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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.2412 Advisory (ICSA-17-264-02): A vulnerability has been identified in Ctek, Inc. SkyRouter 22 September 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Ctek, Inc. SkyRouter Publisher: ICS-CERT Operating System: Network Appliance Impact/Access: Unauthorised Access -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-14000 Original Bulletin: https://ics-cert.us-cert.gov/advisories/ICSA-17-264-02 - --------------------------BEGIN INCLUDED TEXT-------------------- Advisory (ICSA-17-264-02) Ctek, Inc. SkyRouter Original release date: September 21, 2017 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/. CVSS v3 8.6 ATTENTION: Remotely exploitable/low skill level to exploit. Vendor: Ctek, Inc. Equipment: SkyRouter Vulnerability: Improper Authentication AFFECTED PRODUCTS The following versions of SkyRouter, a wireless and automation solution, are affected: SkyRouter Series 4200 and 4400 all versions prior to V6.00.11 IMPACT Successful exploitation of this vulnerability may allow an unauthorized user to view and edit settings without authenticating. MITIGATION Ctek, Inc., reports they have addressed this issue and addressed additional security requirements in their latest security release V6.00.11, which is now available on all models currently in production. These models are identified as Z4500, Z4550, and Z4400. The update can be obtained via the wireless devices Tool and Utilities Section, which provides an Over-The-Air Firmware update mechanism. Ctek, Inc., reports that due to industry demand, wireless carriers are rapidly eliminating 2G and 3G CDMA service and they will not be creating any additional update releases for those products. Ctek, Inc., reports they are now selling a 4G version of the SkyRouter which they confirm the latest firmware release in this product does address the issues that were reported in the 3G device. They no longer sell the 2G/3G version of the SkyRouter on which the vulnerability was originally reported. NCCIC/ICS-CERT recommends that users take defensive measures to minimize the risk of exploitation of this vulnerability. ICS-CERT reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. ICS-CERT 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 in the ICS-CERT Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies, that is available for download from the ICS-CERT web site. Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to ICS-CERT for tracking and correlation against other incidents. No known public exploits specifically target this vulnerability. VULNERABILITY OVERVIEW IMPROPER AUTHENTICATION CWE-287 By accessing a specific uniform resource locator (URL) on the web server, a malicious user is able to access the application without authenticating. CVE-2017-14000 has been assigned to this vulnerability. A CVSS v3 base score of 8.6 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L). RESEARCHER Maxim Rupp reported the vulnerability to ICS-CERT. BACKGROUND Critical Infrastructure Sectors: Commercial Facilities, Communications, Food and Agriculture, Transportation Systems, and Water and Wastewater Systems Countries/Areas Deployed: Worldwide Company Headquarters Location: San Pedro, California Contact Information For any questions related to this report, please contact ICS-CERT at: Email: ics-cert@hq.dhs.gov (link sends e-mail) Toll Free: 1-877-776-7585 International Callers: (208) 526-0900 For industrial control systems security information and incident reporting: http://ics-cert.us-cert.gov ICS-CERT continuously strives to improve its products and services. You can help by choosing one of the links below to provide feedback about this product. - --------------------------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 auscert@auscert.org.au 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: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au 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). 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