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AUSCERT External Security Bulletin Redistribution
ESB-2019.1473.2
Advisory (ICSMA-19-120-01) Philips Tasy EMR
8 November 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: Philips Tasy EMR
Publisher: ICS-CERT
Operating System: Network Appliance
Impact/Access: Cross-site Scripting -- Existing Account
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-13557 CVE-2019-6562
Reference: ESB-2019.1473
Original Bulletin:
https://ics-cert.us-cert.gov/advisories/ICSMA-19-120-01
Revision History: November 8 2019: New vulnerability, affected products and
mitigation information added
May 1 2019: Initial Release
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ICS Medical Advisory (ICSMA-19-120-01)
Philips Tasy EMR (Update A)
Original release date: November 07, 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
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/ .
1. EXECUTIVE SUMMARY
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o CVSS v3 4.3
o ATTENTION: Low skill level to exploit
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o Vendor: Philips
o Equipment: Tasy EMR
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o Vulnerability: Cross-site Scripting, Information Exposure
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2. UPDATE INFORMATION
This updated advisory is a follow-up to the original advisory titled
ICSMA-19-120-01 Philips Tasy EMR that was published April 30, 2019, on the ICS
webpage on us-cert.gov.
3. RISK EVALUATION
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Successful exploitation of these vulnerabilities could impact or compromise
patient confidentiality and system integrity. Philips' analysis has shown these
issues, if fully exploited, may allow an attacker of low skill to provide
unexpected input into the application, execute arbitrary code, alter the
intended control flow of the system, and access sensitive information.
- --------- End Update A Part 3 of 7 ---------
4. TECHNICAL DETAILS
4.1 AFFECTED PRODUCTS
The following versions of Tasy EMR, a clinical and administrative
workflow-based information system, are affected:
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o Tasy EMR Versions 3.02.1744 and prior
o Tasy WebPortal Versions 3.02.1757 and prior
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4.2 VULNERABILITY OVERVIEW
4.2.1 IMPROPER NEUTRALIZATION OF INPUT DURING WEB PAGE GENERATION ('CROSS-SITE
SCRIPTING') CWE-79
The software incorrectly neutralizes user-controllable input before it is
placed in output that is used as a web page that is served to other users.
CVE-2019-6562 has been assigned to this vulnerability. A CVSS v3 base score of
4.1 has been calculated; the CVSS vector string is ( AV:A/AC:L/PR:L/UI:R/S:U/
C:L/I:L/A:N ).
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4.2.2 INFORMATION EXPOSURE CWE-200
There is an information exposure vulnerability which may allow a remote
attacker to access system and configuration information.
CVE-2019-13557 has been assigned to this vulnerability. A CVSS v3 base score of
4.3 has been calculated; the CVSS vector string is ( AV:N/AC:L/PR:L/UI:N/S:U/
C:L/I:N/A:N ).
- --------- End Update A Part 5 of 7 ---------
4.3 BACKGROUND
o CRITICAL INFRASTRUCTURE SECTORS: Healthcare and Public Health
o COUNTRIES/AREAS DEPLOYED: Brazil, Mexico
o COMPANY HEADQUARTERS LOCATION: Netherlands
4.4 RESEARCHER
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Security researcher Rafael Honorato reported and Unimed de Blumenau Cooperativa
de Trabalho Medico IT Department each separately reported a vulnerability to
Philips.
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5. MITIGATIONS
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Philips advises users to update to the most recently released versions of the
product, following the Tasy EMR release schedule. Update Tasy EMR, to version
3.03.1745 or higher and update Tasy WebPortal, to version 3.03.1758 or higher.
Philips also recommends users follow the instructions in the product
configuration manual and follow market standard best practices from the
application server manufacturer documentation related to security.
- --------- End Update A Part 7 of 7 ---------
Users should upgrade Service Packs as soon as possible. Hosted solutions will
be patched automatically. Users running the application on premise are always
alerted via release notes on changes to the system.
CISA recommends users take defensive measures to minimize the risk of
exploitation of these vulnerabilities. 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 that can be found at the
following location:
https://www.fda.gov/MedicalDevices/DigitalHealth/ucm373213.htm
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 these vulnerabilities.
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