The Emerson DeltaV Distributed Control System (DCS) controllers and IO cards through 2022-04-29 misuse passwords. FTP has hardcoded credentials (but may often be disabled in production). This affects S-series, P-series, and CIOC/EIOC nodes. NOTE: this is different from CVE-2014-2350.

Emerson OpenBSI through 2022-04-29 uses weak cryptography. It is an engineering environment for the ControlWave and Bristol Babcock line of RTUs. DES with hardcoded cryptographic keys is used for protection of certain system credentials, engineering files, and sensitive utilities.

A flaw was found in the python-scciclient when making an HTTPS connection to a server where the server’s certificate would not be verified. This issue opens up the connection to possible Man-in-the-middle (MITM) attacks.

Emerson OpenBSI through 2022-04-29 mishandles credential storage. It is an engineering environment for the ControlWave and Bristol Babcock line of RTUs. This environment provides access control functionality through user authentication and privilege management. The credentials for various users are stored insecurely in the SecUsers.ini file by using a simple string transformation rather than a cryptographic mechanism.

JTEKT TOYOPUC PLCs through 2022-04-29 do not ensure data integrity. They utilize the unauthenticated CMPLink/TCP protocol for engineering purposes, including downloading projects and control logic to the PLC. Control logic is downloaded to the PLC on a block-by-block basis with a given memory address and a blob of machine code. The logic that is downloaded to the PLC is not cryptographically authenticated, allowing an attacker to execute arbitrary machine code on the PLC’s CPU module in the context of the runtime. In the case of the PC10G-CPU, and likely for other CPU modules of the TOYOPUC family, a processor without MPU or MMU is used and this no memory protection or privilege-separation capabilities are available, giving an attacker full control over the CPU.

The Emerson DeltaV Distributed Control System (DCS) through 2022-04-29 mishandles authentication. It utilizes several proprietary protocols for a wide variety of functionality. These protocols include Firmware upgrade (18508/TCP, 18518/TCP); Plug-and-Play (18510/UDP); Hawk services (18507/UDP); Management (18519/TCP); Cold restart (18512/UDP); SIS communications (12345/TCP); and Wireless Gateway Protocol (18515/UDP). None of these protocols have any authentication features, allowing any attacker capable of communicating with the ports in question to invoke (a subset of) desired functionality.