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AUSCERT External Security Bulletin Redistribution
Advisory (icsma-20-196-01) Capsule Technologies SmartLinx Neuron 2
15 July 2020
AusCERT Security Bulletin Summary
Product: Capsule Technologies SmartLinx Neuron 2
Operating System: Network Appliance
Impact/Access: Unauthorised Access -- Console/Physical
CVE Names: CVE-2019-5024
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ICS Medical Advisory (ICSMA-20-196-01)
Capsule Technologies SmartLinx Neuron 2
Original release date: July 14, 2020
All information products included in https://us-cert.gov/ics are provided"as
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does not provide any warranties of any kind regarding any information contained
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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/
o CRITICAL INFRASTRUCTURE SECTORS: Healthcare and Public Health
o COUNTRIES/AREAS DEPLOYED: Worldwide
o COMPANY HEADQUARTERS LOCATION: United States
Patrick DeSantis of Cisco Talos reported this vulnerability to Capsule
o Capsule Technologies recommends the following mitigations:
Update the software to a supported version, v9.0 and above, by doing
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
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
o If possible, physically disable or obstruct access to USB ports on
o Monitor logs for signs of connections of unauthorized peripherals to
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
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:
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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