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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.0599 Schneider Electric Wonderware Intelligence 8 March 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Schneider Electric Wonderware Intelligence Publisher: ICS-CERT Operating System: Network Appliance Impact/Access: Root Compromise -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-5178 Original Bulletin: https://ics-cert.us-cert.gov/advisories/ICSA-17-066-01 - --------------------------BEGIN INCLUDED TEXT-------------------- Advisory (ICSA-17-066-01) Schneider Electric Wonderware Intelligence Original release date: March 07, 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. Vendor: Schneider Electric Equipment: Wonderware Intelligence Vulnerability: Credentials Management AFFECTED PRODUCTS The following versions of Wonderware Intelligence, an operations management software, are affected: Tableau Server/Desktop Versions 7.0 to 10.1.3 included in Wonderware Intelligence Versions 2014R3 and prior. IMPACT The vulnerability, if exploited, could allow a malicious entity to escalate its privilege to an administrator and take control over the host machine where Tableau Server is installed. MITIGATION Schneider Electric has released a new software version to address the identified vulnerability and recommends that users using affected versions apply Tableau Server Version 10.1.4. In addition, the Analytics Client (Tableau Desktop OEM) should also be upgraded to Version 10.1.4. Upgrading to Intelligence Server 2014 R3 is also recommended. The Schneider Electric customers using Wonderware Intelligence can login at the following support sites to download the Tableau patches: Tableau Analytics Dashboard Server v10.1.4 https://gcsresource.invensys.com/tracking/ConfirmDownload.aspx?id=22386 (link is external) Tableau Analytics Client v10.1.4 https://gcsresource.invensys.com/tracking/ConfirmDownload.aspx?id=22385 (link is external) Wonderware Intelligence 2014 R3 https://gcsresource.invensys.com/tracking/ConfirmDownload.aspx?id=22288 (link is external) Schneider Electric has issued Security Bulletin LFSEC00000119, which contains additional information: http://software.schneider-electric.com/support/cyber-security-updates/ (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. No known public exploits specifically target this vulnerability. VULNERABILITY OVERVIEW CREDENTIALS MANAGEMENT CWE-255 Tableau Server is embedded within the Schneider Electric Wonderware Intelligence software and contains a system account that is installed by default. The default system account is difficult to modify to use non-default credentials after installation and changing the default credentials in the embedded Tableau Server is not documented. As such, Schneider Electric has released a new software version that removes the default system account in the embedded Tableau Server. If Tableau Server is used with Windows integrated security (Active Directory), the software is not vulnerable. However, when Tableau Server is used with local authentication mode, the software is vulnerable. The default system account could be used to gain unauthorized access. CVE-2017-5178 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). RESEARCHER Schneider Electric self-reported this vulnerability. BACKGROUND Critical Infrastructure Sectors: Critical Manufacturing, Energy, Healthcare and Public Health, and Water and Wastewater Systems Countries/Areas Deployed: Worldwide Company Headquarters Location: Paris, France Contact Information For any questions related to this report, please contact ICS-CERT at: Email: email@example.com (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 firstname.lastname@example.org 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: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: email@example.com 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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