CVEvulnerability

CVE-2022-29951

9.1 CRITICAL Published 2022-07-26 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2022-07-26
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.1 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
9.1 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Weaknesses
CWE-306

Description

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.

Affected configurations

• jtekt pc10g-cpu tcc-6353 firmware • jtekt pc10ge tcc-6464 firmware • jtekt pc10p tcc-6372 firmware • jtekt pc10p-dp tcc-6726 firmware • jtekt pc10p-dp-io tcc-6752 firmware • jtekt pc10b-p tcc-6373 firmware • jtekt pc10b tcc-1021 firmware • jtekt pc10e tcc-4737 firmware • jtekt pc10el tcc-4747 firmware • jtekt plus cpu tcc-6740 firmware • jtekt pc3jx tcc-6901 firmware • jtekt pc3jx-d tcc-6902 firmware • jtekt pc10pe tcc-1101 firmware • jtekt pc10pe-1616p tcc-1102 firmware • jtekt pcdl tkc-6688 firmware • jtekt nano 10gx tuc-1157 firmware • jtekt nano cpu tuc-6941 firmware

Related

Weakness · CWE (1)

  • CWE-306 Missing Authentication for Critical Functionality weakness

Referenced by CWE · observed example (2)

  • CWE-287 Improper Authentication weakness
  • CWE-306 Missing Authentication for Critical Functionality weakness

References