with inconsistent SegN.

The Impact of CVE-2022-31364

The impact of CVE-2022-31364 is the ability to execute arbitrary code remotely, posing a significant threat to the security of affected systems.

Technical Details of CVE-2022-31364

CVE-2022-31364 is scored with a CVSS base score of 8.2, indicating a high severity vulnerability with a low impact on integrity and availability but a high impact on confidentiality. The vulnerability requires low privileges and user interaction is not needed for exploitation.

Vulnerability Description

The vulnerability in the lower_transport_layer_on_seg function allows for an out-of-bound write, leading to a Buffer Overflow condition that can be exploited remotely.

Affected Systems and Versions

The affected component is the Cypress Bluetooth Mesh SDK BSA0107_05.01.00-BX8-AMESH-08. All versions are impacted by this vulnerability.

Exploitation Mechanism

Attackers can trigger this vulnerability by sending a series of segmented packets with inconsistent SegN, exploiting the out-of-bound write vulnerability in the lower_transport_layer_on_seg function.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2022-31364 and implement long-term security practices to prevent such vulnerabilities in the future.

Immediate Steps to Take

Users are advised to apply the necessary patches and updates provided by Cypress to address this vulnerability.

Long-Term Security Practices

Implement secure coding practices, perform regular security assessments, and stay informed about security updates and patches to enhance the overall security posture.

Patching and Updates

Keep systems up to date with the latest patches and security updates to protect against known vulnerabilities and reduce the risk of exploitation.