SB2024013127 - Multiple vulnerabilities in Mitsubishi Electric FA Engineering Software Products

Description

This security bulletin contains information about 2 vulnerabilities.

1) Missing Authentication for Critical Function (CVE-ID: CVE-2023-6942)

CWE-ID: CWE-306 - Missing Authentication for Critical Function

CVSSv4: 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

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.

2) Unsafe reflection (CVE-ID: CVE-2023-6943)

CWE-ID: CWE-470 - Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to unsafe reflection. A remote attacker can call a function with a path to a malicious library while connected to the affected products and execute arbitrary code on the system.

Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References

• 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