Vulnerability · Published Nov 6, 2023 · Assigned by Mitsubishi
CVE-2023-4699Arbitrary Command Execution Vulnerability in Mitsubishi Electric proprietary protocol communication of multiple FA products
Critical 10.0
In plain English
A critical-severity missing authentication in MELSEC-F Series FX3U-128MR/DS from Mitsubishi Electric Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 67% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Official description
Missing Authentication for Critical Function vulnerability in Mitsubishi Electric Corporation MELSEC-F Series CPU modules, MELSEC iQ-F Series, MELSEC iQ-R series CPU modules, MELSEC iQ-R series, MELSEC iQ-L series, MELSEC Q series, MELSEC-L series, Mitsubishi Electric CNC M800V/M80V series, Mitsubishi Electric CNC M800/M80/E80 series and Mitsubishi Electric CNC M700V/M70V/E70 series allows a remote unauthenticated attacker to execute arbitrary commands by sending specific packets to the affected products. This could lead to disclose or tamper with information by reading or writing control programs, or cause a denial-of-service (DoS) condition on the products by resetting the memory contents of the products to factory settings or resetting the products remotely.
Affected products (as reported)
Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
References
- https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-013_en.pdf vendor-advisory
- https://jvn.jp/vu/JVNVU94620134/ government-resource
- https://www.cisa.gov/news-events/ics-advisories/icsa-23-306-03 government-resource