CVE-2020-26555 : What You Need to Know

Bluetooth legacy BR/EDR PIN code pairing vulnerability allows unauthenticated nearby devices to spoof peer device BD_ADDR.

Understanding CVE-2020-26555

Bluetooth Core Specification 1.0B through 5.2 is affected by a PIN code pairing vulnerability.

What is CVE-2020-26555?

The vulnerability enables nearby unauthenticated devices to spoof the BD_ADDR of a peer device during pairing without requiring knowledge of the PIN.

The Impact of CVE-2020-26555

This vulnerability could lead to unauthorized access and potential security breaches as attackers can pair with devices without proper authentication.

Technical Details of CVE-2020-26555

Bluetooth legacy BR/EDR PIN code pairing vulnerability details.

Vulnerability Description

The flaw in Bluetooth Core Specification versions 1.0B through 5.2 allows nearby unauthenticated devices to spoof a peer device's BD_ADDR during pairing, bypassing the need for a PIN.

Affected Systems and Versions

Bluetooth Core Specification 1.0B through 5.2

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging the lack of authentication requirements during the pairing process to spoof the BD_ADDR of a peer device.

Mitigation and Prevention

Steps to mitigate the CVE-2020-26555 vulnerability.

Immediate Steps to Take

Disable Bluetooth when not in use to prevent unauthorized pairing.
Regularly update Bluetooth firmware to patch known vulnerabilities.

Long-Term Security Practices

Implement strong encryption protocols for Bluetooth connections.
Educate users on secure pairing practices to avoid unauthorized access.

Patching and Updates

Apply security patches provided by device manufacturers to address the vulnerability.