CVE-2021-46145 : What You Need to Know

The keyfob subsystem in Honda Civic 2012 vehicles is vulnerable to a replay attack for unlocking due to a non-expiring rolling code and counter resynchronization.

Understanding CVE-2021-46145

This CVE involves a security issue in the keyfob subsystem of Honda Civic 2012 vehicles.

What is CVE-2021-46145?

The vulnerability allows an attacker to perform a replay attack to unlock affected vehicles by exploiting the non-expiring rolling code and counter resynchronization.

The Impact of CVE-2021-46145

The vulnerability poses a security risk as it enables unauthorized access to the vehicles, compromising their security and potentially facilitating theft.

Technical Details of CVE-2021-46145

This section provides more technical insights into the CVE.

Vulnerability Description

The keyfob subsystem vulnerability in Honda Civic 2012 vehicles permits a replay attack for unlocking due to inadequate rolling code and counter resynchronization mechanisms.

Affected Systems and Versions

Product: Honda Civic 2012 vehicles
Version: Not specified

Exploitation Mechanism

The vulnerability can be exploited by intercepting and replaying the signals transmitted between the keyfob and the vehicle, leveraging the weak rolling code and synchronization.

Mitigation and Prevention

Protect yourself from this vulnerability with the following measures:

Immediate Steps to Take

Avoid relying solely on the keyfob for vehicle security.
Implement additional physical security measures for the vehicle.

Long-Term Security Practices

Regularly update vehicle software to patch security vulnerabilities.
Consider using aftermarket security solutions to enhance vehicle protection.

Patching and Updates

Update your Honda Civic 2012 vehicle with any security patches or fixes provided by the manufacturer to address this keyfob vulnerability.