T2200h Firmware Security Vulnerabilities

CVE-2019-12789

An issue was discovered on Actiontec T2200H T2200H-31.128L.08 devices, as distributed by Telus. By attaching a UART adapter to the UART pins on the system board, an attacker can use a special key sequence (Ctrl-) to obtain a shell with root privileges. After gaining root access, the attacker can...