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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.2703 Advisory (ICSA-18-254-02) 12 September 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Fuji Electric V-Server Lite Publisher: ICS-CERT Operating System: Network Appliance Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Denial of Service -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2018-10637 Original Bulletin: https://ics-cert.us-cert.gov/advisories/ICSA-18-254-02 - --------------------------BEGIN INCLUDED TEXT-------------------- Advisory (ICSA-18-254-02) Fuji Electric V-Server Lite Original release date: September 11, 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 o CVSS v3 7.8 o ATTENTION: Exploitable remotely/low skill level to exploit o Vendor: Fuji Electric o Equipment: V-Server Lite o Vulnerability: Classic Buffer Overflow 2. RISK EVALUATION Successful exploitation of this vulnerability could allow a remote attacker to view sensitive information and disrupt the availability of the device. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following versions of V-Server Lite, a data collection and management service, are affected: o V-Server Lite 4.0.3.0 and prior. 3.2 VULNERABILITY OVERVIEW 3.2.1 BUFFER COPY WITHOUT CHECKING SIZE OF INPUT ('CLASSIC BUFFER OVERFLOW') CWE-120 A maliciously crafted project file may cause a buffer overflow, which may allow the attacker to execute arbitrary code. CVE-2018-10637 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). 3.3 BACKGROUND o CRITICAL INFRASTRUCTURE SECTORS: Critical Manufacturing o COUNTRIES/AREAS DEPLOYED: Worldwide o COMPANY HEADQUARTERS LOCATION: Japan 3.4 RESEARCHER Ariele Caltabiano (kimiya) working with Trend Micro's Zero Day Initiative reported the vulnerability to NCCIC. 4. MITIGATIONS Fuji Electric has produced firmware update v4.0.4.0, which can be obtained here: http://monitouch.fujielectric.com/site/support-e/download-index-01.html 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. Contact Information For any questions related to this report, please contact the NCCIC at: Email: NCCICCUSTOMERSERVICE@hq.dhs.gov Toll Free: 1-888-282-0870 For industrial control systems cybersecurity information: http://ics-cert.us-cert.gov or incident reporting: https://ics-cert.us-cert.gov/Report-Incident? The NCCIC 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: 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 iQIVAwUBW5havWaOgq3Tt24GAQipHhAAtq774jwEcFvzMfwv6pYV9345MV+X8ItK 1H8AFPUNBmsE2KnC452ls7oC8ScZ8EeMsQFwVymqeffyPD9FKs3YoJ+Oh53gYcxb 3iErq5qrD6QzvfFxYKDTXZ6HRSqCxPokGo4i25VW8sBYydU2NnYRwGmxmZ2dYbzW cP/qZI5XgDqBdTnB3XXL1CTb2HSQ2a6+MH0diEgwyXhO6XLofQBaNh2CFyWpNFDq CS8HpM8ihgELJ1o7DsTRW4zid/NE/nnfWmNax4KkfmiTLU3RRM9oaA614eV+GeTS Ip4FmBZ0bFl37PriYCLYYGgQm1YwX0vOaCgxEdmpvMecjOwVY6WBOnbIE6XRjkQx B204vMcPMbnq6PkziDkrnuSXiGoEriwqJTWvwO6QueF21AZle8lVUptjATpyjfi0 Ozh5qSNPXnR2lcgW7gPfKiqRBsV2q1YOPVzW2GBmfFvZNbVOqhiJkiSR6zyg2LUp couprdZv51ensZ3bHC2rA+DsYLd+pPXaz7hIoIZ1JCkTtTILOxlr4Wj32E4wNh7O B1Iuqgs7FLtni7arSutCYXG2Jw8AWyvI1Bu4fe5e2mgbILkog+CidKH1YrSVRqwx ZSqXIC3xh4eYmeKbnDHTGz8vqY9/czvcRr9QB7i3lfU14+OmHm98V6xX4Sq6z9Yr aMAJPalMyUY= =TcNZ -----END PGP SIGNATURE-----