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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.2865 Advisory (ICSA-17-313-02) Schneider Electric InduSoft Web Studio and InTouch Machine Edition 10 November 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Schnedier Electric InduSoft Web Studio Schneider Electric InTouch Machine Edition Publisher: ICS-CERT Operating System: Windows Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-14024 Original Bulletin: https://ics-cert.us-cert.gov/advisories/ICSA-17-313-02 - --------------------------BEGIN INCLUDED TEXT-------------------- Advisory (ICSA-17-313-02) Schneider Electric InduSoft Web Studio and InTouch Machine Edition Original release date: November 09, 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 9.8 ATTENTION: Remotely exploitable/low skill level to exploit. Public exploits are available. Vendor: Schneider Electric Equipment: InduSoft Web Studio, InTouch Machine Edition Vulnerability: Stack-based Buffer Overflow AFFECTED PRODUCTS The following versions of InduSoft Web Studio and InTouch Machine Edition, an HMI, are affected: - -InduSoft Web Studio v8.0 SP2 Patch 1 and prior versions, and - -InTouch Machine Edition v8.0 SP2 Patch 1 and prior versions. IMPACT Successful exploitation of this vulnerability could allow a remote un-authenticated attacker to remotely execute code with high privileges. MITIGATION Schneider Electric recommends: - -Users using InduSoft Web Studio v8.0 SP2 Patch 1 or prior versions are affected and should upgrade and apply InduSoft Web Studio v8.1 as soon as possible. - -Users using InTouch Machine Edition v8.0 SP2 Patch 1 or prior versions are affected and should upgrade and apply InTouch Machine Edition 2017 v8.1 as soon as possible. Schneider Electric has also released Security Bulletin LFSEC00000124 that can be found at: http://software.schneider-electric.com/pdf/security-bulletin/lfsec00000124/ (link is external) NCCIC/ICS-CERT recommends that users take defensive measures to minimize the risk of exploitation of this vulnerability. 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 ICSCERT 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. VULNERABILITY OVERVIEW STACK-BASED BUFFER OVERFLOW CWE-121 The stack-based buffer overflow vulnerability has been identified, which may allow remote code execution with high privileges. CVE-2017-14024 has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). RESEARCHER Aaron Portnoy, formerly of Exodus Intelligence, reported the vulnerability to Schneider Electric. BACKGROUND Critical Infrastructure Sectors: Commercial Facilities, Critical Manufacturing, Energy, Transportation Systems, and Water and Wastewater Systems Countries/Areas Deployed: Worldwide Company Headquarters Location: France - --------------------------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 iQIVAwUBWgUrVYx+lLeg9Ub1AQhcTQ//RIszfdX/uDlIJcd+g2n7/KjbBptzkbdi vtyleWIirsp4ZV4hHm/YJuk4wlnaC798icwV7I5QztB4NbAP2Il61FLy92rti4HT MaFtcqDm7f+9/HMkQIDtQt8x0MgBOI6TPWLzIluJTzag7hJnVDM7LLjKQxCc0j3k F2qtg7rmsDFMPEHalklfi561bDNB92uXVkk/wMyhNtdRkz8QfQYD85ctzg6PurKv 6ZIFoznXRpaF4QmG1dcdt8eYqkmRRRWHbzCQy212s7SbTIXKI/yZJ9z274017QLV bXXKQiWwDaSAN0z/xjAdMuvz0SOffFr5yQq88bEk9xh+o2ruj//irDeWcOlwWrD2 oIJ75LWw/Bf9UX1WX2LtoQLwC35ECfZIHyeTF8nWN+zjBu5fvT/1rBmcgseLVtF8 RQIT31eS/oQZx3qfNXqRqObYGpS/fk+IH88XTgOmlie7wdakaxJxp1iT2gWN8P6g S410GyLmHLtinG1OJ2f2TBIFUL5K5Ac2hQS0EZF6WxUlvM6swpJOUiD/2xMEePss 6YO5ZBOeVPAf+AtQTpHnnVpmgTn+D9BWgnSWCis3u39z62m2AtkDoFvVlimgSuGQ GerBC2IWAForz0QFEldA51KY1WPBtS+LZI8CeVgcXj9l+S/Z5Rq6frXLQMEfOU4X oZKt0WXrkNY= =Dj4d -----END PGP SIGNATURE-----