{ "document": { "acknowledgments": [ { "organization": "Siemens ProductCERT", "summary": "reporting these vulnerabilities to CISA." } ], "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": "APOGEE PXC / TALON TC field panels (BACnet before V3.5.5 and P2 Ethernet before V2.8.20) contain multiple vulnerabilities:\n\n- CVE-2022-45937: A privilege management vulnerability that could allow low privilege authenticated attackers to gain high privilege access.\n- CVE-2020-28388: Predictable Initial Sequence Numbers in the TCP/IP Stack of Nucleus RTOS (real-time operating system) used by the affected products.\n- Several vulnerabilities in the DNS (domain name service) implementation of Nucleus RTOS.\n\nSiemens has released updates for the affected products and recommends to update to the latest versions.", "title": "Summary" }, { "category": "general", "text": "As a general security measure Siemens strongly recommends to protect network access to affected products with appropriate mechanisms. It is advised to follow recommended security practices in order to run the devices in a protected IT environment.", "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-180579: Privilege Management Vulnerability and Multiple Nucleus RTOS Vulnerabilities in APOGEE/TALON Field Panels before V3.5.5/V2.8.20 - CSAF Version", "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-180579.json" }, { "category": "self", "summary": "SSA-180579: Privilege Management Vulnerability and Multiple Nucleus RTOS Vulnerabilities in APOGEE/TALON Field Panels before V3.5.5/V2.8.20 - HTML Version", "url": "https://cert-portal.siemens.com/productcert/html/ssa-180579.html" }, { "category": "self", "summary": "SSA-180579: Privilege Management Vulnerability and Multiple Nucleus RTOS Vulnerabilities in APOGEE/TALON Field Panels before V3.5.5/V2.8.20 - PDF Version", "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-180579.pdf" }, { "category": "self", "summary": "SSA-180579: Privilege Management Vulnerability and Multiple Nucleus RTOS Vulnerabilities in APOGEE/TALON Field Panels before V3.5.5/V2.8.20 - TXT Version", "url": "https://cert-portal.siemens.com/productcert/txt/ssa-180579.txt" }, { "category": "self", "summary": "ICS Advisory ICSA-22-349-16 JSON", "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2022/icsa-22-349-16.json" }, { "category": "self", "summary": "ICS Advisory ICSA-22-349-16 - Web Version", "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-22-349-16" }, { "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 APOGEE and TALON", "tracking": { "current_release_date": "2025-05-06T06:00:00.000000Z", "generator": { "engine": { "name": "CISA CSAF Generator", "version": "1.0.0" } }, "id": "ICSA-22-349-16", "initial_release_date": "2022-12-13T00:00:00.000000Z", "revision_history": [ { "date": "2022-12-13T00:00:00.000000Z", "legacy_version": "1.0", "number": "1", "summary": "Publication Date" }, { "date": "2023-08-08T00:00:00.000000Z", "legacy_version": "1.1", "number": "2", "summary": "Added additional vulnerabilities that were fixed in the same product versions (V3.5.5 / V2.8.20)" }, { "date": "2025-05-06T06:00:00.000000Z", "legacy_version": "Revision", "number": "3", "summary": "Revision - Fixing typos" } ], "status": "final", "version": "3" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "