Vulnerability identifier: #VU23586

Vulnerability risk: High

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-18269

CWE-ID: CWE-940

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 gain access to unexpected functionality.

The vulnerability exists due to incomplete check on FINS header. A remote attacker can send a specially crafted request, gain privileges and access unexpected functionality.

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.