#VU66913 Input validation error in RTU500 CMU - CVE-2022-28613

Vulnerability identifier: #VU66913

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-28613

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
RTU500 CMU
Hardware solutions / Firmware

Vendor: ABB

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in the HCI Modbus TCP function. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

RTU500 CMU: 12.0.1 - 13.2.4

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External links
https://search.abb.com/library/Download.aspx?DocumentID=8DBD000103&LanguageCode=en&DocumentPartId=&Action=Launch
https://www.cisa.gov/uscert/ics/advisories/icsa-22-242-04

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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.