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TLP:WHITE

Advisory (ICSMA-18-144-01)

BeaconMedaes TotalAlert Scroll Medical Air Systems

Original release date: May 24, 2018 | Last revised: May 29, 2018

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1. EXECUTIVE SUMMARY

  • CVSS v3 7.5
  • ATTENTION: Exploitable remotely/low skill level to exploit
  • Vendor: BeaconMedaes
  • Equipment: TotalAlert Scroll Medical Air Systems web application
  • Vulnerabilities: Improper Access Control, Insufficiently Protected Credentials, Unprotected Storage of Credentials

2. RISK EVALUATION

Successful exploitation of these vulnerabilities could allow an attacker to view and potentially modify some device information and web application setup information, which does not include access to patient health information. Additionally, BeaconMedaes has stated that a successful attacker would not be able to affect the ability of the device to operate as designed for the purpose of delivering medical air in compliance with the NFPA 99 standard for healthcare facilities.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following TotalAlert Scroll Medical Air Systems web applications are affected:

  • TotalAlert Scroll Medical Air Systems running software Versions 4107600010.23 and prior.

3.2 VULNERABILITY OVERVIEW

3.2.1   IMPROPER ACCESS CONTROL CWE-284

By accessing a specific uniform resource locator (URL) on the webserver, a malicious user may be able to access information in the application without authenticating.  

CVE-2018-7526 has been assigned to this vulnerability. A CVSS v3 base score of 5.3 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).

3.2.2   INSUFFICIENTLY PROTECTED CREDENTIALS CWE-522

An attacker with network access to the integrated web server could retrieve default or user defined credentials stored and transmitted in an insecure manner.

CVE-2018-7518 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

3.2.3   UNPROTECTED STORAGE OF CREDENTIALS CWE-256

Passwords are presented in plaintext in a file that is accessible without authentication.

CVE-2018-7510 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

3.3 BACKGROUND

  • Critical Infrastructure Sectors: Healthcare and Public Health
  • Countries/Areas Deployed: Worldwide
  • Company Headquarters Location: U.S.

3.4 RESEARCHER

Maxim Rupp reported these vulnerabilities to NCCIC.

4. MITIGATIONS

BeaconMedaes has stated that the vulnerabilities do not compromise either patient health information or compliance with the NFPA 99 standard for healthcare facilities. To address these vulnerabilities, BeaconMedaes has created update 4107600010.24 and recommends that users of the TotalAlert Scroll Medical Air Systems update to this version or the latest release. BeaconMedaes recommends that affected users reach out to BeaconMedaes directly at 1-888-4MEDGAS (463-3427) to obtain this update.

NCCIC recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Specifically, users should:

  • Minimize network exposure for all control system devices and/or systems, and ensure that 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 that VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize that VPN is only as secure as the connected devices.

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 these vulnerabilities.


Contact Information

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

Email: NCCICCUSTOMERSERVICE@hq.dhs.gov
Toll Free: 1-888-282-0870

For industrial control systems cybersecurity information:  http://ics-cert.us-cert.gov 
or incident reporting:  https://ics-cert.us-cert.gov/Report-Incident?

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