{ "document": { "acknowledgments": [ { "organization": "Siemens ProductCERT", "summary": "reporting these vulnerabilities to CISA." }, { "names": [ "Victor Fidalgo" ], "organization": "INCIBE", "summary": "coordinating disclosure of CVE-2020-7581" }, { "names": [ "Reid Wightman" ], "organization": "Dragos", "summary": "coordinating disclosure of CVE-2020-7581 and CVE-2020-7587" } ], "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "Disclosure is not limited", "tlp": { "label": "WHITE", "url": "https://us-cert.cisa.gov/tlp/" } }, "notes": [ { "category": "summary", "text": "The products listed below contain two security vulnerabilities in the\nUMC component that could allow an attacker to cause a partial denial-\nof-service of the UMC component, or to locally escalate privileges\nfrom a user with administrative privileges to execute code with SYSTEM\nlevel privileges. Siemens has released updates for several\naffected products and recommends to update to the latest versions.\nSiemens recommends specific countermeasures for products where updates\nare not, or not yet available.", "title": "Summary" }, { "category": "general", "text": "As a general security measure, Siemens strongly recommends to protect\nnetwork access to devices with appropriate mechanisms. In order to\noperate the devices in a protected IT environment, Siemens recommends\nto configure the environment according to Siemens' operational\nguidelines for Industrial Security (Download:\nhttps://www.siemens.com/cert/operational-guidelines-industrial-\nsecurity), and to follow the recommendations in the product manuals.\n\nAdditional information on Industrial Security by Siemens can be found\nat: https://www.siemens.com/industrialsecurity", "title": "General Recommendations" }, { "category": "general", "text": "For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories", "title": "Additional Resources" }, { "category": "legal_disclaimer", "text": "Siemens Security Advisories are subject to the terms and conditions contained in Siemens' underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter \"License Terms\"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens' Global Website (https://www.siemens.com/terms_of_use, hereinafter \"Terms of Use\"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the Terms of Use.", "title": "Terms of Use" }, { "category": "legal_disclaimer", "text": "All information products included in https://us-cert.cisa.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://us-cert.cisa.gov/tlp/.", "title": "Legal Notice" }, { "category": "other", "text": "This CISA CSAF advisory was converted from Siemens ProductCERT's CSAF advisory.", "title": "Advisory Conversion Disclaimer" }, { "category": "other", "text": "Multiple", "title": "Critical infrastructure sectors" }, { "category": "other", "text": "Worldwide", "title": "Countries/areas deployed" }, { "category": "other", "text": "Germany", "title": "Company headquarters location" }, { "category": "general", "text": "CISA recommends users take defensive measures to minimize the exploitation risk of this vulnerability.", "title": "Recommended Practices" }, { "category": "general", "text": "Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from the internet.", "title": "Recommended Practices" }, { "category": "general", "text": "Locate control system networks and remote devices behind firewalls and isolate them from business networks.", "title": "Recommended Practices" }, { "category": "general", "text": "When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most recent version available. Also recognize VPN is only as secure as its connected devices.", "title": "Recommended Practices" }, { "category": "general", "text": "CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.", "title": "Recommended Practices" }, { "category": "general", "text": "CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.", "title": "Recommended Practices" }, { "category": "general", "text": "CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.", "title": "Recommended Practices" }, { "category": "general", "text": "Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.", "title": "Recommended Practices" } ], "publisher": { "category": "other", "contact_details": "central@cisa.dhs.gov", "name": "CISA", "namespace": "https://www.cisa.gov/" }, "references": [ { "category": "self", "summary": "SSA-841348: Multiple Vulnerabilities in the UMC Component - CSAF Version", "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-841348.json" }, { "category": "self", "summary": "SSA-841348: Multiple Vulnerabilities in the UMC Component - TXT Version", "url": "https://cert-portal.siemens.com/productcert/txt/ssa-841348.txt" }, { "category": "self", "summary": "SSA-841348: Multiple Vulnerabilities in the UMC Component - PDF Version", "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-841348.pdf" }, { "category": "self", "summary": "ICS Advisory ICSA-20-196-05 JSON", "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2020/icsa-20-196-05.json" }, { "category": "self", "summary": "ICS Advisory ICSA-20-196-05 - Web Version", "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-20-196-05" }, { "category": "external", "summary": "Recommended Practices", "url": "https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01" }, { "category": "external", "summary": "Recommended Practices", "url": "https://www.cisa.gov/resources-tools/resources/ics-recommended-practices" }, { "category": "external", "summary": "Recommended Practices", "url": "https://www.cisa.gov/topics/industrial-control-systems" }, { "category": "external", "summary": "Recommended Practices", "url": "https://us-cert.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf" }, { "category": "external", "summary": "Recommended Practices", "url": "https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf" }, { "category": "external", "summary": "Recommended Practices", "url": "https://www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B" } ], "title": "Siemens UMC Stack (Update H)", "tracking": { "current_release_date": "2022-08-09T00:00:00.000000Z", "generator": { "engine": { "name": "CISA CSAF Generator", "version": "1.0.0" } }, "id": "ICSA-20-196-05", "initial_release_date": "2020-07-14T00:00:00.000000Z", "revision_history": [ { "date": "2020-07-14T00:00:00.000000Z", "legacy_version": "1.0", "number": "1", "summary": "Publication Date" }, { "date": "2020-08-11T00:00:00.000000Z", "legacy_version": "1.1", "number": "2", "summary": "Added solution for SIMATIC PCS neo" }, { "date": "2020-09-08T00:00:00.000000Z", "legacy_version": "1.2", "number": "3", "summary": "Added solution for SIMATIC STEP 7 (TIA Portal) V15" }, { "date": "2020-11-10T00:00:00.000000Z", "legacy_version": "1.3", "number": "4", "summary": "Added solution for SIMOCODE ES" }, { "date": "2020-12-08T00:00:00.000000Z", "legacy_version": "1.4", "number": "5", "summary": "Added solution for Soft Starter ES" }, { "date": "2021-02-09T00:00:00.000000Z", "legacy_version": "1.5", "number": "6", "summary": "Added solution for SIMOCODE ES V15 and Soft Starter ES V15" }, { "date": "2021-03-09T00:00:00.000000Z", "legacy_version": "1.6", "number": "7", "summary": "Added solution for SIMATIC IT Production Suite" }, { "date": "2021-04-13T00:00:00.000000Z", "legacy_version": "1.7", "number": "8", "summary": "Added solution for Opcenter Intelligence" }, { "date": "2021-07-13T00:00:00.000000Z", "legacy_version": "1.8", "number": "9", "summary": "Added solution for SIMATIC IT LMS" }, { "date": "2022-08-09T00:00:00.000000Z", "legacy_version": "1.9", "number": "10", "summary": "No fix planned for SIMATIC Notifier Server for Windows; corrected fix version information for SIMOCODE ES and Soft Starter ES" } ], "status": "final", "version": "10" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "