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icsIndustrial Control Systems Cyber Emergency Response TeamICSA-21-306-01
HistoryNov 02, 2021 - 12:00 p.m.

Sensormatic Electronics VideoEdge

2021-11-0212:00:00
Industrial Control Systems Cyber Emergency Response Team
www.cisa.gov
37

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS3

6.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N

AI Score

7.2

Confidence

High

EPSS

0.019

Percentile

88.6%

1. EXECUTIVE SUMMARY

  • CVSS v3 6.1 *ATTENTION: Exploitable remotely/low attack complexity
  • Vendor: Sensormatic Electronics, LLC, a subsidiary of Johnson Controls, Inc.
  • **Equipment:**VideoEdge
  • **Vulnerability:**Cross-site Scripting

2. RISK EVALUATION

Successful exploitation of this vulnerability could allow the execution of untrusted code when viewing the VideoEdge admin graphical user interface.

3. TECHNICAL DETAILS

3.1 AFFECTED PRODUCTS

The following versions of VideoEdge, a network video recorder, are affected:

  • VideoEdge: All versions prior to v5.7.1

3.2 VULNERABILITY OVERVIEW

3.2.1 IMPROPER NEUTRALIZATION OF INPUT DURING WEB PAGE GENERATION (‘CROSS-SITE SCRIPTING’) CWE-79

A vulnerability in the JQuery web user interface (UI) component could allow a webpage to be altered before it is served to users.

CVE-2020-11023 has been assigned to this vulnerability. A CVSS v3 base score of 6.1 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N).

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

Johnson Controls has identified the following specific mitigations users can apply to reduce the risk:

  • Upgrade VideoEdge to Version 5.7.1

For more detailed mitigation and product upgrade instructions, please see Johnson Controls Product Security Advisory JCI-PSA-2021-17 v1

Further ICS security notices and product security guidance are located at the Johnson Controls product security website.

Users with additional questions may contact Johnson Controls Global Product Security.

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 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 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 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.

References

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS3

6.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N

AI Score

7.2

Confidence

High

EPSS

0.019

Percentile

88.6%