Multiple vulnerabilities in Mitsubishi Electric FA Engineering Software Products

Published: 2024-01-31

Risk	High
Patch available	NO
Number of vulnerabilities	2
CVE-ID	CVE-2023-6942 CVE-2023-6943
CWE-ID	CWE-306 CWE-470
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	EZSocket Other software / Other software solutions FR Configurator2 Other software / Other software solutions GT Designer3 Version1(GOT1000) Other software / Other software solutions GT Designer3 Version1(GOT2000) Other software / Other software solutions MX OPC Server DA Other software / Other software solutions GX Works2 Client/Desktop applications / Software for system administration GX Works3 Client/Desktop applications / Software for system administration MELSOFT Navigator Client/Desktop applications / Software for system administration MT Works2 Client/Desktop applications / Software for system administration MX Component Universal components / Libraries / Libraries used by multiple products MX OPC Server UA Server applications / SCADA systems
Vendor	Mitsubishi Electric

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Missing Authentication for Critical Function

EUVDB-ID: #VU85933

Risk: Medium

CVSSv3.1: 6.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2023-6942

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

Exploit availability: No

Description

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.

Mitigation

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

Vulnerable software versions

EZSocket: 3.0

FR Configurator2: All versions

GT Designer3 Version1(GOT1000): All versions

GT Designer3 Version1(GOT2000): All versions

GX Works2: 1.11M

GX Works3: All versions

MELSOFT Navigator: 1.04E

MT Works2: All versions

MX Component: 4.00A

MX OPC Server DA: All versions

MX OPC Server UA: All versions

External links

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

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Unsafe reflection

EUVDB-ID: #VU85936

Risk: High

CVSSv3.1: 9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2023-6943

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