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AUSCERT External Security Bulletin Redistribution
ESB-2020.2063
ICS Medical Advisory (ICSMA-20-163-01) Philips IntelliBridge Enterprise IBE
15 June 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: Philips IntelliBridge Enterprise IBE
Publisher: ICS-CERT
Operating System: Windows
Impact/Access: Access Confidential Data -- Existing Account
Resolution: Mitigation
CVE Names: CVE-2020-12023
Original Bulletin:
https://www.us-cert.gov/ics/advisories/icsma-20-163-01
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ICS Medical Advisory (ICSMA-20-163-01)
Philips IntelliBridge Enterprise IBE
Original release date: June 11, 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 2.0
o Vendor: Philips
o Equipment: IntelliBridge Enterprise (IBE)
o Vulnerability: Insertion of Sensitive Information into Log File
2. RISK EVALUATION
Successful exploitation of this vulnerability could allow an attacker to access
credentials to the hospital's clinical information systems (EMR).
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
The following versions of IntelliBridge Enterprise (IBE), an interface, are
affected:
o IntelliBridge Enterprise (IBE) Versions B.12 and prior
The IntelliBridge Enterprise (IBE) provides HL7 interface interoperability
between Philips products and a hospital's clinical information system or
electronic medical records by providing a single integration point to the
enterprise. The IBE software and connection licenses serve as the main
messaging service that implements communications, mapping, message delivery,
data transformation, and routing of data to and from the Philips products to
external systems. IntelliBridge Enterprise has no clinical user interface, nor
does it interpret, inspect, or provide additional analytical functionality for
medical device data.
Workflows affected:
IntelliBridge Enterprise system integration with,
o SureSigns (VS4)
o EarlyVue (VS30)
o IntelliVue Guardian (IGS)
3.2 VULNERABILITY OVERVIEW
3.2.1 INSERTION OF SENSITIVE INFORMATION INTO LOG FILE CWE-532
Unencrypted user credentials received in the IntelliBridge Enterprise (IBE) are
logged within the transaction logs, which are secured behind the login based
administrative web portal.
The unencrypted user credentials sent from the affected products listed above,
for the purpose of handshake or authentication with the
Enterprise Systems, are logged as the payload in IntelliBridge Enterprise (IBE)
within the transaction logs. An attacker with administrative privileges could
exploit this vulnerability to read plain text credentials from log files.
CVE-2020-12023 has been assigned to this vulnerability. A CVSS v3 base score of
2.0 has been calculated; the CVSS vector string is ( AV:A/AC:H/PR:H/UI:N/S:U/
C:L/I:N/A:N ).
3.3 BACKGROUND
o CRITICAL INFRASTRUCTURE SECTORS: Healthcare and Public Health
o COUNTRIES/AREAS DEPLOYED: Worldwide
o COMPANY HEADQUARTERS LOCATION: Netherlands
3.4 RESEARCHER
Customer Indiana University Health reported this vulnerability to Philips.
4. MITIGATIONS
Philips plans a new release (IBE B.13) by the end of Q4 2020 that remediates
the security risk by not logging the plain text user credentials in the log
file.
As an interim mitigation to this vulnerability, Philips recommends the
following:
o The IBE transaction logs are only accessible with administrative
privileges. An additional account can be created on the IBE system with
limited privileges, for service engineers.
o Reduce log retention to an acceptable timeframe that allows for recovery
activities.
Users with questions regarding their specific Philips IntelliBridge Enterprise
installation should contact their local Philips service support team, or
regional service support.
Users can see the Philipsadvisory for more details, and contact the Philips
Customer Service Solutions team for additional guidance. Please see the Philips
product security website for the latest security information for Philips
products.
CISA recommends users take defensive measures to minimize the risk of
exploitation of this vulnerability. Specifically, users should:
o Restrict system access to authorized personnel only and follow a least
privilege approach.
o Apply defense-in-depth strategies.
o Disable unnecessary accounts and services.
o Where additional information is needed, refer to existing cybersecurity in
medical device guidance issued by the FDA .
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.
No known public exploits specifically target this vulnerability. This
vulnerability is not exploitable remotely. High skill level is needed to
exploit.
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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