CVE-2019-12797 : Vulnerability Insights and Analysis

An ELM327 OBD2 Bluetooth device that is a replica has a pre-set PIN, which allows for the execution of unauthorized commands on a vehicle's OBD-II bus.

Understanding CVE-2019-12797

A clone version of an ELM327 OBD2 Bluetooth device has a hardcoded PIN, leading to arbitrary commands to an OBD-II bus of a vehicle.

What is CVE-2019-12797?

This CVE refers to a vulnerability in a replica ELM327 OBD2 Bluetooth device that comes with a pre-set PIN, enabling attackers to send unauthorized commands to a vehicle's OBD-II bus.

The Impact of CVE-2019-12797

The vulnerability allows malicious actors to execute arbitrary commands on a vehicle's OBD-II bus, potentially leading to unauthorized access and control over critical vehicle functions.

Technical Details of CVE-2019-12797

Vulnerability Description

The ELM327 OBD2 Bluetooth device clone has a hardcoded PIN, making it susceptible to unauthorized command execution.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: Not applicable

Exploitation Mechanism

Attackers can exploit the pre-set PIN in the replica ELM327 OBD2 Bluetooth device to send unauthorized commands to the vehicle's OBD-II bus.

Mitigation and Prevention

Immediate Steps to Take

Avoid using replica ELM327 OBD2 Bluetooth devices with pre-set PINs.
Regularly monitor and update the firmware of OBD2 devices to patch known vulnerabilities.

Long-Term Security Practices

Implement strong authentication mechanisms for OBD2 devices to prevent unauthorized access.
Conduct security assessments and penetration testing on OBD2 devices to identify and address potential vulnerabilities.

Patching and Updates

Apply patches and updates provided by the device manufacturer to address security flaws and enhance device security.