Vulnerability identifier: #VU23584

Vulnerability risk: Medium

CVSSv3.1: 5.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-18259

CWE-ID: CWE-290

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Omron PLC CS series
Hardware solutions / Other hardware appliances
Omron PLC CJ series
Hardware solutions / Other hardware appliances

Vendor: Omron

Description

The vulnerability allows a remote attacker to perform a spoofing attack.

The vulnerability exists in the FINS communication protocol due to the FINS communication packet between a controller and a PLC may be monitored and it may invite replay attack using commands for the PLC. A remote attacker can perform an ID-theft or execute commands on the target system.

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

Vulnerable software versions

Omron PLC CS series: All versions

Omron PLC CJ series: All versions

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External links
http://www.omron-cxone.com/security/2019-12-06_PLC_EN.pdf

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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.