Remote code execution in Omron CX-One CX-Protocol

1) Type confusion

EUVDB-ID: #VU16939

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-2018-19027

CWE-ID: CWE-843 - Type confusion

Exploit availability: No

Description

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

The vulnerability exists due to type confusion when processing project files. A remote unauthenticated attacker can trick the victim into processing a specially crafted project file, trigger type confusion error and execute code under the privileges of the application.

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

Mitigation

Update to version 2.01.

Vulnerable software versions

CX-Protocol: before 2.01

External links

http://ics-cert.us-cert.gov/advisories/ICSA-19-010-02

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.