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AUSCERT External Security Bulletin Redistribution
ESB-2016.2854
Smiths-Medical CADD-Solis Medication Safety Software Vulnerabilities
5 December 2016
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AusCERT Security Bulletin Summary
---------------------------------
Product: Smiths-Medical CADD-Solis Medication Safety Software
Publisher: ICS-CERT
Operating System: Windows
Impact/Access: Increased Privileges -- Existing Account
Provide Misleading Information -- Remote with User Interaction
Access Privileged Data -- Remote with User Interaction
Resolution: Mitigation
CVE Names: CVE-2016-8358 CVE-2016-8355
Original Bulletin:
https://ics-cert.us-cert.gov/advisories/ICSMA-16-306-01
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Advisory (ICSMA-16-306-01)
Smiths-Medical CADD-Solis Medication Safety Software Vulnerabilities
Original release date: December 01, 2016
Legal Notice
All information products included in http://ics-cert.us-cert.gov 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 http://www.us-cert.gov/tlp/.
OVERVIEW
This advisory was originally posted to the US-CERT secure Portal library on
November 1, 2016, and is being released to the NCCIC/ICS-CERT web site.
Smiths-Medical has reported two vulnerabilities in Smiths-Medical's CADD-Solis
Medication Safety Software that were identified by Andrew Gothard of Newcastle
Upon Tyne Hospitals NHS Foundations Trust. Smiths-Medical has produced new
versions to mitigate these vulnerabilities. Smiths-Medical reports that an
independent security expert has tested the new versions to validate that they
resolve the identified vulnerabilities.
These vulnerabilities could be exploited remotely.
AFFECTED PRODUCTS
The following CADD-Solis Medication Safety Software versions are affected:
Smiths-Medical CADD-Solis Medication Safety Software, Version 1.0;
Smiths-Medical CADD-Solis Medication Safety Software, Version 2.0;
Smiths-Medical CADD-Solis Medication Safety Software, Version 3.0; and
Smiths-Medical CADD-Solis Medication Safety Software, Version 3.1
IMPACT
Successful exploitation of these vulnerabilities may allow an authenticated
user to add users, delete users, and to modify permissions via the CADD-Solis
Medication Safety Software. Drug libraries can also be modified in the
CADD-Solis Medication Safety Software. However, to update the drug libraries on
a pump, a laptop with the CADD-Solis Medication Safety Software would have to
be physically plugged into one of two different types of pumps, the CADD-Prizm
System and the CADD-Solis Ambulatory Infusion Pump.
Impact to individual organizations depends on many factors that are unique to
each organization. ICS-CERT recommends that organizations evaluate the impact
of these vulnerabilities based on their operational environment and specific
clinical usage.
BACKGROUND
Smiths-Medical is headquartered in Plymouth, Minnesota, and is a subsidiary
of Smiths Group plc, which is a UK-based company.
The affected product, the CADD-Solis Medication Safety Software, is an
application that is used to set dosage limits for infusion pumps. According
to Smiths-Medical, the CADD-Solis Medication Safety Software can interface
with the CADD-Prizm System and the CADD-Solis Ambulatory Infusion Pump,
which are deployed across the Healthcare and Public Health sector.
Smiths-Medical estimates that this product is sold worldwide.
VULNERABILITY CHARACTERIZATION
VULNERABILITY OVERVIEW
INCORRECT PERMISSION ASSIGNMENT FOR CRITICAL RESOURCE[a]
CADD-Solis Medication Safety Software grants an authenticated user elevated
privileges on the SQL database, which would allow an authenticated user to
modify drug libraries, add and delete users, and change user permissions.
According to Smiths-Medical, physical access to the pump is required to install
drug library updates.
CVE-2016-8355[b] has been assigned to this vulnerability. A CVSS v3 base score
of 9.9 has been assigned; the CVSS vector string is
(AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H).[c]
MAN-IN-THE-MIDDLE[d]
The affected software does not verify the identities at communication endpoints,
which may allow a remote attacker to gain access to the communication channel
between endpoints.
CVE-2016-8358[e] has been assigned to this vulnerability. A CVSS v3 base score
of 8.5 has been assigned; the CVSS vector string is
(AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H).[f]
VULNERABILITY DETAILS
EXPLOITABILITY
These vulnerabilities could be exploited remotely.
EXISTENCE OF EXPLOIT
No known public exploits specifically target these vulnerabilities.
DIFFICULTY
An attacker with low skill would be able to exploit these vulnerabilities.
MITIGATION
Smiths-Medical has released new versions of the CADD-Solis Medication Safety
Software, which mitigates the identified vulnerabilities. The new versions of
Smiths-Medical's CADD-Solis Medication Safety Software are Version 3.2, which
is distributed within the continental US, and Version 4.1, which is released
outside the continental US.
Smiths-Medical recommends that CADD-Solis Medication Safety Software users
install the applicable new version. In addition, Smiths-Medical also recommends
that users take the following additional security measures:
Apply strict password standards across systems to include, requiring the use of
upper case, lower case, special characters, and a minimum password length of 8
characters.
Establish and effectively manage an Active directory.
Create an SQL Express database account with managed permissions for use with
the CADD-Solis Medication Safety Software.
Establish and assign managed Services Accounts for all servers and medical
infusion pumps.
Use Virtual Local Area Network (VLAN) tagging.
Implement server hardening procedures for both SQL and Windows servers.
For additional information about the identified vulnerabilities or to obtain the
new version of the CADD-Solis Medication Safety Software, contact Smiths-Medical
Technical Support at:
Telephone: +1 (800) 258 5361 or +01 614 210 7300;
Email: info.asd@smiths-medical.com (link sends e-mail).
ICS-CERT recommends that users take defensive measures to minimize the risk of
exploitation of these vulnerabilities. Specifically, users should:
Minimize network exposure for all medical devices and/or systems, and ensure
that they are not accessible from the Internet.
Locate all medical devices and remote devices behind firewalls, and isolate
them from the business network.
When remote access is required, use secure methods, such as Virtual Private
Networks (VPNs), recognizing that VPNs may have vulnerabilities and should be
updated to the most current version available. Also recognize that VPN is only
as secure as the connected devices.
ICS-CERT also provides a section for security recommended practices on the
ICS-CERT web page at http://ics-cert.us-cert.gov/content/recommended-practices.
ICS-CERT reminds organizations to perform proper impact analysis and risk
assessment prior to deploying defensive measures.
Additional mitigation guidance and recommended practices are publicly available
in the ICS-CERT Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber
Intrusion Detection and Mitigation Strategies, that is available for download
from the ICS-CERT web site (http://ics-cert.us-cert.gov/).
Organizations observing any suspected malicious activity should follow their
established internal procedures and report their findings to ICS-CERT for
tracking and correlation against other incidents.
a.
CWE-732: Incorrect Permission Assignment for Critical Resource,
https://cwe.mitre.org/data/definitions/732.html, web site last accessed
December 01, 2016.
b.
NVD, https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-8355, NIST
uses this advisory to create the CVE web site report. This web site will be
active sometime after publication of this advisory.
c.
CVSS Calculator,
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S...,
web site last accessed December 01, 2016.
d.
CWE-300: Channel Accessible by Non-Endpoint ("Man-in-the-Middle"),
https://cwe.mitre.org/data/definitions/300.html, web site last accessed
December 01, 2016.
e.
NVD, https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-8358, NIST uses
this advisory to create the CVE web site report. This web site will be active
sometime after publication of this advisory.
f.
CVSS Calculator,
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S...,
web site last accessed December 01, 2016.
Contact Information
For any questions related to this report, please contact ICS-CERT at:
Email: ics-cert@hq.dhs.gov (link sends e-mail)
Toll Free: 1-877-776-7585
International Callers: (208) 526-0900
For industrial control systems security information and incident reporting:
http://ics-cert.us-cert.gov
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