Vulnerability identifier: #VU70642

Vulnerability risk: High

CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-3157

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
CompactLogix 5370
Hardware solutions / Firmware
Compact GuardLogix 5370
Hardware solutions / Firmware
ControlLogix 5570
Hardware solutions / Firmware
ControlLogix 5570 redundancy
Hardware solutions / Firmware
GuardLogix 5570
Hardware solutions / Firmware

Vendor: Rockwell Automation

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can send a specially crafted CIP request and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

CompactLogix 5370: 20 - 33

Compact GuardLogix 5370: 28 - 33

ControlLogix 5570: 20 - 33

ControlLogix 5570 redundancy: 20 - 33

GuardLogix 5570: 20 - 33

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External links
http://rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1137757

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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.