CVE-2023-21647 : Vulnerability Insights and Analysis

This CVE record outlines a vulnerability identified as CVE-2023-21647, with a focus on the information disclosure issue in Bluetooth due to improper input validation. The vulnerability was published on August 8, 2023, by Qualcomm, Inc.

Understanding CVE-2023-21647

This section delves deeper into the details of CVE-2023-21647, shedding light on its impact, technical aspects, affected systems, and mitigation strategies.

What is CVE-2023-21647?

CVE-2023-21647 involves an information disclosure vulnerability in Bluetooth that arises when an Generic Attribute (GATT) packet is received due to inadequate input validation. This could potentially lead to the exposure of sensitive information during communication.

The Impact of CVE-2023-21647

The impact of this vulnerability is significant, with a high confidentiality impact. Attackers could exploit this flaw to obtain critical data transmitted over Bluetooth connections, compromising the privacy and security of affected systems.

Technical Details of CVE-2023-21647

In this section, we delve into the technical specifics of CVE-2023-21647, including the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability stems from improper input validation in Bluetooth, specifically when handling GATT packets. This flaw allows malicious actors to intercept and retrieve sensitive information transmitted over Bluetooth connections.

Affected Systems and Versions

Various products under the Snapdragon platform by Qualcomm, Inc., are impacted by CVE-2023-21647. Affected versions include QCA6390, QCA6391, QCA6426, QCA6436, SD 8 Gen1 5G, SD865 5G, and more. Organizations relying on these configurations are advised to take immediate action to mitigate the risk.

Exploitation Mechanism

The exploitation of this vulnerability involves crafting malicious GATT packets and sending them to target devices with the aim of triggering the improper input validation flaw. Upon successful exploitation, attackers can intercept sensitive data transmitted over Bluetooth connections.

Mitigation and Prevention

To address CVE-2023-21647 and enhance the security posture of affected systems, proactive mitigation measures and long-term security practices should be implemented.

Immediate Steps to Take

Organizations utilizing the affected Qualcomm Snapdragon products must apply the security patches and updates provided by the vendor promptly. Additionally, users should enforce strict security policies to minimize the risk of information disclosure via Bluetooth.

Long-Term Security Practices

Implementing robust security protocols, conducting regular security assessments, and staying informed about emerging threats in Bluetooth technology are crucial for maintaining a resilient cybersecurity framework.

Patching and Updates

Qualcomm has released security bulletins containing patches and updates to address CVE-2023-21647. System administrators and users are strongly encouraged to apply these patches promptly to mitigate the vulnerability and safeguard Bluetooth communications against exploitation.