CVE-2023-2002 : Vulnerability Insights and Analysis

This CVE record pertains to a vulnerability found in the HCI sockets implementation in the Linux Kernel, allowing unauthorized execution of management commands in Bluetooth communication.

Understanding CVE-2023-2002

This section delves into the details and impact of CVE-2023-2002.

What is CVE-2023-2002?

CVE-2023-2002 is a vulnerability in the Linux Kernel's HCI sockets implementation, specifically due to a missing capability check in net/bluetooth/hci_sock.c. This flaw enables attackers to execute management commands without authorization, thereby jeopardizing the confidentiality, integrity, and availability of Bluetooth communication.

The Impact of CVE-2023-2002

The exploitation of CVE-2023-2002 could lead to unauthorized access to Bluetooth devices, potentially allowing malicious actors to manipulate communication, intercept sensitive data, or disrupt Bluetooth-enabled services.

Technical Details of CVE-2023-2002

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

Vulnerability Description

The vulnerability in the HCI sockets implementation of the Linux Kernel arises from a missing capability check, enabling attackers to execute management commands without proper authorization.

Affected Systems and Versions

The affected product is the Kernel, specifically versions prior to Kernel 6.4-rc1. Systems running these versions are vulnerable to the exploit associated with CVE-2023-2002.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending crafted input to the Linux Kernel's HCI sockets, bypassing necessary capability checks and gaining unauthorized access to execute management commands in Bluetooth communication.

Mitigation and Prevention

In order to mitigate the risks posed by CVE-2023-2002, consider the following steps for immediate response and long-term security practices.

Immediate Steps to Take

Update to a patched version of the Kernel that addresses the vulnerability.
Implement strict access controls and authorization mechanisms for Bluetooth communication.
Monitor and audit Bluetooth-related activities for any suspicious behavior.

Long-Term Security Practices

Keep systems updated with the latest security patches to address known vulnerabilities promptly.
Conduct regular security assessments and penetration testing to identify and remediate potential security gaps.
Educate users and administrators on secure usage practices for Bluetooth devices and communication.

Patching and Updates

Ensure that the Kernel is updated to version 6.4-rc1 or later to eliminate the vulnerability associated with CVE-2023-2002. Regularly check for security advisories and apply patches as recommended by the Linux Kernel developers to maintain a secure environment.