ICSA-20-343-08
Vulnerability from csaf_cisa
Published
2020-12-08 00:00
Modified
2021-05-11 00:00
Summary
Siemens Products using TightVNC (Update A)
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
All products listed in the original advisory associated with ICSA-20-343-08 Siemens Products using TightVNC are unaffected by TightVNC vulnerabilities.
Critical infrastructure sectors
Chemical, Critical Manufacturing, Energy, Food and Agriculture, Water and Wastewater Systems
Countries/areas deployed
Worldwide
Company headquarters location
Germany
Recommended Practices
ISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. 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.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 us-cert.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
{ "document": { "acknowledgments": [ { "organization": "Siemens", "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-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": "All products listed in the original advisory associated with ICSA-20-343-08 Siemens Products using TightVNC are unaffected by TightVNC vulnerabilities.", "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": "ISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. 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.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 us-cert.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" } ], "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-478893: TightVNC Vulnerabilities in Industrial Products (Revoked) - CSAF Version", "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-478893.json" }, { "category": "self", "summary": "ICS Advisory ICSA-20-343-08 JSON", "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2020/icsa-20-343-08.json" }, { "category": "self", "summary": "ICS Advisory ICSA-20-343-08 Web Version", "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-20-343-08" }, { "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://us-cert.cisa.gov/ics/tips/ICS-TIP-12-146-01B" }, { "category": "external", "summary": "SSA-478893: TightVNC Vulnerabilities in Industrial Products (Revoked) - PDF Version", "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-478893.pdf" }, { "category": "external", "summary": "SSA-478893: TightVNC Vulnerabilities in Industrial Products (Revoked) - TXT Version", "url": "https://cert-portal.siemens.com/productcert/txt/ssa-478893.txt" } ], "title": "Siemens Products using TightVNC (Update A)", "tracking": { "current_release_date": "2021-05-11T00:00:00.000000Z", "generator": { "engine": { "name": "CISA CSAF Generator", "version": "1.0.0" } }, "id": "ICSA-20-343-08", "initial_release_date": "2020-12-08T00:00:00.000000Z", "revision_history": [ { "date": "2020-12-08T00:00:00.000000Z", "legacy_version": "Initial", "number": "1", "summary": "ICSA-20-343-08 Siemens Products using TightVNC" }, { "date": "2021-05-11T00:00:00.000000Z", "legacy_version": "A", "number": "2", "summary": "ICSA-20-343-08 Siemens Products using TightVNC (Update A)" } ], "status": "final", "version": "2" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "No version", "product": { "name": "SIMATIC HMI Comfort Outdoor Panels 7\" \u0026 15\" (incl. SIPLUS variants)", "product_id": "CSAFPID-0001" } } ], "category": "product_name", "name": "SIMATIC HMI Comfort Outdoor Panels 7\" \u0026 15\" (incl. SIPLUS variants)" }, { "branches": [ { "category": "product_version_range", "name": "No version", "product": { "name": "SIMATIC HMI Comfort Panels 4\" - 22\" (incl. SIPLUS variants)", "product_id": "CSAFPID-0002" } } ], "category": "product_name", "name": "SIMATIC HMI Comfort Panels 4\" - 22\" (incl. SIPLUS variants)" }, { "branches": [ { "category": "product_version_range", "name": "No version", "product": { "name": "SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900F", "product_id": "CSAFPID-0003" } } ], "category": "product_name", "name": "SIMATIC HMI KTP Mobile Panels KTP400F, KTP700, KTP700F, KTP900 and KTP900F" }, { "branches": [ { "category": "product_version_range", "name": "No version", "product": { "name": "SIMATIC ITC1500 V3.1", "product_id": "CSAFPID-0004" } } ], "category": "product_name", "name": "SIMATIC ITC1500 V3.1" }, { "branches": [ { "category": "product_version_range", "name": "No version", "product": { "name": "SIMATIC ITC1500 V3.1 PRO", "product_id": "CSAFPID-0005" } } ], "category": "product_name", "name": "SIMATIC ITC1500 V3.1 PRO" }, { "branches": [ { "category": "product_version_range", "name": "No version", "product": { "name": "SIMATIC ITC1900 V3.1", "product_id": "CSAFPID-0006" } } ], "category": "product_name", "name": "SIMATIC ITC1900 V3.1" }, { "branches": [ { "category": "product_version_range", "name": "No version", "product": { "name": "SIMATIC ITC1900 V3.1 PRO", "product_id": "CSAFPID-0007" } } ], "category": "product_name", "name": "SIMATIC ITC1900 V3.1 PRO" }, { "branches": [ { "category": "product_version_range", "name": "No version", "product": { "name": "SIMATIC ITC2200 V3.1", "product_id": "CSAFPID-0008" } } ], "category": "product_name", "name": "SIMATIC ITC2200 V3.1" }, { "branches": [ { "category": "product_version_range", "name": "No version", "product": { "name": "SIMATIC ITC2200 V3.1 PRO", "product_id": "CSAFPID-0009" } } ], "category": "product_name", "name": "SIMATIC ITC2200 V3.1 PRO" }, { "branches": [ { "category": "product_version_range", "name": "No version", "product": { "name": "SIMATIC WinCC Runtime Advanced", "product_id": "CSAFPID-00010" } } ], "category": "product_name", "name": "SIMATIC WinCC Runtime Advanced" }, { "branches": [ { "category": "product_version_range", "name": "No version", "product": { "name": "SIMATIC WinCC Runtime Professional", "product_id": "CSAFPID-00011" } } ], "category": "product_name", "name": "SIMATIC WinCC Runtime Professional" } ], "category": "vendor", "name": "Siemens" } ] }, "vulnerabilities": [ { "cve": "CVE-2019-8287", "cwe": { "id": "CWE-120", "name": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)" }, "notes": [ { "category": "summary", "text": "TightVNC code version 1.3.10 contains global buffer overflow in HandleCoRREBBP macro function, which can potentially result in code execution. This attack appear to be exploitable via network connectivity.", "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" ] }, "references": [ { "summary": "CVE-2019-8287 Mitre 5.0 json", "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2019-8287.json" }, { "category": "external", "summary": "web.nvd.nist.gov", "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-8287" }, { "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:H/I:H/A:H" } ], "remediations": [ { "category": "vendor_fix", "details": "This product is not affected by any vulnerability listed in this advisory", "product_ids": [ "CSAFPID-0001", "CSAFPID-0002", "CSAFPID-0003", "CSAFPID-0004", "CSAFPID-0005", "CSAFPID-0006", "CSAFPID-0007", "CSAFPID-0008", "CSAFPID-0009", "CSAFPID-00010", "CSAFPID-00011" ] }, { "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.\n\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" ] } ], "scores": [ { "cvss_v3": { "baseScore": 9.8, "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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" ] } ], "title": "CVE-2019-8287" }, { "cve": "CVE-2019-15678", "cwe": { "id": "CWE-122", "name": "Heap-based Buffer Overflow" }, "notes": [ { "category": "summary", "text": "TightVNC code version 1.3.10 contains heap buffer overflow in rfbServerCutText handler, which can potentially result in code execution. This attack appear to be exploitable via network connectivity.", "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" ] }, "references": [ { "summary": "CVE-2019-15678 Mitre 5.0 json", "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2019-15678.json" }, { "category": "external", "summary": "web.nvd.nist.gov", "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-15678" }, { "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:H/I:H/A:H" } ], "remediations": [ { "category": "vendor_fix", "details": "This product is not affected by any vulnerability listed in this advisory", "product_ids": [ "CSAFPID-0001", "CSAFPID-0002", "CSAFPID-0003", "CSAFPID-0004", "CSAFPID-0005", "CSAFPID-0006", "CSAFPID-0007", "CSAFPID-0008", "CSAFPID-0009", "CSAFPID-00010", "CSAFPID-00011" ] }, { "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.\n\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" ] } ], "scores": [ { "cvss_v3": { "baseScore": 9.8, "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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" ] } ], "title": "CVE-2019-15678" }, { "cve": "CVE-2019-15679", "cwe": { "id": "CWE-122", "name": "Heap-based Buffer Overflow" }, "notes": [ { "category": "summary", "text": "TightVNC code version 1.3.10 contains heap buffer overflow in InitialiseRFBConnection function, which can potentially result in code execution. This attack appear to be exploitable via network connectivity.", "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" ] }, "references": [ { "summary": "CVE-2019-15679 Mitre 5.0 json", "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2019-15679.json" }, { "category": "external", "summary": "web.nvd.nist.gov", "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-15679" }, { "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:H/I:H/A:H" } ], "remediations": [ { "category": "vendor_fix", "details": "This product is not affected by any vulnerability listed in this advisory", "product_ids": [ "CSAFPID-0001", "CSAFPID-0002", "CSAFPID-0003", "CSAFPID-0004", "CSAFPID-0005", "CSAFPID-0006", "CSAFPID-0007", "CSAFPID-0008", "CSAFPID-0009", "CSAFPID-00010", "CSAFPID-00011" ] }, { "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.\n\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" ] } ], "scores": [ { "cvss_v3": { "baseScore": 9.8, "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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" ] } ], "title": "CVE-2019-15679" }, { "cve": "CVE-2019-15680", "cwe": { "id": "CWE-476", "name": "NULL Pointer Dereference" }, "notes": [ { "category": "summary", "text": "TightVNC code version 1.3.10 contains null pointer dereference in HandleZlibBPP function, which could result in a Denial-of-Service (DoS). This attack appear to be exploitable via network connectivity.", "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" ] }, "references": [ { "summary": "CVE-2019-15680 Mitre 5.0 json", "url": "https://cert-portal.siemens.com/productcert/mitre/CVE-2019-15680.json" }, { "category": "external", "summary": "web.nvd.nist.gov", "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2019-15680" }, { "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": "vendor_fix", "details": "This product is not affected by any vulnerability listed in this advisory", "product_ids": [ "CSAFPID-0001", "CSAFPID-0002", "CSAFPID-0003", "CSAFPID-0004", "CSAFPID-0005", "CSAFPID-0006", "CSAFPID-0007", "CSAFPID-0008", "CSAFPID-0009", "CSAFPID-00010", "CSAFPID-00011" ] }, { "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.\n\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" ] } ], "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" ] } ], "title": "CVE-2019-15680" } ] }
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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.