27 March 2019
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.1012 ENTTEC Lighting Controllers 27 March 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- 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 - --------------------------BEGIN INCLUDED TEXT-------------------- 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. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to email@example.com and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: firstname.lastname@example.org Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXJr5VGaOgq3Tt24GAQgvIBAAldGXYyhbeCsskyh8M2vCVjHJ+dGN3BCL t7rTSaoytS1VXmm/KeKtS/UQVMyj/TlrEnXuDsVgWjuFwphG8dPlKLAu4g3n0sLI cl6Ry1JyvJYGqEjKfLmYRwfxxQw/r/m5EtQkq6pLiUIPIX6x3iecl/Ht2SdHZ8o8 uqQtXSQusdXZfeDSbrvkhS495mCHWv29iZIznqs5Et84v0Zx0zafizaLgDzuSXMx Kdy9NjDl4Ei3D2VpB46W2fMvkYyj9l3gro63w4jEkVmWWZE0qcXb1ykcY2BiWh1Z XkHhg00dlUlY/oEQlkbCwn+qfXvs6QypnJj6g6iflEm8EXYlIe4njPcRn25+QYYl ZnCH+NLtPUvXo58QjQvTHU6Y4KFCUzD2N/DHVpmd/TAj2duIRdKIAs5GTCUaeMNe hXpMBvzLLuNEicuJSRQotA6UWBfsIUNEllpK0XZtfhoo31txSWm2ou8LRZSC3QTL IYhyKHEUG0jWYjl/j4azriloc3yT3X8d9Qpu2nBU8FtEFnHsFgxiRCZSkKL6475t H5uAaLbDqd8htmU1HeGvef7lwA8ybwrZLe1yZGV7W4+Mx/kxWAdGZ035LIFMipGK Kcap/Kw1jsXAEadkJagIy4wUR5VSsMkukJ9iIcJCeFuG6q6/6vNIKb0FnnvNA8+A b3MpuqljTdE= =VdjC -----END PGP SIGNATURE-----