icsa-21-194-07
Vulnerability from csaf_cisa
Published
2021-07-13 00:00
Modified
2022-08-18 00:00
Summary
Siemens Industrial Products LLDP (Update D)

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 these vulnerabilities could allow an attacker to cause a denial-of-service condition or execute arbitrary code.
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 on cisa.gov/icsSeveral 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/icsin 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 these vulnerabilities.


To clipboard 

{
  "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": {
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        "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 these vulnerabilities could allow an attacker to cause a denial-of-service condition or execute arbitrary code.",
        "title": "Risk evaluation"
      },
      {
        "category": "other",
        "text": "Chemical, Critical Manufacturing, Energy, Food and Agriculture,\n\tWater 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 on cisa.gov/icsSeveral 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/icsin 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 these vulnerabilities.",
        "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-941426: Multiple LLDP Vulnerabilities in Industrial Products - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-941426.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-21-194-07 JSON",
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2021/icsa-21-194-07.json"
      },
      {
        "category": "self",
        "summary": "ICS Advisory ICSA-21-194-07 Web Version",
        "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-21-194-07"
      },
      {
        "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-941426: Multiple LLDP Vulnerabilities in Industrial Products - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-941426.pdf"
      },
      {
        "category": "external",
        "summary": "SSA-941426: Multiple LLDP Vulnerabilities in Industrial Products - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-941426.txt"
      }
    ],
    "title": "Siemens Industrial Products LLDP (Update D)",
    "tracking": {
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          }
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        "category": "vendor",
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      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2015-8011",
      "cwe": {
        "id": "CWE-120",
        "name": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Buffer overflow in the lldp_decode function in daemon/protocols/lldp.c in lldpd before 0.8.0 allows remote attackers to cause a denial of service (daemon crash) and possibly execute arbitrary code via vectors involving large management addresses and TLV boundaries.",
          "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"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-8011"
        },
        {
          "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": "mitigation",
          "details": "Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.",
          "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"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V2.2.28 or later version",
          "product_ids": [
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0006",
            "CSAFPID-00010",
            "CSAFPID-00011",
            "CSAFPID-00012"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109817067/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V17 or later version",
          "product_ids": [
            "CSAFPID-0008"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109746530"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V2.0.1 or later version\nPlease contact your Siemens representative for information on how to obtain the update.",
          "product_ids": [
            "CSAFPID-0009"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V3.3.46 or later version",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-00014",
            "CSAFPID-00015"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109812218"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V1.1 or later version",
          "product_ids": [
            "CSAFPID-0007"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109811116/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V3.0 or later version",
          "product_ids": [
            "CSAFPID-0005",
            "CSAFPID-00013"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109800773/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V2.2 or later version",
          "product_ids": [
            "CSAFPID-00016",
            "CSAFPID-00017"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109798331/"
        },
        {
          "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"
          ]
        }
      ],
      "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:U/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"
          ]
        }
      ],
      "title": "CVE-2015-8011"
    },
    {
      "cve": "CVE-2020-27827",
      "cwe": {
        "id": "CWE-400",
        "name": "Uncontrolled Resource Consumption"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Specially crafted LLDP packets can cause memory to be lost when allocating data to handle specific optional TLVs, potentially causing a denial of service.",
          "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"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "web.nvd.nist.gov",
          "url": "http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2020-27827"
        },
        {
          "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": "Disable LLDP protocol support on Ethernet port. This will potentially disrupt the network visibility.",
          "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"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V2.2.28 or later version",
          "product_ids": [
            "CSAFPID-0003",
            "CSAFPID-0004",
            "CSAFPID-0006",
            "CSAFPID-00010",
            "CSAFPID-00011",
            "CSAFPID-00012"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109817067/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V17 or later version",
          "product_ids": [
            "CSAFPID-0008"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109746530"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V2.0.1 or later version\nPlease contact your Siemens representative for information on how to obtain the update.",
          "product_ids": [
            "CSAFPID-0009"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V3.3.46 or later version",
          "product_ids": [
            "CSAFPID-0001",
            "CSAFPID-0002",
            "CSAFPID-00014",
            "CSAFPID-00015"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109812218"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V1.1 or later version",
          "product_ids": [
            "CSAFPID-0007"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109811116/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V3.0 or later version",
          "product_ids": [
            "CSAFPID-0005",
            "CSAFPID-00013"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109800773/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V2.2 or later version",
          "product_ids": [
            "CSAFPID-00016",
            "CSAFPID-00017"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109798331/"
        },
        {
          "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"
          ]
        }
      ],
      "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"
          ]
        }
      ],
      "title": "CVE-2020-27827"
    }
  ]
}


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