{ "document": { "acknowledgments": [ { "names": [ "Artem Zinenko" ], "organization": "Kaspersky ", "summary": "reporting this vulnerability to Siemens." } ], "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "Disclosure is not limited", "tlp": { "label": "WHITE", "url": "https://us-cert.cisa.gov/tlp/" } }, "lang": "en", "notes": [ { "category": "summary", "text": "A vulnerability in the affected products could allow an unauthorized attacker with network access to perform a denial-of-service attack resulting in loss of real-time synchronization.\n\nSiemens has released new versions for several affected products and recommends to update to the latest versions. Siemens recommends specific countermeasures for products where fixes are not, or not yet available.", "title": "Summary" }, { "category": "general", "text": "As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: \nhttps://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals.\nAdditional information on Industrial Security by Siemens can be found at: 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": "The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/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": "Critical Manufacturing, Transportation Systems, Energy, Healthcare and Public Health, Financial Services, Government Services and Facilities", "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 these vulnerabilities.", "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-349422: Denial of Service Vulnerability in Industrial Real-Time (IRT) Devices - CSAF Version", "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-349422.json" }, { "category": "self", "summary": "SSA-349422: Denial of Service Vulnerability in Industrial Real-Time (IRT) Devices - HTML Version", "url": "https://cert-portal.siemens.com/productcert/html/ssa-349422.html" }, { "category": "self", "summary": "ICS Advisory ICSA-19-283-01 JSON", "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2019/icsa-19-283-01.json" }, { "category": "self", "summary": "ICS Advisory ICSA-19-283-01 - Web Version", "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-19-283-01" }, { "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 Industrial Real-Time (IRT) Devices", "tracking": { "current_release_date": "2025-05-06T06:00:00.000000Z", "generator": { "engine": { "name": "CISA CSAF Generator", "version": "1.0.0" } }, "id": "ICSA-19-283-01", "initial_release_date": "2019-10-08T00:00:00.000000Z", "revision_history": [ { "date": "2019-10-08T00:00:00.000000Z", "legacy_version": "1.0", "number": "1", "summary": "Publication Date" }, { "date": "2020-01-14T00:00:00.000000Z", "legacy_version": "1.1", "number": "2", "summary": "Added solution for SINAMICS SL150 V4.7, SIPLUS devices now explicitly mentioned in the list of affected products, correction in section \"Workarounds and Mitigations\"" }, { "date": "2020-02-11T00:00:00.000000Z", "legacy_version": "1.2", "number": "3", "summary": "Added solution for SINAMICS DCP" }, { "date": "2020-03-10T00:00:00.000000Z", "legacy_version": "1.3", "number": "4", "summary": "Added solution for SIMATIC S7-300 CPU family" }, { "date": "2020-08-11T00:00:00.000000Z", "legacy_version": "1.4", "number": "5", "summary": "Added SIMATIC ET200ecoPN product variants (MLFB IDs) that are not affected" }, { "date": "2021-02-09T00:00:00.000000Z", "legacy_version": "1.5", "number": "6", "summary": "Added additional SIMATIC ET200ecoPN model (6ES7148-6JG00-0BB0) as not affected" }, { "date": "2021-10-12T00:00:00.000000Z", "legacy_version": "1.6", "number": "7", "summary": "Clarified affected ET200ecoPN models" }, { "date": "2022-02-08T00:00:00.000000Z", "legacy_version": "1.7", "number": "8", "summary": "Clarified that no remediation is planned for ET200 devices" }, { "date": "2023-01-10T00:00:00.000000Z", "legacy_version": "1.8", "number": "9", "summary": "SIMATIC S7-300 CPU family expanded with product specific designations, patch links and MLFBs. Added fix for SINUMERIK 840D sl." }, { "date": "2023-04-11T00:00:00.000000Z", "legacy_version": "1.9", "number": "10", "summary": "SIMATIC S7-400 CPU family expanded and fix added for supported versions, no fix planned for other S7-400 versions" }, { "date": "2023-05-09T00:00:00.000000Z", "legacy_version": "2.0", "number": "11", "summary": "Removed SIMATIC S7-400 CPU devices without fix, as they do not support PROFINET and are not affected" }, { "date": "2024-09-10T00:00:00.000000Z", "legacy_version": "2.1", "number": "12", "summary": "Listed affected products individually instead of product families (e.g., for SIMATIC ET 200AL/MP/SP/pro IM families); added affected SIPLUS devices (e.g., SIPLUS ET 200xx IM)" }, { "date": "2025-02-11T00:00:00.000000Z", "legacy_version": "2.2", "number": "13", "summary": "Added fix for SINAMICS G150 and SINAMICS S150" }, { "date": "2025-05-06T06:00:00.000000Z", "legacy_version": "Revision", "number": "14", "summary": "Revision - Fixing typos" } ], "status": "final", "version": "14" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "