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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.1652 Advisory (ICSA-18-151-03) Yokogawa STARDOM Controllers 1 June 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Yokogawa STARDOM Controllers Publisher: ICS-CERT Operating System: Network Appliance Impact/Access: Administrator Compromise -- Remote/Unauthenticated Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2018-10592 Original Bulletin: https://ics-cert.us-cert.gov/advisories/ICSA-18-151-03 - --------------------------BEGIN INCLUDED TEXT-------------------- Advisory (ICSA-18-151-03) Yokogawa STARDOM Controllers Original release date: May 31, 2018 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 CVSS v3 9.8 ATTENTION: Exploitable remotely/low skill level to exploit Vendor: Yokogawa Equipment: STARDOM Controllers Vulnerability: Hard-coded Credentials 2. RISK EVALUATION Successful exploitation of this vulnerability could allow an attacker to gain access to the affected device, which could result in remote code execution. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS Yokogawa reports the vulnerability affects the following STARDOM Controller products: FCJ (R4.02 and prior), FCN-100 (R4.02 and prior), FCN-RTU (R4.02 and prior), and FCN-500 (R4.02 and prior). 3.2 VULNERABILITY OVERVIEW 3.2.1 USE OF HARD-CODED CREDENTIALS CWE-798 The affected controllers utilize hard-coded credentials that could allow an attacker to gain unauthorized administrative access to the device, which could result in remote code execution. CVE-2018-10592 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). 3.3 BACKGROUND o Critical Infrastructure Sectors: Critical Manufacturing, Energy, and Food and Agriculture o Countries/Areas Deployed: Worldwide o Company Headquarters Location: Japan 3.4 RESEARCHER VDLab of Venustech and Dongfang Electric Corporation (DEC) reported this vulnerability to NCCIC. 4. MITIGATIONS Yokogawa has recommended users upgrade the FCN/FCJ software to Version R4.10 or later and reports that the vulnerability is remediated in that version. Yokogawa strongly suggests all users introduce appropriate security measures not only for the vulnerability identified but also to the overall system. Yokogawa recommends users with questions related to this report and information on obtaining the updates, please utilize the Product Inquiry contact details at the following location: http://stardom.biz/ Yokogawas Security Advisory Report, YSAR-18-0004: Vulnerability of hardcoded password in STARDOM controllers, and other Yokogawa security reports are available at the following URL: https://www.yokogawa.com/library/resources/white-papers/yokogawa-security-advisory-report-list/ NCCIC recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should: o Minimize and restrict remote device access where remote access is not required. 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 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: https://www.auscert.org.au/bulletins/ =========================================================================== 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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBWxCUaWaOgq3Tt24GAQgq2Q//Vs9wa98nhPDpclH6hTP9OF3eQIw7jWuH zDUyOm3e8IH9D17u4xVFfNUZM8yPBrJ1cZTAeXjIq2lPflHsfuymXgtrEekOAXX2 VNy4fy3cHf1xyNza8oL52SMj3MBisHztSTA4qOm6Thu0y46bCnHCAP7PiIXRvdN+ wSJ5F0BgYCdaX/Y6K3RLbn+XpQ5nyLnf9mZetLOAdIT2cqYwvrtUtD+3nPRKJ6/f 2KRXJYN1sSvOWi6hd2vG5qPDakHCnvLW6LjKdOA0wPrsbCDr+RDJGig0oX6ro61T OnBsOBmwrD2CdchhkbHZ/yi1C6WbTEtHG6tPSKlp2ZTnExtVtEU4XXwrj69K/1yW MGyxnu9pozi3AUo6OjfEYOfNUUdW78cGcJxpNAfxshHxkRk6P1HBNNzcguwzf8XS YcNptjj3daLsv1RjP4fPezqE0mavQYK8RwamBEYT34J4YssG2o9JdHDp7BPdvQQf NsYQjapTXo+D5qRhwnpSmy98tqxpz//Vuz3jfQ5yEP9Mzmso3TRvv2M1u/2n07by 9PRiCpDPWpt1JXIbnCaN17L5QkB+4g5Cc7tp84G5eA/Ra+tKejP2GTC7wEqXwCVI TTo4uA7xw/I3GIXm9h7thjc+4Si1WinHTK2Dd0aJdDlB+JYp9iXWRa3fNlfMmKYG /XL8WQ+Kmbg= =4XrA -----END PGP SIGNATURE-----