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 1. Industrial Control Systems    >
 2. ICS-CERT Advisories    >
 3. Philips e-Alert

More ICS-CERT Advisories


ICS MEDICAL ADVISORY (ICSMA-22-088-01)


PHILIPS E-ALERT

Original release date: March 29, 2022



LEGAL NOTICE

All information products included in https://us-cert.cisa.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
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For more information about TLP, see https://us-cert.cisa.gov/tlp/.

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1. EXECUTIVE SUMMARY

 * CVSS v3 6.5
 * ATTENTION: Exploitable from an adjacent network/low attack complexity
 * Vendor: Philips
 * Equipment: e-Alert
 * Vulnerability: Missing Authentication for Critical Function


2. RISK EVALUATION

Successful exploitation of this vulnerability may allow an unauthorized actor to
remotely shutdown the system, if on the healthcare facilities network.


3. TECHNICAL DETAILS


3.1 AFFECTED PRODUCTS

The following versions of e-Alert, an MRI system monitoring platform, are
affected:

 * e-Alert Version 2.7 and prior


3.2 VULNERABILITY OVERVIEW

3.2.1    MISSING AUTHENTICATION FOR CRITICAL FUNCTION CWE-306

The software does not perform any authentication for critical system
functionality.

CVE-2022-0922 has been assigned to this vulnerability. A CVSS v3 base score of
6.5 has been calculated; the CVSS vector string is
(AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).


3.3 BACKGROUND

 * CRITICAL INFRASTRUCTURE SECTORS: Healthcare and Public Health
 * COUNTRIES/AREAS DEPLOYED: Worldwide
 * COMPANY HEADQUARTERS LOCATION: Netherlands


3.4 RESEARCHER

External researcher Andrew Dedmon reported this vulnerability to Philips.


4. MITIGATIONS

Philips plans a new release to remediate this vulnerability before July 2022. As
an interim mitigation to this vulnerability, Philips recommends the following:

 * Users should operate all Philips deployed and supported products within
   Philips authorized specifications, including physical and logical controls.
   Only authorized personnel should be permitted to access the network and the
   devices connected to it.

Users with questions about their specific e-Alert product should contact a
Philips service support team(link is external) or regional service support.
Users can also reference the Philips advisory(link is external) for more
details.

CISA recommends users take defensive measures to minimize the risk of
exploitation of this vulnerability. Specifically, users should:

 * Minimize network exposure for all control system devices and/or systems, and
   ensure they are not accessible from the Internet.
 * Locate control system networks 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 VPNs may have vulnerabilities and should be
   updated to the most current version available. Also recognize VPN is only as
   secure as its connected devices.

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 cisa.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 cisa.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.



CONTACT INFORMATION

For any questions related to this report, please contact the CISA at:

Email: CISAservicedesk@cisa.dhs.gov(link sends email)
Toll Free: 1-888-282-0870

For industrial control systems cybersecurity information: 
https://us-cert.cisa.gov/ics 
or incident reporting:  https://us-cert.cisa.gov/report

CISA continuously strives to improve its products and services. You can help by
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CONTACT US

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