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AUSCERT External Security Bulletin Redistribution
ESB-2019.1012
ENTTEC Lighting Controllers
27 March 2019
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AusCERT Security Bulletin Summary
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Product: ENTTEC Lighting Controllers
Publisher: US-CERT
Operating System: Network Appliance
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-6542
Original Bulletin:
https://ics-cert.us-cert.gov/advisories/ICSA-19-085-03-0
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Advisory (ICSA-19-085-03)
ENTTEC Lighting Controllers
Original release date: March 26, 2019
Legal Notice
All information products included in http://ics-cert.us-cert.gov are
provided"as is" for informational purposes only. The Department of Homeland
Security (DHS) does not provide any warranties of any kind regarding any
information contained within. DHS does not endorse any commercial product or
service, referenced in this product or otherwise. Further dissemination of this
product is governed by the Traffic Light Protocol (TLP) marking in the header.
For more information about TLP, see http://www.us-cert.gov/tlp/ .
1. EXECUTIVE SUMMARY
o CVSS v3 7.5
o ATTENTION: Exploitable remotely/low skill level to exploit
o Vendor: ENTTEC
o Equipment: Datagate MK2, Storm 24, Pixelator
o Vulnerability: Missing Authentication for Critical Function
2. RISK EVALUATION
Successful exploitation of this vulnerability could reboot this device allowing
a continual denial of service condition.
3. TECHNICAL DETAILS
3.1 AFFECTED PRODUCTS
ENTTEC reports that the vulnerability affects the following products and
versions:
o Datagate MK2 all firmware prior to 70044_update_05032019-482,
o Storm 24 all firmware prior to 70050_update_05032019-482, and
o Pixelator all firmware prior to 70060_update_05032019-482
3.2 VULNERABILITY OVERVIEW
3.2.1 MISSING AUTHENTICATION FOR CRITICAL FUNCTION CWE-306
An unauthenticated user can initiate a remote reboot, which may be used to
cause a denial of service condition.
CVE-2019-6542 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:N/I:N/A:H ).
3.3 BACKGROUND
o CRITICAL INFRASTRUCTURE SECTORS: Commercial Facilities
o COUNTRIES/AREAS DEPLOYED: Worldwide
o COMPANY HEADQUARTERS LOCATION: Australia
3.4 RESEARCHER
Ankit Anubhav of NewSky Security reported this vulnerability to NCCIC.
4. MITIGATIONS
ENTTEC recommends users upgrade to the March 2019 revB firmware or later which
can be downloaded from the following links:
Datagate MK2 70044_update_05032019-482:
https://www.enttec.com/product/controls/dmx-ethernet-lighting-control/
advanced-lighting-data-control/
Storm 24 70050_update_05032019-482:
https://www.enttec.com/product/controls/dmx-ethernet-lighting-control/
ethernet-to-dmx-converter/
Pixelator 70060_update_05032019-482:
https://www.enttec.com/product/controls/addressable-led-pixel-control/
24-port-ethernet-pixel-controller/
NCCIC recommends users take defensive measures to minimize the risk of
exploitation of this vulnerability. Specifically, users should:
o Minimize network exposure for all control system devices and/or systems,
and ensure that they are not accessible from the Internet .
o Locate control system networks and remote devices behind firewalls, and
isolate them from the business network.
o 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 this vulnerability.
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