CVE-2020-8997 : Vulnerability Insights and Analysis
Learn about CVE-2020-8997, a vulnerability in older generation Abbott FreeStyle Libre sensors allowing remote attackers to gain write access to memory via NFC unlock command. Find mitigation steps here.
Abbott FreeStyle Libre sensors are vulnerable to a specific NFC unlock command, allowing remote attackers to gain write access to memory. This vulnerability does not affect newer versions of the sensor.
Understanding CVE-2020-8997
Older generation Abbott FreeStyle Libre sensors are susceptible to a security flaw that enables unauthorized write access to memory through an NFC unlock command.
What is CVE-2020-8997?
The vulnerability in CVE-2020-8997 allows attackers in close proximity to exploit a specific NFC unlock command, granting them unauthorized write access to the sensor's memory. Notably, this vulnerability is absent in the FreeStyle Libre 14-day version in the U.S. and FreeStyle Libre 2 outside the U.S.
The Impact of CVE-2020-8997
The security issue poses a risk of unauthorized access to sensitive data stored in the Abbott FreeStyle Libre sensor, potentially compromising user privacy and data integrity.
Technical Details of CVE-2020-8997
Abbott FreeStyle Libre sensors affected by CVE-2020-8997 have the following technical details:
Vulnerability Description
The vulnerability allows remote attackers within close proximity to enable write access to memory via a specific NFC unlock command.
Affected Systems and Versions
- Product: Abbott FreeStyle Libre sensors
- Vendor: Abbott
- Versions: Older generation sensors
Exploitation Mechanism
Attackers exploit a specific NFC unlock command to gain unauthorized write access to the sensor's memory.
Mitigation and Prevention
To address CVE-2020-8997, consider the following mitigation strategies:
Immediate Steps to Take
- Update to the latest version of Abbott FreeStyle Libre sensors.
- Avoid using the vulnerable older generation sensors in environments with potential attackers nearby.
Long-Term Security Practices
- Regularly check for security updates and patches from Abbott.
- Implement NFC security measures to prevent unauthorized access to the sensor's memory.
Patching and Updates
Ensure that all Abbott FreeStyle Libre sensors are updated with the latest firmware and security patches to mitigate the risk of unauthorized access.