ESB-2018.1531 - [Appliance] N'Vision Clinician Programmer: Access confidential data - Console/physical 2018-05-18

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             AUSCERT External Security Bulletin Redistribution

        PII not encrypted at rest in N'Vision Clinician Programmer
                                18 May 2018


        AusCERT Security Bulletin Summary

Product:           N'Vision Clinician Programmer
Publisher:         ICS-CERT
Operating System:  Network Appliance
Impact/Access:     Access Confidential Data -- Console/Physical
Resolution:        Mitigation

Original Bulletin:

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Advisory (ICSMA-18-137-01)

Medtronic N'Vision Clinician Programmer

Original release date: May 17, 2018

Legal Notice

All information products included in are
provided "as is" for informational purposes only. The Department of Homeland
Security (DHS) does not provide any warranties of any kind regarding any
information contained within. DHS does not endorse any commercial product or
service, referenced in this product or otherwise. Further dissemination of this
product is governed by the Traffic Light Protocol (TLP) marking in the header.
For more information about TLP, see

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  * CVSS v3 4.6
  * ATTENTION: Low skill level to exploit
  * Vendor: Medtronic
  * Equipment: N'Vision Clinician Programmer
  * Vulnerability: Missing Encryption of Sensitive Data


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 this vulnerability may allow an
attacker with physical access to an 8870 N'Vision Compact Flash card to access
this PHI or PII.



The N'Vision Clinician Programmer is a small, portable device that offers a
single programming platform for Medtronic Neurological implantable therapy
devices. The following products are affected:

  * 8840 N'Vision Clinician Programmer, all versions, and
  * 8870 N'Vision removable Application Card, all versions.



The affected product does not encrypt the following sensitive information while
at rest:

  * PII ? Personally Identifiable Information. Some combination of personal
    data that enables the unique identification of an individual. PII is
    defined as ?information that can be used to distinguish or trace an
    individual?s identity, either alone or when combined with other personal or
    identifying information that is linked or linkable to a specific
  * PHI ? Protected Health Information. Some combination of PII and associated
    health related data.

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


  * Critical Infrastructure Sectors: Healthcare and Public Health
  * Countries/Areas Deployed: Worldwide
  * Company Headquarters Location: Dublin, Ireland


Billy Rios of Whitescope LLC reported this vulnerability to NCCIC.


Medtronic has not developed a product update to address the vulnerability, but
is reinforcing security reminders within this advisory to help reduce the risk
associated with the vulnerability

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 this vulnerability. Specifically, hospitals and
clinicians should:

  * Maintain strict physical control of the 8870 application card.
  * Use only legitimately obtained 8870 cards and not cards provided by any
    third party as firmware and system updates are provided directly by
    Medtronic using new 8870 application cards.
  * 8840 Programmers and 8870 Therapy Application compact flash cards are the
    property of Medtronic and should be returned to Medtronic when no longer in
    use. If that is not an option, you should securely dispose of them.

Medtronic has released additional patient focused information, at the following

NCCIC recommends users take defensive measures to minimize the risk of
exploitation of this vulnerability. Specifically, users should:

  * Minimize network exposure for all control system devices and/or systems,
    and ensure that they are not accessible from the Internet.
  * Locate control system networks and remote devices behind firewalls, and
    isolate them from the business network.

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

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 this vulnerability. This
vulnerability is not exploitable remotely.

Contact Information

For any questions related to this report, please contact the NCCIC at:

Toll Free: 1-888-282-0870

For industrial control systems cybersecurity information:  http:// 
or incident reporting:

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