Motorola MBTS Site Controller Firmware

Motorola MBTS Site Controller accepts hard-coded backdoor password. The Motorola MBTS Site Controller Man Machine Interface (MMI), allowing for service technicians to diagnose and configure the device, accepts a hard-coded backdoor password that cannot be changed or disabled.

Motorola MBTS Site Controller fails to check firmware update authenticity. The Motorola MBTS Site Controller lacks cryptographic signature validation for firmware update packages, allowing an authenticated attacker to gain arbitrary code execution, extract secret key material, and/or leave a persistent implant on the device.

Motorola EBTS/MBTS Site Controller drops to debug prompt on unhandled exception. The Motorola MBTS Site Controller exposes a debug prompt on the device's serial port in case of an unhandled exception. This allows an attacker with physical access that is able to trigger such an exception to extract secret key material and/or gain arbitrary code execution on the device.