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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.0777 ICS Advisory (ICSA-20-063-02) 4 March 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Emalytics Controller ILC Publisher: ICS-CERT Operating System: Network Appliance Impact/Access: Unauthorised Access -- Remote/Unauthenticated Reduced Security -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2020-8768 Original Bulletin: https://www.us-cert.gov/ics/advisories/icsa-20-063-02 - --------------------------BEGIN INCLUDED TEXT-------------------- ICS Advisory (ICSA-20-063-02) PHOENIX CONTACT Emalytics Controller ILC Original release date: March 03, 2020 Legal Notice All information products included in https://us-cert.gov/ics 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 https://www.us-cert.gov/tlp/ . 1. EXECUTIVE SUMMARY o CVSS v3 9.4 o ATTENTION: Exploitable remotely/low skill level to exploit o Vendor: Phoenix Contact o Equipment: Emalytics Controller ILC 2050 BI(L) o Vulnerability: Incorrect Permission Assignment for Critical Resource 2. RISK EVALUATION Successful exploitation of this vulnerability could allow an attacker to change the device configuration and start or stop services. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following versions of Emalytics Controller are affected: o ILC 2050 BI (Article number 2403160): all versions prior to 1.2.3 o ILC 2050 BI-L (Article number 2404671): all versions prior to 1.2.3 3.2 VULNERABILITY OVERVIEW 3.2.1 INCORRECT PERMISSION ASSIGNMENT FOR CRITICAL RESOURCE CWE-732 This device lacks proper permissions for read and write access to the configuration and start/stop services. CVE-2020-8768 has been assigned to this vulnerability. A CVSS v3 base score of 9.4 has been calculated; the CVSS vector string is ( AV:N/AC:L/PR:N/UI:N/S:U/ C:L/I:H/A:H ). 3.3 BACKGROUND o CRITICAL INFRASTRUCTURE SECTORS: Commercial Facilities, Energy o COUNTRIES/AREAS DEPLOYED: Worldwide o COMPANY HEADQUARTERS LOCATION: Germany 3.4 RESEARCHER 4. MITIGATIONS Phoenix Contact strongly recommends affected users update to engineering software Emalytics v1.2.3 or higher and recommission the controllers. The updated version is available on the vendor's product page . Please see advisory number VDE-2020-001 from CERT@VDE for more information. CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should: o Minimize network exposure for all control system devices and/or systems, and ensure that they are not accessible from the Internet . o Locate control system networks and remote devices behind firewalls, and isolate them from the business network. o 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. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on us-cert.gov . 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 webpage on us-cert.gov 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 CISA for tracking and correlation against other incidents. No known public exploits specifically target this vulnerability. For any questions related to this report, please contact the CISA at: Email: CISAservicedesk@cisa.dhs.gov Toll Free: 1-888-282-0870 CISA 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: 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 iQIVAwUBXl8HxmaOgq3Tt24GAQjg9g/9EoIMefAupvbSDj4YzvBXqxlWtHOiW84f IHr9WxLVeIOa96fgJY9nXTizrOPT0R9u7w+iHgU9VXzcr7vTYbDeLpuRzTXwh2WZ HmJNY7YaKr1SuEq32tVlCvviFO3q3p/wtcNXorfz3ZePCGDk7K4ZAmJkodegIE01 dFu3jOGbrxIiEhjxLyRkl2K8m4BI4LB2ydAcQFX9xEKa1b7mCzZw6VgQaP+QbkgZ vRFs7RiFvMM7hXowxzmDPalylmnQ3ydzHEa7oK1vXC1x6yRzxoVXAoEheOMq9C1S aIZbR67uNdaOIA6JjeulsRu5Opedt12G9/iDkXitRKikoPEChmjcZGNIfiTi0NgG 1W3QtjIKWfeuEGqoxlKut4DLC3oxZECqVwMMzVJSyzspwi4pI6Qd6dvOcwdlfiCx sVnPBw6wmHEqLS6zBkiH/1FOr+48cASnqmtnFKMIOwjR8yQFfIv83L+THvQ1+KDx QqVs9rANzly59qonyQtmF+2wiGSkZuW05p+Ltqy0Ibz70IUaCg7TaIUxIzfjOxkF iM8pxAqSlnKOp1xy9KldUVkUzOiDFmhqqOJ3Bh2yMHtXfhehwVM+SdBbnm5dsdbV JqhDAtu6Xdv6olfm7IhftboRM2hXs63ctu9N8MYyRVPh+t6OwTAc5yk7qdr+o5qK GYMzwPBvIzg= =0Tld -----END PGP SIGNATURE-----