CWE-302 Authentication Bypass by Assumed-Immutable Data in AliveCor Kardia App version 5.17.1-754993421 and prior on Android allows an unauthenticated attacker with physical access to the Android device containing the app to bypass application authentication and alter information in the app.

The physical IoT device of the AliveCor's KardiaMobile, a smartphone-based personal electrocardiogram (EKG) has no encryption for its data-over-sound protocols. Exploiting this vulnerability could allow an attacker to read patient EKG results or create a denial-of-service condition by emitting sounds at similar frequencies as the device, disrupting the smartphone microphone’s ability to accurately read the data. To carry out this attack, the attacker must be close (less than 5 feet) to pick up and emit sound waves.