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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.1446 Rockwell Automation Arena patches crash when opening invalid file 11 May 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Rockwell Automation Arena Publisher: ICS-CERT Operating System: Windows Impact/Access: Denial of Service -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2018-8843 Original Bulletin: https://ics-cert.us-cert.gov/advisories/ICSA-18-130-02 - --------------------------BEGIN INCLUDED TEXT-------------------- Advisory (ICSA-18-130-02) Rockwell Automation Arena Original release date: May 10, 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 * CVSS v3 5.5 * Vendor: Rockwell Automation * Equipment: Arena * Vulnerability: Use After Free 2. RISK EVALUATION Successful exploitation of this vulnerability could cause the software application to crash. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following versions of Arena, simulation software for manufacturing, are affected: * Arena versions 15.10.00 and prior. 3.2 VULNERABILITY OVERVIEW 3.2.1 USE AFTER FREE CWE-416 A use after free vulnerability caused by processing specially crafted Arena Simulation Software files may cause the software application to crash, potentially losing any unsaved data. CVE-2018-8843 has been assigned to this vulnerability. A CVSS v3 base score of 5.5 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:N /I:N/A:H). 3.3 BACKGROUND * Critical Infrastructure Sectors: Critical Manufacturing * Countries/Areas Deployed: Worldwide * Company Headquarters Location: Wisconsin, USA 3.4 RESEARCHER Ariele Caltabiano, working with Trend Micro?s Zero Day Initiative, reported this vulnerability to NCCIC. 4. MITIGATIONS Rockwell Automation encourages affected users to upgrade to the latest version of Arena software, v15.10.01 or later, which can be obtained from (login required): https://rockwellautomation.custhelp.com/app/answers/detail/a_id/1073588 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 this vulnerability. This vulnerability is not exploitable remotely. High skill level is needed to exploit. 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? - --------------------------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: 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 iQIVAwUBWvTfw4x+lLeg9Ub1AQj8VQ//XeQgif4uZDf/XirUCjmIHNIjTNmOTj6Q vpzvX6jw5vEEij+MFpkbHkOKBWYT4t8qpwKwcEQxoJbvxxXkMHKMrGqBy/6UiyvR fKzG6SDvcSilWw4iH1QUzh//2YTN9q0iAjV9K5E80v3M4HXWRcTyZUan+7p/0z31 q5Mf2ObFJPHpYMxbU42G56zaoA4tCyu4/Q+HUcZrY+qwyotX9Jr7ihiku5RbaHSk SBxZx/4oO0McycbI9tYWzVZaI30L9gaXoxzuE/OxKbmAkwn6X+ylJ3wJ7k4ItFU9 oHiG5Tpkgnks4PWZM/dPLIerc8W/6uqM8l3Oj+IEMpv88+iS/L/HG+AZooG+2d14 3QVf8/OGBQnRUvcUztTQruMisluNuhpG6MuEwuRTbUxJN3rDSNm/UqCPTvDKPadU a97NiYIltKCUWr4Kgk6+g35U72scTv6M10z0+xXnyoQr8mHdGQu1QbJeJcltQieE TCrakMhD3LLR8nJ/ejHrgkqkcj58GZCHl0TqBnT8EgLvyWGDJBX2zB8VtrQuZsHI 9EndgKlXhytxqxhFRUU7sV9pvxnw5Irw8OB+h6yo/0iICTDW6OIEDlb46m4N2Fu3 hKiLtUCANRZ9hOEUVOpxbHLfLwr/LKh+I1NGux5SZTceNIwJ1nYjD/zScLfm46Vt /8WRhuQfEwo= =0c+8 -----END PGP SIGNATURE-----