CVE-2018-20958 : Security Advisory and Response
Learn about CVE-2018-20958 affecting Tapplock devices before June 12, 2018. Understand the security risk, impact, and mitigation steps to secure your devices.
Tapplock devices prior to June 12, 2018, have a vulnerability where Key1 and SerialNo for unlock operations are derived from the MAC address, posing a security risk.
Understanding CVE-2018-20958
Tapplock devices before June 12, 2018, utilize Key1 and SerialNo from the MAC address for unlock operations within the Bluetooth Low Energy (BLE) subsystem.
What is CVE-2018-20958?
The vulnerability in Tapplock devices allows attackers to exploit the MAC address to facilitate unauthorized unlock operations.
The Impact of CVE-2018-20958
This vulnerability could lead to unauthorized access to Tapplock devices, compromising the security and privacy of users' belongings.
Technical Details of CVE-2018-20958
Tapplock devices are affected by a security flaw that allows unauthorized access due to the way Key1 and SerialNo are derived from the MAC address.
Vulnerability Description
The Bluetooth Low Energy (BLE) subsystem on Tapplock devices before June 12, 2018, relies on Key1 and SerialNo for unlock operations, which are derived from the MAC address.
Affected Systems and Versions
- Product: Tapplock devices
- Vendor: Tapplock
- Versions: All versions before June 12, 2018
Exploitation Mechanism
Attackers can exploit the vulnerability by intercepting the MAC address broadcasted by the device to derive Key1 and SerialNo for unauthorized unlock operations.
Mitigation and Prevention
It is crucial to take immediate steps to secure Tapplock devices and prevent unauthorized access.
Immediate Steps to Take
- Update Tapplock devices to the latest firmware that addresses this vulnerability.
- Avoid using Tapplock devices manufactured before June 12, 2018, if possible.
Long-Term Security Practices
- Regularly update firmware and security patches on Tapplock devices.
- Implement strong, unique passwords and avoid relying solely on MAC addresses for security.
Patching and Updates
- Tapplock has released updates to address this vulnerability; ensure all devices are updated to the latest firmware.