7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.0004 Low
EPSS
Percentile
13.5%
Successful exploitation of this vulnerability could result in a denial-of-service attack.
The following version of Rockwell Automation Kinetix 5700 DC Bus Power Supply is affected:
3.2.1 UNCONTROLLED RESOURCE CONSUMPTION CWE-400
The Kinetix 5700 DC Bus Power Supply Series A is vulnerable to CIP fuzzing. The new ENIP connections cannot be established if impacted by this vulnerability, which prohibits operational capabilities of the device resulting in a denial-of-service attack.
CVE-2023-2263 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
Rockwell Automation reported this vulnerability to CISA.
Rockwell Automation has released the following mitigations and workarounds. Customers using the affected software are encouraged to apply the risk mitigations below, if possible.
For more information, see Rockwell Automationβs Security Advisory.
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-12-146-01BβTargeted 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-2023-2263
cisa.gov/ics
cisa.gov/ics
compatibility.rockwellautomation.com/Pages/MultiProductCompareSelections.aspx?crumb=113&versions=61565
cwe.mitre.org/data/definitions/400.html
manuals.plus/m/034dd41130c94a4265d75b89b1ae8c6cca6223ea538a03c3dd7660487fb74a8a
pdf4pro.com/view/configure-system-security-features-user-manual-5f8cd0.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
rockwellautomation.custhelp.com/app/answers/answer_view/a_id/1085012/loc/en_US#__highlight
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us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf
www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01
www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B
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