4.6 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
6.8 Medium
CVSS3
Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.001 Low
EPSS
Percentile
38.4%
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This updated advisory is a follow-up to the original advisory titled ICSMA-18-137-01 Medtronic N’Vision Clinician Programmer that was published May 17, 2018, on the NCCIC/ICS-CERT website.
As part of the normal functionality of this device, the N’Vision Clinician Programmer may store Personal Health Information (PHI) or Personal Identifying Information (PII). Successful exploitation of these vulnerabilities may allow an attacker with physical access to an 8870 N’Vision Compact Flash card to access this PHI or PII.
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Additionally, an attacker with physical access to the 8870 Application Card may be able to modify the card to execute arbitrary code on the 8840 Clinician Programmer.
--------- End Update A Part 3 of 5 -----------
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The N’Vision Clinician Programmer is a small, portable device that offers a single programming platform for Medtronic Neurological implantable therapy devices, such as Medtronic neurostimulators and drug pumps. The following products are affected:
--------- End Update A Part 4 of 5 -----------
The affected product does not encrypt the following sensitive information while at rest:
CVE-2018-8849 has been assigned to this vulnerability. A CVSS v3 base score of 4.6 has been calculated; the CVSS vector string is (AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).
--------- Begin Update A Part 5 of 5 --------
The 8840 Clinician Programmer executes the application program from the 8870 Application Card. An attacker with physical access to an 8870 Application Card and sufficient technical capability can modify the contents of this card, including the binary executables. If modified to bypass protection mechanisms, this malicious code will be run when the card is inserted into an 8840 Clinician Programmer.
CVE-2018-10631 has been assigned to this vulnerability. A CVSS v3 base score of 6.3 has been assigned; the CVSS vector string is (AV:P/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H).
--------- End Update A Part 5 of 5 -----------
Billy Rios and Jonathan Butts of Whitescope LLC reported these vulnerabilities to NCCIC.
Medtronic has not developed a product update to address the vulnerabilities, but is reinforcing security reminders within this advisory to help reduce the risk associated with the vulnerabilities.
The 8870 Therapy Application card stores PHI and PII as part of its normal operating procedure and should be handled, managed and secured in a manner consistent with the applicable laws for patient data privacy.
Medtronic recommends users take additional defensive measures to minimize the risk of exploitation of these vulnerabilities. Specifically, hospitals and clinicians should:
Medtronic has released additional patient focused information, at the following location:
<https://www.medtronic.com/security>
NCCIC reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
NCCIC also provides a section for control systems security recommended practices on the ICS-CERT web page. Several recommended 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-CERT website in the Technical Information Paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to NCCIC for tracking and correlation against other incidents.
No known public exploits specifically target these vulnerabilities. These vulnerabilities are not exploitable remotely.
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-10631
web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-8849
cwe.mitre.org/data/definitions/311.html
cwe.mitre.org/data/definitions/693.html
public.govdelivery.com/accounts/USDHSCISA/subscriber/new?topic_id=USDHSCISA_138
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4.6 Medium
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:P/I:P/A:P
6.8 Medium
CVSS3
Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
0.001 Low
EPSS
Percentile
38.4%