SOYAL Biometric Access Control System 5.0 Master Code Disclosure

Posted on 19 March 2021

The controller in SOYAL Biometric Access Control System version 5.0 suffers from a cleartext transmission of sensitive information. This allows interception of the HTTP traffic and disclose the Master code and the Arming code via a man-in-the-middle attack. An attacker can obtain these codes to enter into the controller's Programming mode and bypass physical security controls in place.