CVE-2023-1935

ROC800-Series RTU devices are vulnerable to an authentication bypass, which could allow an attacker to gain unauthorized access to data or control of the device and cause a denial-of-service condition.

The Emerson ROC and FloBoss RTU product lines through 2022-05-02 perform insecure filesystem operations. They utilize the ROC protocol (4000/TCP, 5000/TCP) for communications between a master terminal and RTUs. Opcode 203 of this protocol allows a master terminal to transfer files to and from the flash filesystem and carrying out arbitrary file and directory read, write, and delete operations.