ICS Advisory (ICSA-19-337-01)

Reliable Controls LicenseManager

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1. EXECUTIVE SUMMARY

  • CVSS v3 7.8
  • ATTENTION: Low skill level to exploit
  • Vendor: Reliable Controls
  • Equipment: LicenseManager
  • Vulnerability: Unquoted Search Path or Element

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow an attacker to crash the system, view sensitive data, or execute arbitrary commands.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of LicenseManager are affected:

  • RC-LicenseManager: Versions 3.4 and prior

3.2 VULNERABILITY OVERVIEW

3.2.1 UNQUOTED SEARCH PATH OR ELEMENT CWE-428

An authenticated user may be able to insert malicious code into the system root path, which may allow execution of code with elevated privileges of the application.

CVE-2019-18245 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

3.3 BACKGROUND

  • CRITICAL INFRASTRUCTURE SECTORS: Commercial Facilities, Critical Manufacturing, Government Facilities
  • COUNTRIES/AREAS DEPLOYED: Worldwide
  • COMPANY HEADQUARTERS LOCATION: Canada

3.4 RESEARCHER

Gjoko Krstic of Applied Risk reported this vulnerability to CISA.

4. MITIGATIONS

Reliable Controls has released RC-LicenseManager Version 3.5, which is bundled for use within the latest RC-Studio software. Reliable Controls recommends users upgrade to RC Studio 3.6.3, which can be obtained at the following link:

https://www.reliablecontrols.com/support/software/releases.php (Login Required)

CISA recommends users take the following measures to protect themselves from social engineering attacks:

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 this vulnerability. This vulnerability is not exploitable remotely.


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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