Vulnerability identifier: #VU49342

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-27261

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
CX-One
Server applications / Frameworks for developing and running applications

Vendor: Omron

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing certain files. A remote unauthenticated attacker can trick the victim to open a specially crafted file, trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Omron has released an updated version of CX-One to address the reported vulnerabilities. These releases are available through the CX-One auto-update service and are as follows:

• CX-Protocol Version 2.03
• CX-Server Version 5.0.29
• CX-Position Version 2.53

Vulnerable software versions

CX-One: 4.40 - 4.60

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External links
http://ics-cert.us-cert.gov/advisories/icsa-21-007-02

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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.