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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.1473
                Advisory (ICSMA-19-120-01) Philips Tasy EMR
                                1 May 2019

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        AusCERT Security Bulletin Summary
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Product:           Philips Tasy EMR
Publisher:         ICS-CERT
Operating System:  Network Appliance
Impact/Access:     Cross-site Scripting -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-6562  

Original Bulletin: 
   https://ics-cert.us-cert.gov/advisories/ICSMA-19-120-01

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Medical Advisory (ICSMA-19-120-01)

Philips Tasy EMR

Original release date: April 30, 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

  o CVSS v3 4.1
  o ATTENTION: Low skill level to exploit
  o Vendor: Philips
  o Equipment: Tasy EMR
  o Vulnerability: Cross-site Scripting

2. RISK EVALUATION

Successful exploitation of this vulnerability could impact or compromise
patient confidentiality and system integrity. Philips' analysis has shown these
issues, if fully exploited, may allow attackers of low skill in the customer
site or on a VPN to provide unexpected input into the application, execute
arbitrary code, alter the intended control flow of the system, and access
sensitive information.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of Tasy EMR, a clinical and administrative
workflow-based information system, are affected:

  o Tasy EMR Versions 3.02.1744 and prior

3.2 VULNERABILITY OVERVIEW

3.2.1 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 ).

3.3 BACKGROUND

  o CRITICAL INFRASTRUCTURE SECTORS: Healthcare and Public Health
  o COUNTRIES/AREAS DEPLOYED: Brazil, Mexico
  o COMPANY HEADQUARTERS LOCATION: Netherlands

3.4 RESEARCHER

Security researcher Rafael Honorato reported this vulnerability to Philips.

4. MITIGATIONS

Users should follow the instructions in the product configuration manual and
not provide Tasy EMR with access to the Internet without a VPN. Users are also
advised to update to the most recent three released versions of the product,
following the Tasy EMR release schedule. 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.

Users with questions regarding Tasy EMR should follow the service procedure and
open a Service Order to Philips.

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

https://www.philips.com/productsecurity

NCCIC 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 that can be found at the
    following location:

https://www.fda.gov/MedicalDevices/DigitalHealth/ucm373213.htm

NCCIC reminds organizations to perform proper impact analysis and risk
assessment prior to deploying defensive measures.

NCCIC also provides a section for control systems security recommended
practices on the ICS-CERT web page. 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-CERT website 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 NCCIC for tracking
and correlation against other incidents.

No known public exploits specifically target this vulnerability. This
vulnerability is not exploitable remotely.

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