CVE-2020-10876 Explained : Impact and Mitigation

The OKLOK (3.1.1) mobile companion app for Fingerprint Bluetooth Padlock FB50 (2.3) has a vulnerability that allows attackers to bypass email verification and change victim account passwords.

Understanding CVE-2020-10876

The vulnerability in the OKLOK mobile companion app allows for brute-forcing the four-digit verification code, enabling unauthorized password changes.

What is CVE-2020-10876?

The OKLOK app does not properly implement timeout on the verification code, allowing attackers to guess the code and change passwords without email verification.

The Impact of CVE-2020-10876

This vulnerability enables attackers to compromise user accounts by bypassing email verification and gaining unauthorized access.

Technical Details of CVE-2020-10876

The following technical details outline the specifics of the CVE.

Vulnerability Description

OKLOK app lacks proper timeout implementation on the four-digit verification code
Allows brute-forcing of the verification code
Permits unauthorized password changes without email verification

Affected Systems and Versions

OKLOK (3.1.1) mobile companion app
Fingerprint Bluetooth Padlock FB50 (2.3)

Exploitation Mechanism

Attackers can repeatedly attempt verification codes until successful
Bypass email verification to change victim account passwords

Mitigation and Prevention

To address CVE-2020-10876, consider the following mitigation strategies.

Immediate Steps to Take

Update the OKLOK app to the latest version
Change passwords regularly and use strong, unique passwords
Enable two-factor authentication where available

Long-Term Security Practices

Regularly monitor account activity for any unauthorized changes
Educate users on the importance of password security and verification processes

Patching and Updates

Stay informed about security updates for the OKLOK app
Apply patches promptly to address known vulnerabilities