CVE-2019-18618 : Security Advisory and Response
Learn about CVE-2019-18618, a flaw in Synaptics VFS75xx fingerprint sensors allowing unauthorized access to sensor data. Find mitigation steps and prevention measures here.
A vulnerability in the firmware of Synaptics VFS75xx family fingerprint sensors allows unauthorized access, potentially compromising sensor data confidentiality.
Understanding CVE-2019-18618
This CVE identifies a flaw in the access control mechanism of Synaptics VFS75xx family fingerprint sensors with external flash.
What is CVE-2019-18618?
The vulnerability in the firmware of Synaptics VFS75xx fingerprint sensors, present in versions released before 2019-11-15, enables a local administrator or physical attacker to compromise sensor data confidentiality by injecting an unverified partition table.
The Impact of CVE-2019-18618
Exploiting this vulnerability can lead to unauthorized access to sensitive sensor data, potentially compromising user privacy and security.
Technical Details of CVE-2019-18618
This section provides detailed technical insights into the vulnerability.
Vulnerability Description
The flaw in the access control mechanism of Synaptics VFS75xx fingerprint sensors with external flash allows unauthorized parties to compromise sensor data confidentiality.
Affected Systems and Versions
All versions of Synaptics VFS75xx family fingerprint sensors released before 2019-11-15 are affected by this vulnerability.
Exploitation Mechanism
By injecting an unverified partition table, a local administrator or physical attacker can exploit this vulnerability to compromise the confidentiality of sensor data.
Mitigation and Prevention
Protecting systems from CVE-2019-18618 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update the firmware of Synaptics VFS75xx fingerprint sensors to the latest version released after 2019-11-15.
- Implement strict access controls and monitoring mechanisms to detect unauthorized access attempts.
Long-Term Security Practices
- Regularly monitor and update firmware and security patches for fingerprint sensors.
- Conduct security audits to identify and address potential vulnerabilities in sensor devices.
Patching and Updates
Ensure timely installation of security patches and firmware updates provided by Synaptics to mitigate the vulnerability effectively.