Johnson Controls Sensormatic Electronics Illustra

1. EXECUTIVE SUMMARY

CVSS v3 7.8
ATTENTION: Low attack complexity
Vendor: Sensormatic Electronics, LLC, a subsidiary of Johnson Controls, Inc.
Equipment: Illustra
Vulnerability: Off-by-one Error

Successful exploitation of this vulnerability could allow a local attacker to obtain super user access to the underlying Linux operating system.

Johnson Controls reports this vulnerability affects the following Sensormatic Electronics Illustra camera systems:

Under specific circumstances, a local attacker could exploit this vulnerability to obtain super user access to the underlying Linux operating system.

CVE-2021-3156 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).

Johnson Controls reported this vulnerability to CISA.

Users are recommended update to one of the following firmware versions:

For more detailed mitigation instructions, please see Johnson Controls Product Security Advisory JCI-PSA-2021-13

Johnson Controls recommends taking steps to minimize risks to all building automation systems.

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

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.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 us-cert.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. This vulnerability is not exploitable remotely.

This product is provided subject to this Notification and this Privacy & Use policy.