Omron FINS memory protection susceptible to bruteforce
CVE-2022-45790

8.6HIGH

Key Information:

Vendor

Omron

Status
Cj-series And Cs-series Cpu Modules
Vendor
CVE Published:
22 January 2024

What is CVE-2022-45790?

The Omron FINS protocol features an authentication mechanism designed to secure access to critical memory regions. However, this authentication can be compromised through brute force attacks, enabling unauthorized users to access protected memory. Gaining access to these memory areas poses a significant risk as it allows adversaries to potentially overwrite important values, jeopardizing the integrity of programmed logic and overall automation system functionality.

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Affected Version(s)

CJ-series and CS-series CPU modules CJ2H 0.0 < 1.5

CJ-series and CS-series CPU modules CJ2M 0.0 < 2.1

CJ-series and CS-series CPU modules CJ1G 0.0 < 4.1

References

https://www.cisa.gov/news-events/ics-advisories/icsa-23-2...
https://www.fa.omron.co.jp/product/security/assets/pdf/en...
https://www.dragos.com/advisory/omron-plc-and-engineering...

CVSS V3.1

Score:
8.6
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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