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             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.2400
    Advisory (icsma-20-196-01) Capsule Technologies SmartLinx Neuron 2
                               15 July 2020

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Capsule Technologies SmartLinx Neuron 2
Publisher:         ICS-CERT
Operating System:  Network Appliance
Impact/Access:     Unauthorised Access -- Console/Physical
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-5024  

Original Bulletin: 
   https://us-cert.cisa.gov/ics/advisories/icsma-20-196-01

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ICS Medical Advisory (ICSMA-20-196-01)

Capsule Technologies SmartLinx Neuron 2

Original release date: July 14, 2020

Legal Notice

All information products included in https://us-cert.gov/ics 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 https://www.us-cert.gov/tlp/ .



1. EXECUTIVE SUMMARY

  o CVSS v3 7.6
  o ATTENTION: Low skill level to exploit/public exploits are available
  o Vendor: Capsule Technologies
  o Equipment: SmartLinx Neuron 2
  o Vulnerability: Protection Mechanism Failure

2. RISK EVALUATION

Successful exploitation of this vulnerability could provide an attacker with
full control of a trusted device on a hospital's internal network.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of Capsule Technologies SmartLinx Neuron 2, a medical
device platform, are affected:

  o Capsule Technologies SmartLinx Neuron 2: All versions prior to 9.0

3.2 VULNERABILITY OVERVIEW

3.2.1 PROTECTION MECHANISM FAILURE CWE-693

A restricted environment escape vulnerability exists in the "kiosk mode"
function of Capsule Technologies SmartLinx Neuron 2 medical information
collection devices running

Version 6.9.1. A specific series of keyboard inputs can allow an escape from
the restricted environment, resulting in full administrator access to the
underlying operating system. An attacker can connect to the device via USB port
with a keyboard or other HID device to trigger this vulnerability.

CVE-2019-5024 has been assigned to this vulnerability. A CVSS v3 base score of
7.6 has been calculated; the CVSS vector string is ( AV:P/AC:L/PR:N/UI:N/S:C/
C:H/I:H/A:H ).

3.3 BACKGROUND

  o CRITICAL INFRASTRUCTURE SECTORS: Healthcare and Public Health
  o COUNTRIES/AREAS DEPLOYED: Worldwide
  o COMPANY HEADQUARTERS LOCATION: United States

3.4 RESEARCHER

Patrick DeSantis of Cisco Talos reported this vulnerability to Capsule
Technologies.

4. MITIGATIONS

  o Capsule Technologies recommends the following mitigations:
       Update the software to a supported version, v9.0 and above, by doing
        the following:
       Connect the Neuron 2 to the Capsule SmartLinx application server.
       Edit the Neuron Software Reference to include the Neuron software the
        user wants to update.
       Transfer the Neuron Software to the given Neuron.
       Select Install Neuron Software Reference on the given Neuron.
  o The Neuron will drop offline for approximately 30 minutes for the install
    to complete.
  o Restrict physical access to the vulnerable devices and ensure they remain
    outside of the organization's security perimeter.
  o Ensure data communications from the devices are not implicitly trusted by
    internal systems.
  o If possible, physically disable or obstruct access to USB ports on
    vulnerable devices.
  o Monitor logs for signs of connections of unauthorized peripherals to
    vulnerable devices.

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 on us-cert.gov . 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 webpage on us-cert.gov 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 CISA for tracking
and correlation against other incidents.

This vulnerability is not exploitable remotely.

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

Email: CISAservicedesk@cisa.dhs.gov
Toll Free: 1-888-282-0870

CISA continuously strives to improve its products and services. You can help by
choosing one of the links below to provide feedback about this product.

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