#VU89012 Arbitrary file upload in RTU500 CMU - CVE-2024-1531

Vulnerability identifier: #VU89012

Vulnerability risk: Low

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-1531

CWE-ID: CWE-434

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
RTU500 CMU
Hardware solutions / Firmware

Vendor: ABB

Description

The vulnerability allows a remote user to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file in the stb-language file handling. A remote administrator can upload a malicious file and execute it on the server.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

RTU500 CMU: 12.0.1 - 13.5.3

---

External links
https://publisher.hitachienergy.com/preview?DocumentId=8DBD000190&languageCode=en&Preview=true
https://www.cisa.gov/news-events/ics-advisories/icsa-24-116-01

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

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