ssa-697140
Vulnerability from csaf_siemens
Published
2022-10-11 00:00
Modified
2025-02-11 00:00
Summary
SSA-697140: Denial of Service Vulnerability in the TCP Event Service of SCALANCE and RUGGEDCOM Products

Notes

Summary
The products listed below contain a denial of service vulnerability in the TCP event interface that could allow an unauthenticated remote attacker to render the device unusable. Siemens has released updates for the affected products and recommends to update to the latest versions.
General Recommendations
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' 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
Additional Resources
For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories
Terms of Use
The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use.


To clipboard 

{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited. (TLPv2: TLP:CLEAR)",
      "tlp": {
        "label": "WHITE"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "The products listed below contain a denial of service vulnerability in the TCP event interface that could allow an unauthenticated remote attacker to render the device unusable.\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 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",
        "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": "The use of Siemens Security Advisories is subject to the terms and conditions listed on: https://www.siemens.com/productcert/terms-of-use.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "productcert@siemens.com",
      "name": "Siemens ProductCERT",
      "namespace": "https://www.siemens.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "SSA-697140: Denial of Service Vulnerability in the TCP Event Service of SCALANCE and RUGGEDCOM Products - HTML Version",
        "url": "https://cert-portal.siemens.com/productcert/html/ssa-697140.html"
      },
      {
        "category": "self",
        "summary": "SSA-697140: Denial of Service Vulnerability in the TCP Event Service of SCALANCE and RUGGEDCOM Products - CSAF Version",
        "url": "https://cert-portal.siemens.com/productcert/csaf/ssa-697140.json"
      }
    ],
    "title": "SSA-697140: Denial of Service Vulnerability in the TCP Event Service of SCALANCE and RUGGEDCOM Products",
    "tracking": {
      "current_release_date": "2025-02-11T00:00:00Z",
      "generator": {
        "engine": {
          "name": "Siemens ProductCERT CSAF Generator",
          "version": "1"
        }
      },
      "id": "SSA-697140",
      "initial_release_date": "2022-10-11T00:00:00Z",
      "revision_history": [
        {
          "date": "2022-10-11T00:00:00Z",
          "legacy_version": "1.0",
          "number": "1",
          "summary": "Publication Date"
        },
        {
          "date": "2023-01-10T00:00:00Z",
          "legacy_version": "1.1",
          "number": "2",
          "summary": "Added fix for SCALANCE W-700 IEEE 802.11ax product family"
        },
        {
          "date": "2023-03-14T00:00:00Z",
          "legacy_version": "1.2",
          "number": "3",
          "summary": "Added missing affected products SCALANCE S615 EEC (6GK5615-0AA01-2AA2) and SCALANCE M876-4 (6GK5876-4AA10-2BA2)"
        },
        {
          "date": "2025-02-11T00:00:00Z",
          "legacy_version": "1.3",
          "number": "4",
          "summary": "Corrected fix for CVE-2022-31766 for SCALANCE W-700 IEEE 802.11ax family devices"
        }
      ],
      "status": "interim",
      "version": "4"
    }
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          },
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              {
                "category": "product_version_range",
                "name": "vers:all/\u003e=V1.1.0|\u003cV3.0.0",
                "product": {
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                  "product_id": "29",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5766-1GE00-3DB0"
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              }
            ],
            "category": "product_name",
            "name": "SCALANCE WUM766-1 (USA) (6GK5766-1GE00-3DB0)"
          }
        ],
        "category": "vendor",
        "name": "Siemens"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2022-31766",
      "cwe": {
        "id": "CWE-20",
        "name": "Improper Input Validation"
      },
      "notes": [
        {
          "category": "summary",
          "text": "Affected devices with TCP Event service enabled do not properly handle malformed packets.\r\nThis could allow an unauthenticated remote attacker to cause a denial of service condition and reboot the device thus possibly affecting other network resources.",
          "title": "Summary"
        }
      ],
      "product_status": {
        "known_affected": [
          "1",
          "2",
          "3",
          "4",
          "5",
          "6",
          "7",
          "8",
          "9",
          "10",
          "11",
          "12",
          "13",
          "14",
          "15",
          "16",
          "17",
          "18",
          "19",
          "20",
          "21",
          "22",
          "23",
          "24",
          "25",
          "26",
          "27",
          "28",
          "29"
        ]
      },
      "remediations": [
        {
          "category": "mitigation",
          "details": "Deactivate the TCP Event feature (not active by default)",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14",
            "15",
            "16",
            "17",
            "18",
            "19",
            "20",
            "21",
            "22",
            "23",
            "24",
            "25",
            "26",
            "27",
            "28",
            "29"
          ]
        },
        {
          "category": "mitigation",
          "details": "Restrict access to the TCP Event Service port (default 26864/tcp) to trusted networks and client IP addresses",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14",
            "15",
            "16",
            "17",
            "18",
            "19",
            "20",
            "21",
            "22",
            "23",
            "24",
            "25",
            "26",
            "27",
            "28",
            "29"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V3.0.0 or later version",
          "product_ids": [
            "21",
            "22",
            "23",
            "24",
            "25",
            "26",
            "27",
            "28",
            "29"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109977720/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V7.1.2 or later version",
          "product_ids": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14",
            "15",
            "16",
            "17",
            "18",
            "19",
            "20"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109813051/"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1",
            "2",
            "3",
            "4",
            "5",
            "6",
            "7",
            "8",
            "9",
            "10",
            "11",
            "12",
            "13",
            "14",
            "15",
            "16",
            "17",
            "18",
            "19",
            "20",
            "21",
            "22",
            "23",
            "24",
            "25",
            "26",
            "27",
            "28",
            "29"
          ]
        }
      ],
      "title": "CVE-2022-31766"
    }
  ]
}


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