Vulnerability identifier: #VU83865

Vulnerability risk: High

CVSSv3.1: 8.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2023-5247

CWE-ID: CWE-73

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
GX Works3
Client/Desktop applications / Software for system administration
MELSOFT iQ AppPortal
Client/Desktop applications / Software for system administration
MELSOFT Navigator
Client/Desktop applications / Software for system administration
Motion Control Setting
Client/Desktop applications / Software for system administration

Vendor: Mitsubishi Electric

Description

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

The vulnerability exists due to external control of file name or path. A remote attacker can trick a victim to open a specially crafted project file and execute arbitrary code on the target system.

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

Vulnerable software versions

GX Works3: All versions

MELSOFT iQ AppPortal: All versions

MELSOFT Navigator: All versions

Motion Control Setting: All versions

---

External links
http://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2023-016_en.pdf
http://jvn.jp/vu/JVNVU93383160/
http://www.cisa.gov/news-events/ics-advisories/icsa-23-334-04

---

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.