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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.2475 Advisory (ICSA-18-233-01) Yokogawa iDefine, STARDOM, ASTPLANNER, and TriFellows 22 August 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Yokogawa ASTPLANNER Yokogawa iDefine Yokogawa STARDOM Yokogawa TriFellows Publisher: ICS-CERT Operating System: Network Appliance Impact/Access: Denial of Service -- Remote/Unauthenticated Execute Arbitrary Code/Commands -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2018-0651 Original Bulletin: https://ics-cert.us-cert.gov/advisories/ICSA-18-233-01 - --------------------------BEGIN INCLUDED TEXT-------------------- Advisory (ICSA-18-233-01) Yokogawa iDefine, STARDOM, ASTPLANNER, and TriFellows 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 8.6 o ATTENTION: Remotely exploitable/Low skill level to exploit o Vendor: Yokogawa o Equipment: iDefine, STARDOM, ASTPLANNER, and TriFellows o Vulnerability: Stack-based Buffer Overflow 2. RISK EVALUATION Successful exploitation of this vulnerability may allow arbitrary code execution, or the stopping of the license management function. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS According to Yokogawa the following products are affected: o ASTPLANNER: R15.01 and prior, o iDefine for ProSafe-RS: R1.16.3 and prior, o STARDOM: VDS R7.50 and prior and FCN/FCJ Simulator R4.20 and prior, and o TriFellows: Version 5.04 and prior. 3.2 VULNERABILITY OVERVIEW 3.2.1 STACK-BASED BUFFER OVERFLOW CWE-121 This vulnerability that affects the license management function when it receives specially crafted data. An attacker could overflow the buffer by exploiting this, which may result in the license management function stopping or result in arbitrary code execution. CVE-2018-0651 has been assigned to this vulnerability. A CVSS v3 base score of 8.6 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/ C:L/I:L/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 Yokogawa worked with JPCERT to report this vulnerability to NCCIC. 4. MITIGATIONS Yokogawa recommends users to update to the latest versions or apply the patch: ASTPLANNER: Update to R15.02.01 or contact support for the patch, o iDefine for ProSafe-RS: Update to R1.16.4, o STARDOM: Update to VDS R8.10 or contact support for the patch, and o TriFellows: Update to Version 5.10 or contact support for the patch. o Support: o iDefine for ProSafe-RS and STARDOM users: https://contact.yokogawa.com/cs/ gw?c-id=000498 o ASTPLANNER and TriFellows users: https://contact.yokogawa.com/cs/gw?c-id= 000497 When Yokogawa service personnel perform system upgrade or install patches, those charges are borne by the user. Please contact support in the following section for the countermeasures regarding the affected products. Yokogawa strongly suggests all users to introduce appropriate security measures not only for the vulnerability identified, but also to the overall systems. Refer to Yokogawa's security notification YSAR-18-0006 for more information, which can be located here: 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 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 iQIVAwUBW3zEoWaOgq3Tt24GAQjoLw//Z/87IQmTOhZRUuqoPidhkQkNgyV/sqgl pCIggMb5NXAxZpQTGG9cFU06y/W3XLVguSuyN9jgyM450rh+LXjccj1kEOUcsUg7 sH7GJSiAo+193iuqSXS6yp/zNWAW3/86JvAbNRNnMg87rv5FjHF+2dH2JElBf1Ik iHw9pCvoIiX7lkQSxCfuDWkGOK2vV0Skt3wyD+xEN+Ali2ZnSe+Fcp0GC0JE6uPz fuBGZn50iBFlALoaG7T0UL7CDEK5BqqrDPtVFJ0e8lq4eZQCbrOmy1qBozN0gor3 mrDzQ6FeQwCp5vYroszW75XrdDOCnpd0T+byTZYoOVZYA2s7uXwmV223gmHD4MRh oiKnL2YGr0CenBfSaTZmnz1Exz1zcTfo/O4paZcXHuM39OHpgMF9HE8p8A9SvAaN drid5HamwTv7Ar2f/uSBzyZmoMJw7d7wHTc5UHDPivHvHhDPJbf+Gliqj3zMShQX Jqi2qnm8xYVQ/1ObQar09td2S/NHkixxk3p9os+4l18rMglkh5nC3bzCGzkCLXwa G3BeRgZsNlame0hNvTidM6AFCJxJ1rr9TnsTEpO2Zq9uvjnBFFzzOHjrlYf/ul8l modKlubcHx+7eKdAJ+gr2Z0VCXEXizCM//Y8PUAVsMIf+sQt44kO4RubaVPYR4qb gELLYoSWo70= =YEoF -----END PGP SIGNATURE-----