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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.0344 Multiple vulnerabilities have been identified in AVEVA InduSoft Web Studio and InTouch Edge HMI 6 February 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: AVEVA InduSoft Web Studio and InTouch Edge HMI Publisher: ICS-CERT Operating System: Windows Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-6545 CVE-2019-6543 Original Bulletin: https://ics-cert.us-cert.gov/advisories/ICSA-19-036-01 - --------------------------BEGIN INCLUDED TEXT-------------------- Advisory (ICSA-19-036-01) AVEVA InduSoft Web Studio and InTouch Edge HMI Original release date: February 05, 2019 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 CVSS v3 9.8 ATTENTION: Exploitable remotely/low skill level to exploit Vendor: AVEVA Software, LLC (AVEVA) Equipment: InduSoft Web Studio and InTouch Edge HMI (formerly InTouch Machine Edition) Vulnerabilities: Missing Authentication for Critical Function, Resource Injection 2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow a remote attacker to execute an arbitrary process using a specially crafted database connection configuration file. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following versions of AVEVA products are affected: InduSoft Web Studio prior to Version 8.1 SP3, and InTouch Edge HMI (formerly InTouch Machine Edition) prior to Version 2017 Update 3.2 VULNERABILITY OVERVIEW 3.2.1 MISSING AUTHENTICATION FOR CRITICAL FUNCTION CWE-306 Code is executed under the program runtime privileges, which could lead to the compromise of the machine. CVE-2019-6543 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). 3.2.2 IMPROPER CONTROL OF RESOURCE IDENTIFIERS ('RESOURCE INJECTION') CWE-99 An unauthenticated remote user could use a specially crafted database connection configuration file to execute an arbitrary process on the server machine. CVE-2019-6545has 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). 3.3 BACKGROUND CRITICAL INFRASTRUCTURE SECTORS: Chemical, Commercial Facilities, Critical Manufacturing, Energy, Food and Agriculture, Transportation Systems, and Water and Wastewater COUNTRIES/AREAS DEPLOYED: Worldwide COMPANY HEADQUARTERS LOCATION: United Kingdom 3.4 RESEARCHER AVEVA, working with Tenable Research, reported these vulnerabilities to NCCIC. 4. MITIGATIONS AVEVA recommends affected users upgrade to the latest version of affected products. The following security updates address the vulnerabilities outlined in this advisory. Software updates can be downloaded from the Global Customer Support Software Download area or from the links below: The latest version of InduSoft Web Studio can be found at: http://download.indusoft.com/81.3.0/IWS81.3.0.zip The latest version of InTouch Edge HMI can be found at (login required): https://softwaresupportsp.schneider-electric.com/#/producthub/details?id=52354 For information on how to reach AVEVA support for a specific product, please refer to these links: AVEVA Software Global Customer Support and InduSoft Support. For the latest security information and security updates, please visit AVEVAs Security Central (login required) and InduSoft Security Updates. AVEVA has published Security Bulletin LFSEC00000133 on their website at the following location: https://sw.aveva.com/hubfs/assets-2018/pdf/security-bulletin/SecurityBulletin_LFSec133.pdf NCCIC recommends 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. 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 these vulnerabilities. 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). 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