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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.1996 Fuji Electric Monitouch V-SFT 11 August 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Fuji Electric Monitouch V-SFT Publisher: ICS-CERT Operating System: Windows Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Increased Privileges -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2017-9662 CVE-2017-9660 CVE-2017-9659 Original Bulletin: https://ics-cert.us-cert.gov/advisories/ICSA-17-222-04 - --------------------------BEGIN INCLUDED TEXT-------------------- Advisory (ICSA-17-222-04) Fuji Electric Monitouch V-SFT Original release date: August 10, 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 7.3 ATTENTION: Remotely exploitable/low skill level to exploit. Vendor: Fuji Electric Equipment: Monitouch V-SFT Vulnerabilities: Stack-Based Buffer Overflow, Heap-Based Buffer Overflow, Improper Privilege Management AFFECTED PRODUCTS The following versions of Monitouch V-SFT, a screen configuration software, are affected: Monitouch V-SFT, versions prior to Version 5.4.43.0 IMPACT Successful exploitation of these vulnerabilities could allow remote code execution or cause the software that the attacker is accessing to crash. The improper privilege management vulnerability could allow an attacker with local access to escalate privileges. MITIGATION Fuji Electric has released a new version of Monitouch V-SFT, Version 5.4.43.0, to fix these vulnerabilities. Users can download the update at the following location: http://proself.hakko-elec.co.jp/public/qAW0wAxKdQoAj_0BP8ddt6DJIYPCHSIrxFA09Q5YfPMd (link is external) NCCIC/ICS-CERT recommends that users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Specifically, users should: Minimize network exposure for all control system devices and/or systems, and ensure that they are not accessible from the Internet. Locate control system networks and remote devices behind firewalls, and isolate them from the business network. 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. 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 these vulnerabilities. VULNERABILITY OVERVIEW STACK-BASED BUFFER OVERFLOW CWE-121 The stack-based buffer overflow vulnerability has been identified, which may cause a crash or allow remote code execution. CVE-2017-9659 has been assigned to this vulnerability. A CVSS v3 base score of 7.3 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L). HEAP-BASED BUFFER OVERFLOW CWE-122 A heap-based buffer overflow vulnerability has been identified, which may cause a crash or allow remote code execution. CVE-2017-9660 has been assigned to this vulnerability. A CVSS v3 base score of 7.3 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L). IMPROPER PRIVILEGE MANAGEMENT CWE-269 Monitouch V-SFT is installed in a directory with weak access controls by default, which could allow an authenticated attacker with local access to escalate privileges. CVE-2017-9662 has been assigned to this vulnerability. A CVSS v3 base score of 4.5 has been assigned; the CVSS vector string is (AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L). RESEARCHER Independent researchers Fritz Sands and kimiya working with Trend Micro's Zero Day Initiative identified these vulnerabilities. BACKGROUND Critical Infrastructure Sector: Critical Manufacturing, Energy Countries/Areas Deployed: Worldwide Company Headquarters Location: Japan 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. 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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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