Baicells Nova 227, Nova 233, and Nova 243 LTE TDD eNodeB and Nova 246 devices with firmware through RTS/RTD 3.6.6 are vulnerable to remote shell code exploitation via HTTP command injections. Commands are executed using pre-login execution and executed with root permissions. The following methods below have been tested and validated by a 3rd party analyst and has been confirmed exploitable special thanks to Rustam Amin for providing the steps to reproduce.
CWE-79, CWE-79