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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.3304
          Advisory (icsma-19-241-02) Philips HDI 4000 Ultrasound
                              30 August 2019

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

Product:           Philips HDI 4000 Ultrasound Systems
Publisher:         US-CERT
Operating System:  Network Appliance
                   Windows
Impact/Access:     Access Confidential Data -- Existing Account
                   Modify Arbitrary Files   -- Existing Account
Resolution:        Alternate Program
CVE Names:         CVE-2019-10988  

Original Bulletin: 
   https://www.us-cert.gov/ics/advisories/icsma-19-241-02

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than US-CERT. It is recommended that administrators
         running Philips HDI 4000 Ultrasound Systems check for an updated 
         version of the software for their operating system.

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ICS Medical Advisory (ICSMA-19-241-02)

Philips HDI 4000 Ultrasound

Original release date: August 29, 2019

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
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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/ .



1. EXECUTIVE SUMMARY

  o CVSS v3 3.0
  o ATTENTION: Public exploits are available/exploitable from within the same
    local subnet
  o Vendor: Philips
  o Equipment: HDI 4000 Ultrasound Systems
  o Vulnerability: Use of Obsolete Function

2. RISK EVALUATION

Successful exploitation of this vulnerability could lead to exposure of
ultrasound images (breaches of confidentiality) and compromised image
integrity. The vulnerability does not affect patient safety or systems
operations (availability).

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of Philips HDI 4000 Ultrasound Systems, a diagnostic
ultrasound system, are affected:

  o All versions running on old, unsupported operating systems such as Windows
    2000.

3.2 VULNERABILITY OVERVIEW

3.2.1 USE OF OBSOLETE FUNCTION CWE-477

The HDI 4000 Ultrasound System is built on an old operating system that is no
longer supported. Thus, any unmitigated vulnerability in the old operating
system could be exploited to affect this product.

CVE-2019-10988 has been assigned to this vulnerability. A CVSS v3 base score of
3.0 has been calculated; the CVSS vector string is ( AV:L/AC:H/PR:H/UI:N/S:U/
C:L/I:L/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

Check Point reported this vulnerability to Philips.

4. MITIGATIONS

Users should implement controls to limit access to the network and consider
replacing the system with a newer technology and supported operating system.

Please see the Philips product security website for the latest security
information for Philips products:

https://www.philips.com/productsecurity

The support life cycle for the Philips HDI 4000 Ultrasound system ended on
December 31, 2013. As such, these devices are no longer sold, updated, or
supported by Philips.

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.

Where additional information is needed, follow this link 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.

High skill level is needed to exploit.

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