Multiple versions of RG-EST300 provided by Ruijie Networks provide SSH server functionality. It is not documented in the manual, and enabled in the initial configuration. Anyone with the knowledge of the related credentials can log in to the affected device, leading to information disclosure, altering the system configurations, or causing a denial of service (DoS) condition.
The product contains functionality that is not documented, not part of the specification, and not accessible through an interface or command sequence that is obvious to the product’s users or administrators.