Cyber Resilience

CVE-2022-45794

High

Published: 10 January 2024

Published
10 January 2024
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
EPSS Score 0.0017 38.5th percentile
Risk Priority 17 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2022-45794 is a high-severity Missing Authentication for Critical Function (CWE-306) vulnerability in Omron Sysmac Cj2H-Cpu64-Eip Firmware. Its CVSS base score is 8.6 (High).

Operationally, ranked at the 38.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

omron
sysmac cj2h-cpu64-eip firmware
all versions
omron
sysmac cj2h-cpu64 firmware
all versions
omron
sysmac cj2h-cpu65-eip firmware
all versions
omron
sysmac cj2h-cpu65 firmware
all versions
omron
sysmac cj2h-cpu66-eip firmware
all versions
omron
sysmac cj2h-cpu66 firmware
all versions
omron
sysmac cj2h-cpu67-eip firmware
all versions
omron
sysmac cj2h-cpu67 firmware
all versions
omron
sysmac cj2h-cpu68-eip firmware
all versions
omron
sysmac cj2h-cpu68 firmware
all versions
+31 more product configuration(s) — see NVD for full list

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-306

Requires established identification and authentication to unlock, mitigating missing authentication for continued system access.

addresses: CWE-306

Requiring identification and rationale for actions allowed without authentication ensures critical functions are not left unprotected by forcing review of authentication requirements.

addresses: CWE-306

Authorizing mobile device connections to organizational systems ensures authentication is performed for this critical access function.

addresses: CWE-306

Guarantees critical functions are protected by mandatory invocation of the access control mechanism.

addresses: CWE-306

Auditing sessions makes it possible to detect access to critical functions without required authentication.

addresses: CWE-306

The assessment process confirms authentication is present and effective for critical functions, preventing exploitation from missing authentication.

addresses: CWE-306

Certification assesses that critical functions have required authentication controls in place.

addresses: CWE-306

Disabling non-essential functions and services eliminates the need to secure them, reducing exposure from missing authentication on unnecessary components.

References