JTEKT TOYOPUC PLCs through 2022-04-29 mishandle authentication. They utilize the CMPLink/TCP protocol (configurable on ports 1024-65534 on either TCP or UDP) for a wide variety of engineering purposes such as starting and stopping the PLC, downloading and uploading projects, and changing configuration settings. This protocol does not have any authentication features, allowing any attacker capable of communicating with the port in question to invoke (a subset of) desired functionality.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2022-07-26T21:04:47

Updated: 2024-08-03T06:33:43.193Z

Reserved: 2022-04-29T00:00:00

Link: CVE-2022-29951

cve-icon Vulnrichment

Updated: 2024-08-03T06:33:43.193Z

cve-icon NVD

Status : Analyzed

Published: 2022-07-26T22:15:10.800

Modified: 2024-02-09T03:16:09.380

Link: CVE-2022-29951

cve-icon Redhat

No data.