Vulnerability identifier: #VU53241

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-2021-27475

CWE-ID: CWE-502

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Connected Components Workbench
Other software / Other software solutions

Vendor: Rockwell Automation

Description

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

The vulnerability exists due to insecure input validation when processing serialized data. A remote attacker can trick a victim to open a specially crafted serialized object and execute arbitrary code on the target system.

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

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Connected Components Workbench: 12.00.00

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External links
http://ics-cert.us-cert.gov/advisories/icsa-21-133-01

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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.