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AUSCERT External Security Bulletin Redistribution
ESB-2017.1325
Advisory (ICSMA-17-082-02) B. Braun Medical SpaceCom Open
Redirect Vulnerability
24 May 2017
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AusCERT Security Bulletin Summary
---------------------------------
Product: B. Braun Medical SpaceCom
Publisher: ICS-CERT
Operating System: Network Appliance
Impact/Access: Provide Misleading Information -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2017-6018
Original Bulletin:
https://ics-cert.us-cert.gov/advisories/ICSMA-17-082-02
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Advisory (ICSMA-17-082-02)
B. Braun Medical SpaceCom Open Redirect Vulnerability
Original release date: May 23, 2017
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
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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 NCCIC Portal on March 23, 2017, and
is being released to the ICS-CERT web site.
Marc Ruef and Rocco Gagliardi of scip AG have identified an open redirect
vulnerability in B. Braun Medicals SpaceCom module, which is integrated into
the SpaceStation docking station. B. Braun has produced a software update for
the SpaceCom module to mitigate this vulnerability.
This vulnerability could be exploited remotely.
AFFECTED PRODUCTS
The following versions of the SpaceCom module, used with the SpaceStation
docking station, are affected:
SpaceStation with SpaceCom module (integrated as part number 8713142U),
software versions prior to Version 012U000040, and
SpaceStation (part number 8713140U) with installed SpaceCom module (part
number 8713160U), software versions prior to Version 012U000040.
IMPACT
Successful exploitation of this vulnerability may allow URL redirection to
untrusted web sites.
BACKGROUND
B. Braun Medical Inc. is a US-based company and is part of a global B. Braun
group of companies.
The affected product, SpaceCom module, is a data communication interface that
is used with a SpaceStation docking station for multiple intravenous infusion
pumps. According to B. Braun Medical, SpaceCom modules are deployed across the
Healthcare and Public Health Sector. B. Braun Medical estimates that this
product is only used in the United States.
VULNERABILITY CHARACTERIZATION
VULNERABILITY OVERVIEW
URL REDIRECTION TO UNTRUSTED SITE ('OPEN REDIRECT')[a]
The web server of the affected product accepts untrusted input which could
allow attackers to redirect the request to an unintended URL contained within
untrusted input.
CVE-2017-6018 [b] has been assigned to this vulnerability. A CVSS v3 base score
of 5.4 has been assigned; the CVSS vector string is
(AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N).[c]
VULNERABILITY DETAILS
EXPLOITABILITY
This vulnerability could be exploited remotely.
EXISTENCE OF EXPLOIT
No known public exploits specifically target this vulnerability.
DIFFICULTY
An attacker with a low skill level would be able to exploit this
vulnerability.
MITIGATION
B. Braun Medical has released a software update, Version 012U000040, for the
SpaceCom module, which is a data communication interface used with the
SpaceStation docking station. B. Braun Medicals software update, Version
012U000040, along with instructions for downloading and installing the
software update, are available on the B. Braun Medical portal at the following
location (with valid account):
https://ftp.bbmus.com (link is external)
B. Braun Medical has directly notified affected customers using the SpaceCom
module to inform them of the software update.
For B. Braun Medical portal account assistance, contact B. Braun Technical
Support at:
1-800-627-7867
or
AISTechSupport.us@bbraun.com (link sends e-mail).
ICS-CERT in collaboration with B. Braun Medical recommends that users take
defensive measures to minimize the risk of exploitation of this vulnerability.
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 ICSCERT 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-601: URL Redirection to Untrusted Site ('Open Redirect'),
http://cwe.mitre.org/data/definitions/601.html, web site last accessed March
23, 2017.
[b]. NVD,
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-6018, 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:N/UI:R/S...,
web site last accessed March 23, 2017.
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