icsa-19-318-02
Vulnerability from csaf_cisa
Published
2019-11-14 00:00
Modified
2020-07-14 00:00
Summary
Siemens S7-1200 and S7-200 SMART CPUs (Update B)
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 expose additional diagnostic functionality to an attacker with physical access to the UART interface during boot process.
Critical infrastructure sectors
Chemical, Critical Manufacturing, Energy, Food and Agriculture, Water and Wastewater Systems
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:
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 onus-cert.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 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.
Recommended Practices
This vulnerability is not exploitable remotely; no known public exploits specifically target this vulnerability.
Additional Resources
For further inquiries on security vulnerabilities in Siemens products and
solutions, please contact the Siemens ProductCERT:
https://www.siemens.com/cert/advisories
Additional Resources
For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories
{ "document": { "acknowledgments": [ { "names": [ "Ali Abbasi" ], "organization": "Ruhr University of Bochum", "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-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 expose additional diagnostic functionality to an attacker with physical access to the UART interface during boot process.", "title": "Risk evaluation" }, { "category": "other", "text": "Chemical, Critical Manufacturing, Energy, Food and Agriculture, Water and Wastewater Systems", "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:", "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 onus-cert.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 us-cert.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": "This vulnerability is not exploitable remotely; no known public exploits specifically target this vulnerability.", "title": "Recommended Practices" }, { "category": "general", "text": "For further inquiries on security vulnerabilities in Siemens products and \nsolutions, please contact the Siemens ProductCERT:\n\nhttps://www.siemens.com/cert/advisories", "title": "Additional Resources" }, { "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" } ], "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": "self", "summary": "ICS Advisory ICSA-19-318-02 JSON", "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2019/icsa-19-318-02.json" }, { "category": "self", "summary": "ICS Advisory ICSA-19-318-02 Web Version", "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-19-318-02" }, { "category": "external", "summary": "Recommended Practices", "url": "https://www.us-cert.gov/ics/alerts/ICS-ALERT-10-301-01" }, { "category": "external", "summary": "Recommended Practices", "url": "https://www.us-cert.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf" }, { "category": "external", "summary": "Recommended Practices", "url": "https://www.us-cert.gov/ics/tips/ICS-TIP-12-146-01B" }, { "category": "external", "summary": "SSA-496604: SSA-686531: Hardware based manufacturing access on S7-1200 and S7-200 SMART - TXT Version", "url": "https://cert-portal.siemens.com/productcert/txt/SSA-686531.txt" } ], "title": "Siemens S7-1200 and S7-200 SMART CPUs (Update B)", "tracking": { "current_release_date": "2020-07-14T00:00:00.000000Z", "generator": { "engine": { "name": "CISA CSAF Generator", "version": "1.0.0" } }, "id": "ICSA-19-318-02", "initial_release_date": "2019-11-14T00:00:00.000000Z", "revision_history": [ { "date": "2019-11-14T00:00:00.000000Z", "legacy_version": "Initial", "number": "1", "summary": "ICSA-19-318-02 Siemens S7-1200 CPU" }, { "date": "2019-12-10T00:00:00.000000Z", "legacy_version": "A", "number": "2", "summary": "ICSA-19-318-02 Siemens S7-1200 and S7-200 SMART CPUs (Update A)" }, { "date": "2020-07-14T00:00:00.000000Z", "legacy_version": "B", "number": "3", "summary": "ICSA-19-318-02 Siemens S7-1200 and S7-200 SMART CPUs (Update B)" } ], "status": "final", "version": "3" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "All versions with Function State (FS) \u003c 11", "product": { "name": "SIMATIC S7-1200 CPU family V4.x (incl.\u00a0SIPLUS variants): All versions with Function State (FS) \u003c 11", "product_id": "CSAFPID-0001" } } ], "category": "product_name", "name": "SIMATIC S7-1200 CPU family V4.x (incl.\u00a0SIPLUS variants)" }, { "branches": [ { "category": "product_version_range", "name": "All versions", "product": { "name": "SIMATIC S7-1200 CPU family \u003c V4.x (incl.\u00a0SIPLUS variants): All versions", "product_id": "CSAFPID-0002" } } ], "category": "product_name", "name": "SIMATIC S7-1200 CPU family \u003c V4.x (incl.\u00a0SIPLUS variants)" }, { "branches": [ { "category": "product_version_range", "name": "All versions \u003c= V2.5.0 and Function State (FS) \u003c= 9", "product": { "name": "SIMATIC S7-200 SMART CPU ST20 (6ES7 288-1ST20-0AA0): All versions \u003c= V2.5.0 and Function State (FS) \u003c= 9", "product_id": "CSAFPID-0003" } } ], "category": "product_name", "name": "SIMATIC S7-200 SMART CPU ST20 (6ES7 288-1ST20-0AA0)" }, { "branches": [ { "category": "product_version_range", "name": "All versions \u003c= V2.5.0 and Function State (FS) \u003c= 9", "product": { "name": "SIMATIC S7-200 SMART CPU ST30 (6ES7 288-1ST30-0AA0): All versions \u003c= V2.5.0 and Function State (FS) \u003c= 9", "product_id": "CSAFPID-0004" } } ], "category": "product_name", "name": "SIMATIC S7-200 SMART CPU ST30 (6ES7 288-1ST30-0AA0)" }, { "branches": [ { "category": "product_version_range", "name": "All versions \u003c= V2.5.0 and Function State (FS) \u003c= 8", "product": { "name": "SIMATIC S7-200 SMART CPU ST40 (6ES7 288-1ST40-0AA0): All versions \u003c= V2.5.0 and Function State (FS) \u003c= 8", "product_id": "CSAFPID-0005" } } ], "category": "product_name", "name": "SIMATIC S7-200 SMART CPU ST40 (6ES7 288-1ST40-0AA0)" }, { "branches": [ { "category": "product_version_range", "name": "All versions \u003c= V2.5.0 and Function State (FS) \u003c= 8", "product": { "name": "SIMATIC S7-200 SMART CPU ST60 (6ES7 288-1ST60-0AA0): All versions \u003c= V2.5.0 and Function State (FS) \u003c= 8", "product_id": "CSAFPID-0006" } } ], "category": "product_name", "name": "SIMATIC S7-200 SMART CPU ST60 (6ES7 288-1ST60-0AA0)" }, { "branches": [ { "category": "product_version_range", "name": "All versions \u003c= V2.5.0 and Function State (FS) \u003c= 11", "product": { "name": "SIMATIC S7-200 SMART CPU SR20 (6ES7 288-1SR20-0AA0): All versions \u003c= V2.5.0 and Function State (FS) \u003c= 11", "product_id": "CSAFPID-0007" } } ], "category": "product_name", "name": "SIMATIC S7-200 SMART CPU SR20 (6ES7 288-1SR20-0AA0)" }, { "branches": [ { "category": "product_version_range", "name": "All versions \u003c= V2.5.0 and Function State (FS) \u003c= 10", "product": { "name": "SIMATIC S7-200 SMART CPU SR30 (6ES7 288-1SR30-0AA0): All versions \u003c= V2.5.0 and Function State (FS) \u003c= 10", "product_id": "CSAFPID-0008" } } ], "category": "product_name", "name": "SIMATIC S7-200 SMART CPU SR30 (6ES7 288-1SR30-0AA0)" }, { "branches": [ { "category": "product_version_range", "name": "All versions \u003c= V2.5.0 and Function State (FS) \u003c= 10", "product": { "name": "SIMATIC S7-200 SMART CPU SR40 (6ES7 288-1SR40-0AA0): All versions \u003c= V2.5.0 and Function State (FS) \u003c= 10", "product_id": "CSAFPID-0009" } } ], "category": "product_name", "name": "SIMATIC S7-200 SMART CPU SR40 (6ES7 288-1SR40-0AA0)" }, { "branches": [ { "category": "product_version_range", "name": "All versions \u003c= V2.5.0 and Function State (FS) \u003c= 12", "product": { "name": "SIMATIC S7-200 SMART CPU SR60 (6ES7 288-1SR60-0AA0): All versions \u003c= V2.5.0 and Function State (FS) \u003c= 12", "product_id": "CSAFPID-00010" } } ], "category": "product_name", "name": "SIMATIC S7-200 SMART CPU SR60 (6ES7 288-1SR60-0AA0)" }, { "branches": [ { "category": "product_version_range", "name": "All versions \u003c= V2.2.2 and Function State (FS) \u003c= 8", "product": { "name": "SIMATIC S7-200 SMART CPU CR40 (6ES7 288-1CR40-0AA0): All versions \u003c= V2.2.2 and Function State (FS) \u003c= 8", "product_id": "CSAFPID-00011" } } ], "category": "product_name", "name": "SIMATIC S7-200 SMART CPU CR40 (6ES7 288-1CR40-0AA0)" }, { "branches": [ { "category": "product_version_range", "name": "All versions \u003c= V2.2.2 and Function State (FS) \u003c= 10", "product": { "name": "SIMATIC S7-200 SMART CPU CR60 (6ES7 288-1CR60-0AA0): All versions \u003c= V2.2.2 and Function State (FS) \u003c= 10", "product_id": "CSAFPID-00012" } } ], "category": "product_name", "name": "SIMATIC S7-200 SMART CPU CR60 (6ES7 288-1CR60-0AA0)" }, { "branches": [ { "category": "product_version_range", "name": "All versions \u003c= V2.3.0 and Function State (FS) \u003c= 3", "product": { "name": "SIMATIC S7-200 SMART CPU CR20s (6ES7 288-1CR20-0AA1): All versions \u003c= V2.3.0 and Function State (FS) \u003c= 3", "product_id": "CSAFPID-00013" } } ], "category": "product_name", "name": "SIMATIC S7-200 SMART CPU CR20s (6ES7 288-1CR20-0AA1)" }, { "branches": [ { "category": "product_version_range", "name": "All versions \u003c= V2.3.0 and Function State (FS) \u003c= 3", "product": { "name": "SIMATIC S7-200 SMART CPU CR30s (6ES7 288-1CR30-0AA1): All versions \u003c= V2.3.0 and Function State (FS) \u003c= 3", "product_id": "CSAFPID-00014" } } ], "category": "product_name", "name": "SIMATIC S7-200 SMART CPU CR30s (6ES7 288-1CR30-0AA1)" }, { "branches": [ { "category": "product_version_range", "name": "All versions \u003c= V2.3.0 and Function State (FS) \u003c= 3", "product": { "name": "SIMATIC S7-200 SMART CPU CR40s (6ES7 288-1CR40-0AA1): All versions \u003c= V2.3.0 and Function State (FS) \u003c= 3", "product_id": "CSAFPID-00015" } } ], "category": "product_name", "name": "SIMATIC S7-200 SMART CPU CR40s (6ES7 288-1CR40-0AA1)" }, { "branches": [ { "category": "product_version_range", "name": "All versions \u003c= V2.3.0 and Function State (FS) \u003c= 3", "product": { "name": "SIMATIC S7-200 SMART CPU CR60s (6ES7 288-1CR60-0AA1): All versions \u003c= V2.3.0 and Function State (FS) \u003c= 3", "product_id": "CSAFPID-00016" } } ], "category": "product_name", "name": "SIMATIC S7-200 SMART CPU CR60s (6ES7 288-1CR60-0AA1)" } ], "category": "vendor", "name": "Siemens" } ] }, "vulnerabilities": [ { "cve": "CVE-2019-13945", "cwe": { "id": "CWE-749", "name": "Exposed Dangerous Method or Function" }, "notes": [ { "category": "summary", "text": "There is an access mode used during manufacturing of the affected devices that allows additional diagnostic functionality.", "title": "Summary" }, { "category": "summary", "text": "The security vulnerability could be exploited by an attacker with physical access to the UART interface during boot process.", "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" ] }, "references": [ { "category": "external", "summary": "web.nvd.nist.gov", "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-13945" }, { "category": "external", "summary": "www.first.org", "url": "https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H" } ], "remediations": [ { "category": "vendor_fix", "details": "Ensure physical access protection", "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" ] }, { "category": "vendor_fix", "details": "Apply Defense-in-Depth:\nhttps://www.siemens.com/cert/operational-guidelines-industrial-security", "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" ] }, { "category": "vendor_fix", "details": "Update to version \u003e= V4.4.1 and Function State (FS) \u003e= 11 ", "product_ids": [ "CSAFPID-0001" ] }, { "category": "vendor_fix", "details": "Firmware versions less than V4.x cannot be updated. For remediation see the recommendations from section \"Workarounds and Mitigations\". ", "product_ids": [ "CSAFPID-0002" ] }, { "category": "vendor_fix", "details": "Update to version \u003e= V2.5.1 and the latest boot loader version ", "product_ids": [ "CSAFPID-0003" ] }, { "category": "vendor_fix", "details": "Update to version \u003e= V2.5.1 and the latest boot loader version ", "product_ids": [ "CSAFPID-0004" ] }, { "category": "vendor_fix", "details": "Update to version \u003e= V2.5.1 and the latest boot loader version ", "product_ids": [ "CSAFPID-0005" ] }, { "category": "vendor_fix", "details": "Update to version \u003e= V2.5.1 and the latest boot loader version ", "product_ids": [ "CSAFPID-0006" ] }, { "category": "vendor_fix", "details": "Update to version \u003e= V2.5.1 and the latest boot loader version ", "product_ids": [ "CSAFPID-0007" ] }, { "category": "vendor_fix", "details": "Update to version \u003e= V2.5.1 and the latest boot loader version ", "product_ids": [ "CSAFPID-0008" ] }, { "category": "vendor_fix", "details": "Update to version \u003e= V2.5.1 and the latest boot loader version ", "product_ids": [ "CSAFPID-0009" ] }, { "category": "vendor_fix", "details": "Update to version \u003e= V2.5.1 and the latest boot loader version ", "product_ids": [ "CSAFPID-00010" ] }, { "category": "vendor_fix", "details": "Update to version \u003e= V2.2.3 and the latest boot loader version ", "product_ids": [ "CSAFPID-00011" ] }, { "category": "vendor_fix", "details": "Update to version \u003e= V2.2.3 and the latest boot loader version ", "product_ids": [ "CSAFPID-00012" ] }, { "category": "vendor_fix", "details": "Update to version \u003e= V2.3.0 and the latest boot loader version Note that the firmware version currently remains at V2.3.0, only the boot loader is updated. ", "product_ids": [ "CSAFPID-00013" ] }, { "category": "vendor_fix", "details": "Update to version \u003e= V2.3.0 and the latest boot loader version Note that the firmware version currently remains at V2.3.0, only the boot loader is updated. ", "product_ids": [ "CSAFPID-00014" ] }, { "category": "vendor_fix", "details": "Update to version \u003e= V2.3.0 and the latest boot loader version Note that the firmware version currently remains at V2.3.0, only the boot loader is updated. ", "product_ids": [ "CSAFPID-00015" ] }, { "category": "vendor_fix", "details": "Update to version \u003e= V2.3.0 and the latest boot loader version Note that the firmware version currently remains at V2.3.0, only the boot loader is updated. ", "product_ids": [ "CSAFPID-00016" ] }, { "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: https://www.siemens.com/cert/operational-guidelines-industrial-security), and to follow the recommendations in the product manuals. Additional 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" ] } ], "scores": [ { "cvss_v3": { "baseScore": 6.8, "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/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" ] } ] } ] }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- 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.