[Japanese]

JVNDB-2024-003242

OMRON NJ/NX series vulnerable to insufficient verification of data authenticity

Overview

Machine Automation Controller NJ/NX series provided by OMRON Corporation contain an issue with insufficient verification of data authenticity (CWE-345).

OMRON Corporation reported this vulnerability to JPCERT/CC to notify users of its solution through JVN.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 4.8 (Medium) [Other]
  • Attack Vector: Network
  • Attack Complexity: High
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
  • Confidentiality Impact: Low
  • Integrity Impact: Low
  • Availability Impact: None
Affected Products


OMRON Corporation
  • Machine automation controller NJ series CPU Unit all versions
  • Machine automation controller NX series CPU Unit all versions

Impact

If a user program in the affected product is altered, the product may not be able to detect the alteration.
Solution

[Use "User Program Transfer with No Restoration Information" (*1) ]
(*1) See the following manual provided by the developer for "User Program Transfer with No Restoration Information"

* NJ/NX-series CPU unit Software User's Manual (W501)

[Apply workaround]
The developer recommends users should apply the following mitigations or workaround.

* Restrict access from untrusted network devices
* Isolate the product from IT network by using firewall (such as closing unused communication ports, restricting communication hosts, etc.)

For more information, refer to the information provided by the developer .
Vendor Information

OMRON Corporation
CWE (What is CWE?)

  1. Insufficient Verification of Data Authenticity(CWE-345) [Other]
CVE (What is CVE?)

  1. CVE-2024-33687
References

  1. JVN : JVNVU#92504444
Revision History

  • [2024/05/28]
      Web page was published