CVE-2023-1424

Denial-of-Service and Remote Code Execution Vulnerability in MELSEC Series CPU module

Description

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in Mitsubishi Electric Corporation MELSEC iQ-F Series CPU modules and MELSEC iQ-R Series CPU modules allows a remote unauthenticated attacker to cause a denial of service (DoS) condition or execute malicious code on a target product by sending specially crafted packets. A system reset of the product is required for recovery from a denial of service (DoS) condition and malicious code execution.

References

Link	Tags
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-003_en.pdf	patch vendor advisory
https://jvn.jp/vu/JVNVU94650413	third party advisory
https://www.cisa.gov/news-events/ics-advisories/icsa-23-143-03	third party advisory us government resource
https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1727

Frequently Asked Questions

What is the severity of CVE-2023-1424?: CVE-2023-1424 has been scored as a critical severity vulnerability.
How to fix CVE-2023-1424?: To fix CVE-2023-1424, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-1424 being actively exploited in the wild?: It is possible that CVE-2023-1424 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-1424?: CVE-2023-1424 affects Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MT/ES, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MT/ES, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-80MT/ES, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MR/ES, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MR/ES, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-80MR/ES, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MT/DS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MT/DS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-80MT/DS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MR/DS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MR/DS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-80MR/DS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MT/ESS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MT/ESS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-80MT/ESS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-32MT/DSS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-64MT/DSS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5U-80MT/DSS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MT/D, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-64MT/D, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-96MT/D, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MT/DSS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-64MT/DSS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-96MT/DSS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MT/DS-TS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MT/DSS-TS, Mitsubishi Electric Corporation MELSEC iQ-F Series FX5UC-32MR/DS-TS, Mitsubishi Electric Corporation MELSEC iQ-R Series R00CPU, Mitsubishi Electric Corporation MELSEC iQ-R Series R01CPU, Mitsubishi Electric Corporation MELSEC iQ-R Series R02CPU, Mitsubishi Electric Corporation MELSEC iQ-R Series R04CPU, Mitsubishi Electric Corporation MELSEC iQ-R Series R08CPU, Mitsubishi Electric Corporation MELSEC iQ-R Series R16CPU, Mitsubishi Electric Corporation MELSEC iQ-R Series R32CPU, Mitsubishi Electric Corporation MELSEC iQ-R Series R120CPU, Mitsubishi Electric Corporation MELSEC iQ-R Series R04ENCPU, Mitsubishi Electric Corporation MELSEC iQ-R Series R08ENCPU, Mitsubishi Electric Corporation MELSEC iQ-R Series R16ENCPU, Mitsubishi Electric Corporation MELSEC iQ-R Series R32ENCPU, Mitsubishi Electric Corporation MELSEC iQ-R Series R120ENCPU, Mitsubishi Electric Corporation MELSEC iQ-R Series R08SFCPU, Mitsubishi Electric Corporation MELSEC iQ-R Series R16SFCPU, Mitsubishi Electric Corporation MELSEC iQ-R Series R32SFCPU, Mitsubishi Electric Corporation MELSEC iQ-R Series R120SFCPU, Mitsubishi Electric Corporation MELSEC iQ-R Series R08PCPU, Mitsubishi Electric Corporation MELSEC iQ-R Series R16PCPU, Mitsubishi Electric Corporation MELSEC iQ-R Series R32PCPU, Mitsubishi Electric Corporation MELSEC iQ-R Series R120PCPU.

Description

Category

CWE-120 – Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

References

Frequently Asked Questions