Vulnerability identifier: #VU16239

Vulnerability risk: High

CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-18989

CWE-ID: CWE-416

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
CX-Server
Web applications / Other software
CX-Programmer
Server applications / Application servers

Vendor: Omron

Description

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

The vulnerability exists due to use-after-free error when handling malicious input. A remote unauthenticated attacker can trick the victim into processing a specially crafted project file, trigger memory corruption and execute arbitrary code with elevated privileges.

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

Mitigation
Update CX-Programmer to version 9.70.
Update CX-Server to version 5.0.24.

Vulnerable software versions

CX-Server: 5.0.22 - 5.0.23

CX-Programmer: 9.65 - 9.66

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External links
http://ics-cert.us-cert.gov/advisories/ICSA-18-338-01

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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.