8.6 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
0.001 Low
EPSS
Percentile
25.1%
Successful exploitation of this vulnerability could potentially lead to degradation in availability of the controller and/or a possible major nonrecoverable fault.
Rockwell Automation reports this vulnerability affects the following controllers:
An improper input validation vulnerability exists in affected versions of Rockwell Automation controllers that could allow a malformed CIP request to cause a major nonrecoverable fault and a denial-of-service condition.
CVE-2022-3157 has been assigned to this vulnerability. A CVSS v3 base score of 8.6 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H).
Rockwell Automation reported this vulnerability to CISA.
Rockwell Automation has released product updates addressing this vulnerability:
Rockwell Automation encourages users to apply mitigations on their security best practices web page to reduce risk.
Users should see the Rockwell Automation security advisory for more information.
CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage at cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
No known public exploits specifically target this vulnerability.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-3157
cisa.gov/ics
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cwe.mitre.org/data/definitions/20.html
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