icsa-22-104-12
Vulnerability from csaf_cisa
Published
2022-04-14 00:00
Modified
2022-04-14 00:00
Summary
Siemens SIMATIC S7-400
Notes
CISA Disclaimer
This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov
Legal Notice
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/.
Risk evaluation
Successful exploitation of this vulnerability could allow an attacker to create a denial-of-service condition.
Critical infrastructure sectors
Multiple Sectors
Countries/areas deployed
Worldwide
Company headquarters location
Germany
Recommended Practices
CISA 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 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 VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as its connected devices.
Recommended Practices
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 cisa.gov. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
Recommended Practices
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage on cisa.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.
Additional Resources
For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories
Exploitability
No known public exploits specifically target this vulnerability.
{ "document": { "acknowledgments": [ { "organization": "Siemens", "summary": "reporting this vulnerability 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-US", "notes": [ { "category": "general", "text": "This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov", "title": "CISA Disclaimer" }, { "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": "summary", "text": "Successful exploitation of this vulnerability could allow an attacker to create a denial-of-service condition.", "title": "Risk evaluation" }, { "category": "other", "text": "Multiple Sectors", "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 risk of exploitation of this vulnerability. Specifically, users should: Minimize network exposure for all control system devices and/or systems, and ensure 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 VPNs may have vulnerabilities and should be updated to the most current 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.\nCISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.", "title": "Recommended Practices" }, { "category": "general", "text": "Additional mitigation guidance and recommended practices are publicly available on the ICS webpage on cisa.gov in the Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.\nOrganizations observing any suspected malicious activity should follow their established internal procedures and report their findings to CISA for tracking and correlation against other incidents.", "title": "Recommended Practices" }, { "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": "other", "text": "No known public exploits specifically target this vulnerability.", "title": "Exploitability" } ], "publisher": { "category": "coordinator", "contact_details": "Email: CISAservicedesk@cisa.dhs.gov;\n Toll Free: 1-888-282-0870", "name": "CISA", "namespace": "https://www.cisa.gov/" }, "references": [ { "category": "external", "summary": "SSA-557541: Denial-of-Service Vulnerability in SIMATIC S7-400 CPUs - CSAF Version", "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-557541.json" }, { "category": "self", "summary": "ICS Advisory ICSA-22-104-12 JSON", "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2022/icsa-22-104-12.json" }, { "category": "self", "summary": "ICS Advisory ICSA-22-104-12 Web Version", "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-22-104-12" }, { "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/uscert/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf" }, { "category": "external", "summary": "Recommended Practices", "url": "https://www.cisa.gov/uscert/ics/tips/ICS-TIP-12-146-01B" }, { "category": "external", "summary": "SSA-557541: Denial-of-Service Vulnerability in SIMATIC S7-400 CPUs - HTML Version", "url": "https://cert-portal.siemens.com/productcert/html/ssa-557541.html" }, { "category": "external", "summary": "SSA-557541: Denial-of-Service Vulnerability in SIMATIC S7-400 CPUs - PDF Version", "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-557541.pdf" }, { "category": "external", "summary": "SSA-557541: Denial-of-Service Vulnerability in SIMATIC S7-400 CPUs - TXT Version", "url": "https://cert-portal.siemens.com/productcert/txt/ssa-557541.txt" } ], "title": "Siemens SIMATIC S7-400", "tracking": { "current_release_date": "2022-04-14T00:00:00.000000Z", "generator": { "engine": { "name": "CISA CSAF Generator", "version": "1.0.0" } }, "id": "ICSA-22-104-12", "initial_release_date": "2022-04-14T00:00:00.000000Z", "revision_history": [ { "date": "2022-04-14T00:00:00.000000Z", "legacy_version": "Initial", "number": "1", "summary": "ICSA-22-104-12 Siemens SIMATIC S7-400" } ], "status": "final", "version": "1" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:all/*", "product": { "name": " SIMATIC S7-400 CPU 412-1 DP V7 (6ES7412-1XJ07-0AB0)", "product_id": "CSAFPID-0001", "product_identification_helper": { "model_numbers": [ "6ES7412-1XJ07-0AB0" ] } } } ], "category": "product_name", "name": " SIMATIC S7-400 CPU 412-1 DP V7 (6ES7412-1XJ07-0AB0)" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/*", "product": { "name": " SIMATIC S7-400 CPU 412-2 DP V7 (6ES7412-2XK07-0AB0)", "product_id": "CSAFPID-0002", "product_identification_helper": { "model_numbers": [ "6ES7412-2XK07-0AB0" ] } } } ], "category": "product_name", "name": " SIMATIC S7-400 CPU 412-2 DP V7 (6ES7412-2XK07-0AB0)" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/\u003cV7.0.3", "product": { "name": " SIMATIC S7-400 CPU 412-2 PN/DP V7 (6ES7412-2EK07-0AB0)", "product_id": "CSAFPID-0003", "product_identification_helper": { "model_numbers": [ "6ES7412-2EK07-0AB0" ] } } } ], "category": "product_name", "name": " SIMATIC S7-400 CPU 412-2 PN/DP V7 (6ES7412-2EK07-0AB0)" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/*", "product": { "name": " SIMATIC S7-400 CPU 414-2 DP V7 (6ES7414-2XL07-0AB0)", "product_id": "CSAFPID-0004", "product_identification_helper": { "model_numbers": [ "6ES7414-2XL07-0AB0" ] } } } ], "category": "product_name", "name": " SIMATIC S7-400 CPU 414-2 DP V7 (6ES7414-2XL07-0AB0)" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/*", "product": { "name": " SIMATIC S7-400 CPU 414-3 DP V7 (6ES7414-3XM07-0AB0)", "product_id": "CSAFPID-0005", "product_identification_helper": { "model_numbers": [ "6ES7414-3XM07-0AB0" ] } } } ], "category": "product_name", "name": " SIMATIC S7-400 CPU 414-3 DP V7 (6ES7414-3XM07-0AB0)" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/\u003cV7.0.3", "product": { "name": " SIMATIC S7-400 CPU 414-3 PN/DP V7 (6ES7414-3EM07-0AB0)", "product_id": "CSAFPID-0006", "product_identification_helper": { "model_numbers": [ "6ES7414-3EM07-0AB0" ] } } } ], "category": "product_name", "name": " SIMATIC S7-400 CPU 414-3 PN/DP V7 (6ES7414-3EM07-0AB0)" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/\u003cV7.0.3", "product": { "name": " SIMATIC S7-400 CPU 414F-3 PN/DP V7 (6ES7414-3FM07-0AB0)", "product_id": "CSAFPID-0007", "product_identification_helper": { "model_numbers": [ "6ES7414-3FM07-0AB0" ] } } } ], "category": "product_name", "name": " SIMATIC S7-400 CPU 414F-3 PN/DP V7 (6ES7414-3FM07-0AB0)" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/*", "product": { "name": " SIMATIC S7-400 CPU 416-2 DP V7 (6ES7416-2XP07-0AB0)", "product_id": "CSAFPID-0008", "product_identification_helper": { "model_numbers": [ "6ES7416-2XP07-0AB0" ] } } } ], "category": "product_name", "name": " SIMATIC S7-400 CPU 416-2 DP V7 (6ES7416-2XP07-0AB0)" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/*", "product": { "name": " SIMATIC S7-400 CPU 416-3 DP V7 (6ES7416-3XS07-0AB0)", "product_id": "CSAFPID-0009", "product_identification_helper": { "model_numbers": [ "6ES7416-3XS07-0AB0" ] } } } ], "category": "product_name", "name": " SIMATIC S7-400 CPU 416-3 DP V7 (6ES7416-3XS07-0AB0)" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/\u003cV7.0.3", "product": { "name": " SIMATIC S7-400 CPU 416-3 PN/DP V7 (6ES7416-3ES07-0AB0)", "product_id": "CSAFPID-00010", "product_identification_helper": { "model_numbers": [ "6ES7416-3ES07-0AB0" ] } } } ], "category": "product_name", "name": " SIMATIC S7-400 CPU 416-3 PN/DP V7 (6ES7416-3ES07-0AB0)" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/*", "product": { "name": " SIMATIC S7-400 CPU 416F-2 DP V7 (6ES7416-2FP07-0AB0)", "product_id": "CSAFPID-00011", "product_identification_helper": { "model_numbers": [ "6ES7416-2FP07-0AB0" ] } } } ], "category": "product_name", "name": " SIMATIC S7-400 CPU 416F-2 DP V7 (6ES7416-2FP07-0AB0)" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/\u003cV7.0.3", "product": { "name": " SIMATIC S7-400 CPU 416F-3 PN/DP V7 (6ES7416-3FS07-0AB0)", "product_id": "CSAFPID-00012", "product_identification_helper": { "model_numbers": [ "6ES7416-3FS07-0AB0" ] } } } ], "category": "product_name", "name": " SIMATIC S7-400 CPU 416F-3 PN/DP V7 (6ES7416-3FS07-0AB0)" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/*", "product": { "name": " SIMATIC S7-400 CPU 417-4 DP V7 (6ES7417-4XT07-0AB0)", "product_id": "CSAFPID-00013", "product_identification_helper": { "model_numbers": [ "6ES7417-4XT07-0AB0" ] } } } ], "category": "product_name", "name": " SIMATIC S7-400 CPU 417-4 DP V7 (6ES7417-4XT07-0AB0)" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/\u003cV6.0.10", "product": { "name": "SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants)", "product_id": "CSAFPID-00014" } } ], "category": "product_name", "name": "SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants)" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/\u003cV10.1", "product": { "name": "SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants)", "product_id": "CSAFPID-00015" } } ], "category": "product_name", "name": "SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants)" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/\u003cV8.2.3", "product": { "name": "SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants)", "product_id": "CSAFPID-00016" } } ], "category": "product_name", "name": "SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants)" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/\u003cV7.0.3", "product": { "name": "SIPLUS S7-400 CPU 414-3 PN/DP V7 (6AG1414-3EM07-7AB0)", "product_id": "CSAFPID-00017", "product_identification_helper": { "model_numbers": [ "6AG1414-3EM07-7AB0" ] } } } ], "category": "product_name", "name": "SIPLUS S7-400 CPU 414-3 PN/DP V7 (6AG1414-3EM07-7AB0)" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/\u003cV7.0.3", "product": { "name": "SIPLUS S7-400 CPU 416-3 PN/DP V7 (6AG1416-3ES07-7AB0)", "product_id": "CSAFPID-00018", "product_identification_helper": { "model_numbers": [ "6AG1416-3ES07-7AB0" ] } } } ], "category": "product_name", "name": "SIPLUS S7-400 CPU 416-3 PN/DP V7 (6AG1416-3ES07-7AB0)" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/*", "product": { "name": "SIPLUS S7-400 CPU 416-3 V7 (6AG1416-3XS07-7AB0)", "product_id": "CSAFPID-00019", "product_identification_helper": { "model_numbers": [ "6AG1416-3XS07-7AB0" ] } } } ], "category": "product_name", "name": "SIPLUS S7-400 CPU 416-3 V7 (6AG1416-3XS07-7AB0)" }, { "branches": [ { "category": "product_version_range", "name": "vers:all/*", "product": { "name": "SIPLUS S7-400 CPU 417-4 V7 (6AG1417-4XT07-7AB0)", "product_id": "CSAFPID-00020", "product_identification_helper": { "model_numbers": [ "6AG1417-4XT07-7AB0" ] } } } ], "category": "product_name", "name": "SIPLUS S7-400 CPU 417-4 V7 (6AG1417-4XT07-7AB0)" } ], "category": "vendor", "name": "Siemens" } ] }, "vulnerabilities": [ { "cve": "CVE-2021-40368", "cwe": { "id": "CWE-119", "name": "Improper Restriction of Operations within the Bounds of a Memory Buffer" }, "notes": [ { "category": "summary", "text": "Affected devices improperly handle specially crafted packets sent to port 102/tcp.\n\nThis could allow an attacker to create a Denial-of-Service condition. A restart is needed to restore normal operations. CVE-2021-40368 has been assigned to this vulnerability. A CVSS v3 base score of 7.5 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).", "title": "Summary" } ], "product_status": { "known_affected": [ "CSAFPID-0001", "CSAFPID-0002", "CSAFPID-0003", "CSAFPID-0004", "CSAFPID-0005", "CSAFPID-0006", "CSAFPID-0007", "CSAFPID-0008", "CSAFPID-0009", "CSAFPID-00010", "CSAFPID-00011", "CSAFPID-00012", "CSAFPID-00013", "CSAFPID-00014", "CSAFPID-00015", "CSAFPID-00016", "CSAFPID-00017", "CSAFPID-00018", "CSAFPID-00019", "CSAFPID-00020" ] }, "references": [ { "category": "external", "summary": "web.nvd.nist.gov", "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-40368" }, { "category": "external", "summary": "www.first.org", "url": "https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" } ], "remediations": [ { "category": "mitigation", "details": "Limit access to port 102/tcp to trusted users and systems only", "product_ids": [ "CSAFPID-0001", "CSAFPID-0002", "CSAFPID-0003", "CSAFPID-0004", "CSAFPID-0005", "CSAFPID-0006", "CSAFPID-0007", "CSAFPID-0008", "CSAFPID-0009", "CSAFPID-00010", "CSAFPID-00011", "CSAFPID-00012", "CSAFPID-00013", "CSAFPID-00014", "CSAFPID-00015", "CSAFPID-00016", "CSAFPID-00017", "CSAFPID-00018", "CSAFPID-00019", "CSAFPID-00020" ] }, { "category": "no_fix_planned", "details": "Currently no fix is planned", "product_ids": [ "CSAFPID-0001", "CSAFPID-0002", "CSAFPID-0004", "CSAFPID-0005", "CSAFPID-0008", "CSAFPID-0009", "CSAFPID-00011", "CSAFPID-00013", "CSAFPID-00019", "CSAFPID-00020" ] }, { "category": "vendor_fix", "details": "Update to V6.0.10 or later version", "product_ids": [ "CSAFPID-00014" ], "url": "https://support.industry.siemens.com/cs/ww/en/view/109474550/" }, { "category": "vendor_fix", "details": "Update to V7.0.3 or later version", "product_ids": [ "CSAFPID-0003", "CSAFPID-0006", "CSAFPID-0007", "CSAFPID-00010", "CSAFPID-00012", "CSAFPID-00017", "CSAFPID-00018" ], "url": "https://support.industry.siemens.com/cs/ww/en/view/109752685/" }, { "category": "vendor_fix", "details": "Update to V8.2.3 or later version", "product_ids": [ "CSAFPID-00016" ], "url": "https://support.industry.siemens.com/cs/ww/en/view/109476571/" }, { "category": "vendor_fix", "details": "Update to V10.1 or later version\nTo obtain SIMATIC S7-410 V10.1 contact your local support.", "product_ids": [ "CSAFPID-00015" ] }, { "category": "mitigation", "details": "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\u0027 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", "product_ids": [ "CSAFPID-0001", "CSAFPID-0002", "CSAFPID-0003", "CSAFPID-0004", "CSAFPID-0005", "CSAFPID-0006", "CSAFPID-0007", "CSAFPID-0008", "CSAFPID-0009", "CSAFPID-00010", "CSAFPID-00011", "CSAFPID-00012", "CSAFPID-00013", "CSAFPID-00014", "CSAFPID-00015", "CSAFPID-00016", "CSAFPID-00017", "CSAFPID-00018", "CSAFPID-00019", "CSAFPID-00020" ] } ], "scores": [ { "cvss_v3": { "baseScore": 7.5, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C", "version": "3.1" }, "products": [ "CSAFPID-0001", "CSAFPID-0002", "CSAFPID-0003", "CSAFPID-0004", "CSAFPID-0005", "CSAFPID-0006", "CSAFPID-0007", "CSAFPID-0008", "CSAFPID-0009", "CSAFPID-00010", "CSAFPID-00011", "CSAFPID-00012", "CSAFPID-00013", "CSAFPID-00014", "CSAFPID-00015", "CSAFPID-00016", "CSAFPID-00017", "CSAFPID-00018", "CSAFPID-00019", "CSAFPID-00020" ] } ], "title": "CVE-2021-40368" } ] }
Loading...
Loading...
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.