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CVE-2022-45789

CRITICALCVSS 9.8/10EPSS 1.44%

Last modified

CVE-2022-45789 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A CWE-294: Authentication Bypass by Capture-replay vulnerability exists that could cause execution of unauthorized Modbus functions on the controller when hijacking an authenticated Modbus session. Affected Products: EcoStruxure Control Expert (All Versions), EcoStruxure Process Expert (All Versions), Modicon M340 CPU - part numbers BMXP34* (All Versions), Modicon M580 CPU - part numbers BMEP* and BMEH* (All Versions), Modicon M580 CPU Safety - part numbers BMEP58*S and BMEH58*S (All Versions) . EPSS estimates a 1.44% chance of exploitation in the next 30 days.

Description

A CWE-294: Authentication Bypass by Capture-replay vulnerability exists that could cause execution of unauthorized Modbus functions on the controller when hijacking an authenticated Modbus session. Affected Products: EcoStruxure Control Expert (All Versions), EcoStruxure Process Expert (All Versions), Modicon M340 CPU - part numbers BMXP34* (All Versions), Modicon M580 CPU - part numbers BMEP* and BMEH* (All Versions), Modicon M580 CPU Safety - part numbers BMEP58*S and BMEH58*S (All Versions)

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
1.44%

69.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Schneider-ElectricEcostruxure Control ExpertAll versions
Schneider-ElectricEcostruxure Process Expert<= 2020
Schneider-ElectricModicon M340 Bmxp341000 FirmwareAll versions
Schneider-ElectricModicon M340 Bmxp342000 FirmwareAll versions
Schneider-ElectricModicon M340 Bmxp342010 FirmwareAll versions
Schneider-ElectricModicon M340 Bmxp3420102 FirmwareAll versions
Schneider-ElectricModicon M340 Bmxp342020 FirmwareAll versions
Schneider-ElectricModicon M340 Bmxp342020h FirmwareAll versions
Schneider-ElectricModicon M340 Bmxp342030 FirmwareAll versions
Schneider-ElectricModicon M340 Bmxp3420302 FirmwareAll versions
Schneider-ElectricModicon M340 Bmxp3420302h FirmwareAll versions
Schneider-ElectricModicon M340 Bmxp342030h FirmwareAll versions
Schneider-ElectricModicon M580 Bmep581020 FirmwareAll versions
Schneider-ElectricModicon M580 Bmep581020h FirmwareAll versions
Schneider-ElectricModicon M580 Bmep582020 FirmwareAll versions
Schneider-ElectricModicon M580 Bmep582020h FirmwareAll versions
Schneider-ElectricModicon M580 Bmep582040 FirmwareAll versions
Schneider-ElectricModicon M580 Bmep582040h FirmwareAll versions
Schneider-ElectricModicon M580 Bmep582040s FirmwareAll versions
Schneider-ElectricModicon M580 Bmep583020 FirmwareAll versions
Schneider-ElectricModicon M580 Bmep583040 FirmwareAll versions
Schneider-ElectricModicon M580 Bmep584020 FirmwareAll versions
Schneider-ElectricModicon M580 Bmep584040 FirmwareAll versions
Schneider-ElectricModicon M580 Bmep584040s FirmwareAll versions
Schneider-ElectricModicon M580 Bmep585040 FirmwareAll versions
Schneider-ElectricModicon M580 Bmep585040c FirmwareAll versions
Schneider-ElectricModicon M580 Bmep586040 FirmwareAll versions
Schneider-ElectricModicon M580 Bmep586040c FirmwareAll versions
Schneider-ElectricModicon M580 Bmeh582040 FirmwareAll versions
Schneider-ElectricModicon M580 Bmeh582040c FirmwareAll versions
Schneider-ElectricModicon M580 Bmeh582040s FirmwareAll versions
Schneider-ElectricModicon M580 Bmeh584040 FirmwareAll versions
Schneider-ElectricModicon M580 Bmeh584040c FirmwareAll versions
Schneider-ElectricModicon M580 Bmeh584040s FirmwareAll versions
Schneider-ElectricModicon M580 Bmeh586040 FirmwareAll versions
Schneider-ElectricModicon M580 Bmeh586040c FirmwareAll versions
Schneider-ElectricModicon M580 Bmeh586040s FirmwareAll versions

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-45789?
A CWE-294: Authentication Bypass by Capture-replay vulnerability exists that could cause execution of unauthorized Modbus functions on the controller when hijacking an authenticated Modbus session. Affected Products: EcoStruxure Control Expert (All Versions), EcoStruxure Process Expert (All Versions), Modicon M340 CPU - part numbers BMXP34* (All Versions), Modicon M580 CPU - part numbers BMEP* and BMEH* (All Versions), Modicon M580 CPU Safety - part numbers BMEP58*S and BMEH58*S (All Versions)
How severe is CVE-2022-45789?
CVE-2022-45789 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.44% probability of exploitation in the next 30 days.
How do I fix CVE-2022-45789?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST