Auth bypass in Omron Cj-series And Cs-series Cpu Modules
CVE-2022-45794
An attacker with network access to the affected PLC (CJ-series and CS-series PLCs, all versions) may use a network protocol to read and write files on the PLC internal memory and memory card.
Vulnerability class: Broken Authentication
EPSS: 0.005 (41.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N.
Affected products
- Omron Cj-series And Cs-series Cpu Modules — versions 0
- Omron Sysmac_cj1g-cpu42p
- Omron Sysmac_cj1g-cpu42p_firmware
- Omron Sysmac_cj1g-cpu43p
- Omron Sysmac_cj1g-cpu43p_firmware
- Omron Sysmac_cj1g-cpu44p
- Omron Sysmac_cj1g-cpu44p_firmware
- Omron Sysmac_cj1g-cpu45p
- Omron Sysmac_cj1g-cpu45p_firmware
- Omron Sysmac_cj2h-cpu64
Weakness classification (CWE)
References
- ot-cert@dragos.com (Vendor Advisory)
- ot-cert@dragos.com (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-45794?
- CVE-2022-45794 is a high-severity vulnerability in Omron Cj-series And Cs-series Cpu Modules, classified under Missing Authentication for Critical Function. CVSS score: 8.6/10. Published 2024-01-10.
- How severe is CVE-2022-45794?
- High severity. CVSS v3 base score is 8.6 out of 10.