CVE-2023-45866 Explained : Impact and Mitigation

A security vulnerability has been identified in Bluetooth HID Hosts within BlueZ that could allow an unauthenticated Peripheral role HID device to establish an encrypted connection and inject HID messages without user authorization.

Understanding CVE-2023-45866

This CVE affects the BlueZ package version 5.64-0ubuntu1 in Ubuntu 22.04LTS, potentially leading to unauthorized access through Bluetooth connections.

What is CVE-2023-45866?

CVE-2023-45866 pertains to the ability of an unauthenticated Peripheral role HID device to inject HID messages and establish encrypted connections within Bluetooth HID Hosts in BlueZ, circumventing user interaction authorization in the Central role.

The Impact of CVE-2023-45866

The vulnerability may result in unauthorized access and data manipulation through Bluetooth connections, posing a risk to the confidentiality and integrity of affected systems.

Technical Details of CVE-2023-45866

This section provides insight into the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The issue allows an unauthenticated device to access and inject HID messages within Bluetooth HID Hosts of BlueZ, potentially leading to security breaches and unauthorized device control.

Affected Systems and Versions

The CVE impacts BlueZ package version 5.64-0ubuntu1 in Ubuntu 22.04LTS, and potentially other systems utilizing the vulnerable Bluetooth HID Hosts.

Exploitation Mechanism

Exploiting this vulnerability involves leveraging the unauthenticated access to establish encrypted connections and inject HID messages, bypassing user authorization.

Mitigation and Prevention

To safeguard systems from potential exploitation of CVE-2023-45866, immediate steps, long-term security practices, and the importance of patching and updates are crucial.

Immediate Steps to Take

Deploying any available patches, restricting Bluetooth device connections, and monitoring Bluetooth activities can mitigate immediate risks associated with the vulnerability.

Long-Term Security Practices

Implementing regular security updates, conducting security assessments, and educating users on Bluetooth security best practices can enhance the long-term security posture.

Patching and Updates

Stay informed about security advisories and patches released by vendors, ensuring prompt application of updates to address known vulnerabilities.