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.
Description: CAPEC-31 Accessing/Intercepting/Modifying HTTP Cookies
Solutions
Baicells recommends that all customers currently running an earlier version of RTS/RTD upgrade their products to the 3.7.11.6 firmware.
Configurations
Nova eNB would need to be configured and running on 3.6.6 firmware and older along with being accessible on the internal network or public network. If the Web interface is enabled it will allow users to exploit using the above method.