Vulnerability identifier: #VU23583

Vulnerability risk: Medium

CVSSv3.1: 6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-18261

CWE-ID: CWE-307

Exploitation vector: Network

Exploit availability: No

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

Vendor: Omron

Description

The vulnerability allows a remote attacker to gain access to the system.

The vulnerability exists in the FTP function due to the affected software does not implement sufficient measures to prevent multiple failed authentication attempts within in a short time frame. A remote attacker can perform a brute-force authentication attack and gain access to the target system.

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

Vulnerable software versions

Omron PLC NJ series: All versions

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External links
http://ics-cert.us-cert.gov/advisories/icsa-19-346-03
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.