1. EXECUTIVE SUMMARY

​CVSS v3 7.1
​ATTENTION: Low attack complexity
​Vendor: Sensormatic Electronics, LLC, a subsidiary of Johnson Controls Inc.
​Equipment: VideoEdge
​Vulnerability: Acceptance of Extraneous Untrusted Data with Trusted Data

2. RISK EVALUATION

​Successful exploitation of this vulnerability could allow a local user to edit the VideoEdge configuration file and interfere with VideoEdge operation.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

​The following Sensormatic Electronics, a subsidiary of Johnson Controls Inc, products are affected: 

​VideoEdge: Versions prior to 6.1.1

3.2 VULNERABILITY OVERVIEW

3.2.1 ​ACCEPTANCE OF EXTRANEOUS UNTRUSTED DATA WITH TRUSTED DATA CWE-349

​In Sensormatic VideoEdge versions prior to 6.1.1, a local user could edit the VideoEdge configuration file and interfere with VideoEdge operation.

​CVE-2023-3749 has been assigned to this vulnerability. A CVSS v3 base score of 7.1 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H).

3.3 BACKGROUND

​CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing
​COUNTRIES/AREAS DEPLOYED: Worldwide
​COMPANY HEADQUARTERS LOCATION: Ireland

3.4 RESEARCHER

​Johnson Controls, Inc. reported this vulnerability to CISA.

4. MITIGATIONS

​Sensormatic Electronics recommends users take the following action to apply proper mitigations:

​Update VideoEdge to version 6.1.1. The update can be downloaded from http://www.americandynamics.net under Support/Software Downloads/Network Video Recorders.

​For more detailed mitigation instructions, please see Johnson Controls Product Security Advisory JCI-PSA-2023-07 v1 at the following location: https://www.johnsoncontrols.com/cyber-solutions/security-advisories

​Further ICS security notices and product security guidance are located at our product security website.

​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 business networks.
​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 at cisa.gov/ics. Several CISA products detailing cyber defense best 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 at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B–Targeted Cyber Intrusion Detection and Mitigation Strategies.

​Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.

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