#VU64802 Insufficient verification of data authenticity in Omron products - CVE-2022-31207

Vulnerability identifier: #VU64802

Vulnerability risk: Low

CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-31207

CWE-ID: CWE-345

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SYSMAC CS1
Hardware solutions / Routers & switches, VoIP, GSM, etc
SYSMAC CJ2M
Hardware solutions / Routers & switches, VoIP, GSM, etc
SYSMAC CJ2H
Hardware solutions / Routers & switches, VoIP, GSM, etc
SYSMAC CP1E
Hardware solutions / Routers & switches, VoIP, GSM, etc
SYSMAC CP1H
Hardware solutions / Routers & switches, VoIP, GSM, etc
SYSMAC CP1L
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Omron

Description

The vulnerability allows a remote user to compromsie the target system.

The vulnerability exists due to the logic that is downloaded to the PLC is not cryptographically authenticated. A remote administrator can execute arbitrary object code commands on the defined software logic.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SYSMAC CS1: before 4.1

SYSMAC CJ2M: before 2.1

SYSMAC CJ2H: before 1.5

SYSMAC CP1E: before 1.30

SYSMAC CP1H: before 1.30

SYSMAC CP1L: before 1.10

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External links
https://ics-cert.us-cert.gov/advisories/icsa-22-179-02

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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.