An insecure permission vulnerability exists in the Agasta Easytouch+ version 9.3.97 The device allows unauthorized mobile applications to connect via Bluetooth Low Energy (BLE) without authentication. Once an unauthorized connection is established, legitimate applications are unable to connect, causing a denial of service. The attack requires proximity to the device, making it exploitable from an adjacent network location.
Weakness
A product defines a set of insecure permissions that are inherited by objects that are created by the program.
Potential Mitigations
- Compartmentalize the system to have “safe” areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
- Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
References