CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
41.2%
Successful exploitation of this vulnerability could result in remote code execution or a denial-of-service condition impacting a healthcare delivery organizationâs Paceart Optima system.
The following Medtronic products are affected:
3.2.1 DESERIALIZATION OF UNTRUSTED DATA CWE-502
If a healthcare delivery organization has enabled the optional Paceart Messaging Service in the Paceart Optima system, an unauthorized user could exploit this vulnerability to perform remote code execution and/or denial-of-service (DoS) attacks by sending specially crafted messages to the Paceart Optima system. Remote code execution could result in the deletion, theft, or modification of Paceart Optima systemâs cardiac device data, or use of the Paceart Optima system for further network penetration. A DoS attack could cause the Paceart Optima system to slow or be unresponsive.
CVE-2023-31222 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Medtronic reported this vulnerability to CISA.
Medtronic recommends updating the Paceart Optima system to v1.12. Contact Medtronic to schedule the update.
Medtronic has provided some immediate mitigations that users can apply to mitigate the risk. If running a combined Application and Integration Server, contact Medtronic Paceart Optima System technical support for immediate mitigation actions. For all other configurations, Medtronic recommends the following steps:
As long as the Paceart Messaging Service remains disabled, the vulnerability will remain mitigated.
Please refer to Medtronicâs security bulletin 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-12-146-01BâTargeted 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-2023-31222
cisa.gov/ics
cisa.gov/ics
cisasurvey.gov1.qualtrics.com/jfe/form/SV_9n4TtB8uttUPaM6?product=https://www.cisa.gov/news-events/ics-medical-advisories/icsma-23-180-01
cwe.mitre.org/data/definitions/502.html
global.medtronic.com/xg-en/product-security/security-bulletins/paceart-optima-system.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
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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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www.dhs.gov/foia
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