Missing Authentication for Critical Function in Mitsubishi Electric products - CVE-2023-6942

Vulnerability identifier: #VU85933

CSH Severity: Medium

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2023-6942

CWE-ID: CWE-306

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vendor: Mitsubishi Electric

Affected software:
EZSocket
FR Configurator2
GT Designer3 Version1(GOT1000)
GT Designer3 Version1(GOT2000)
MX OPC Server DA
GX Works2
GX Works3
MELSOFT Navigator
MT Works2
MX Component
MX OPC Server UA

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to missing authentication for critical function. A remote attacker can send specially crafted packets and bypass authentication.

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

• https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-020_en.pdf
• https://jvn.jp/vu/JVNVU95103362
• https://www.cisa.gov/news-events/ics-advisories/icsa-24-030-02