#VU80906 Improper control of interaction frequency in Omron products - CVE-2022-45790

Vulnerability identifier: #VU80906

Vulnerability risk: Medium

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

CVE-ID: CVE-2022-45790

CWE-ID: CWE-799

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Smart Security Manager
Client/Desktop applications / Other client software
SYSMAC CJ2H
Hardware solutions / Routers & switches, VoIP, GSM, etc
SYSMAC CJ2M
Hardware solutions / Routers & switches, VoIP, GSM, etc
CS1H/G-CPU
Hardware solutions / Routers & switches, VoIP, GSM, etc
CJ1G-CPU
Hardware solutions / Routers & switches, VoIP, GSM, etc
CS1D-CPU
Hardware solutions / Routers & switches, VoIP, GSM, etc
CP1E-E
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Omron

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to improper control of interaction frequency within the FINS protocol. A remote attacker can perform a brute-force attack and gain access to sensitive information.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Smart Security Manager: 1.4 - 1.5

SYSMAC CJ2H: 1.4

SYSMAC CJ2M: 2.0

CS1H/G-CPU: 4.0

CJ1G-CPU: 4.0

CS1D-CPU: 1.3 - 2.0

CP1E-E: 1.2

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External links
https://www.cisa.gov/news-events/ics-advisories/icsa-23-262-05

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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.