{
  "document": {
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Disclosure is not limited. (TLPv2: TLP:CLEAR)",
      "tlp": {
        "label": "WHITE"
      }
    },
    "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": "Siemens Security Advisories are subject to the terms and conditions contained in Siemens\u0027 underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter \"License Terms\"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens\u0027 Global Website (https://www.siemens.com/terms_of_use, hereinafter \"Terms of Use\"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the 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 - PDF Version",
        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-697140.pdf"
      },
      {
        "category": "self",
        "summary": "SSA-697140: Denial of Service Vulnerability in the TCP Event Service of SCALANCE and RUGGEDCOM Products - TXT Version",
        "url": "https://cert-portal.siemens.com/productcert/txt/ssa-697140.txt"
      },
      {
        "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": "2023-03-14T00:00:00Z",
      "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)"
        }
      ],
      "status": "interim",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V7.1.2",
                "product": {
                  "name": "RUGGEDCOM RM1224 LTE(4G) EU (6GK6108-4AM00-2BA2)",
                  "product_id": "1",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK6108-4AM00-2BA2"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "RUGGEDCOM RM1224 LTE(4G) EU (6GK6108-4AM00-2BA2)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V7.1.2",
                "product": {
                  "name": "RUGGEDCOM RM1224 LTE(4G) NAM (6GK6108-4AM00-2DA2)",
                  "product_id": "2",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK6108-4AM00-2DA2"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "RUGGEDCOM RM1224 LTE(4G) NAM (6GK6108-4AM00-2DA2)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V7.1.2",
                "product": {
                  "name": "SCALANCE M804PB (6GK5804-0AP00-2AA2)",
                  "product_id": "3",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5804-0AP00-2AA2"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE M804PB (6GK5804-0AP00-2AA2)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V7.1.2",
                "product": {
                  "name": "SCALANCE M812-1 ADSL-Router (Annex A) (6GK5812-1AA00-2AA2)",
                  "product_id": "4",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5812-1AA00-2AA2"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE M812-1 ADSL-Router (Annex A) (6GK5812-1AA00-2AA2)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V7.1.2",
                "product": {
                  "name": "SCALANCE M812-1 ADSL-Router (Annex B) (6GK5812-1BA00-2AA2)",
                  "product_id": "5",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5812-1BA00-2AA2"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE M812-1 ADSL-Router (Annex B) (6GK5812-1BA00-2AA2)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V7.1.2",
                "product": {
                  "name": "SCALANCE M816-1 ADSL-Router (Annex A) (6GK5816-1AA00-2AA2)",
                  "product_id": "6",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5816-1AA00-2AA2"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE M816-1 ADSL-Router (Annex A) (6GK5816-1AA00-2AA2)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V7.1.2",
                "product": {
                  "name": "SCALANCE M816-1 ADSL-Router (Annex B) (6GK5816-1BA00-2AA2)",
                  "product_id": "7",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5816-1BA00-2AA2"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE M816-1 ADSL-Router (Annex B) (6GK5816-1BA00-2AA2)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V7.1.2",
                "product": {
                  "name": "SCALANCE M826-2 SHDSL-Router (6GK5826-2AB00-2AB2)",
                  "product_id": "8",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5826-2AB00-2AB2"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE M826-2 SHDSL-Router (6GK5826-2AB00-2AB2)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V7.1.2",
                "product": {
                  "name": "SCALANCE M874-2 (6GK5874-2AA00-2AA2)",
                  "product_id": "9",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5874-2AA00-2AA2"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE M874-2 (6GK5874-2AA00-2AA2)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V7.1.2",
                "product": {
                  "name": "SCALANCE M874-3 (6GK5874-3AA00-2AA2)",
                  "product_id": "10",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5874-3AA00-2AA2"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE M874-3 (6GK5874-3AA00-2AA2)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V7.1.2",
                "product": {
                  "name": "SCALANCE M876-3 (EVDO) (6GK5876-3AA02-2BA2)",
                  "product_id": "11",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5876-3AA02-2BA2"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE M876-3 (EVDO) (6GK5876-3AA02-2BA2)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V7.1.2",
                "product": {
                  "name": "SCALANCE M876-3 (ROK) (6GK5876-3AA02-2EA2)",
                  "product_id": "12",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5876-3AA02-2EA2"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE M876-3 (ROK) (6GK5876-3AA02-2EA2)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V7.1.2",
                "product": {
                  "name": "SCALANCE M876-4 (6GK5876-4AA10-2BA2)",
                  "product_id": "13",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5876-4AA10-2BA2"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE M876-4 (6GK5876-4AA10-2BA2)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V7.1.2",
                "product": {
                  "name": "SCALANCE M876-4 (EU) (6GK5876-4AA00-2BA2)",
                  "product_id": "14",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5876-4AA00-2BA2"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE M876-4 (EU) (6GK5876-4AA00-2BA2)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V7.1.2",
                "product": {
                  "name": "SCALANCE M876-4 (NAM) (6GK5876-4AA00-2DA2)",
                  "product_id": "15",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5876-4AA00-2DA2"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE M876-4 (NAM) (6GK5876-4AA00-2DA2)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V7.1.2",
                "product": {
                  "name": "SCALANCE MUM853-1 (EU) (6GK5853-2EA00-2DA1)",
                  "product_id": "16",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5853-2EA00-2DA1"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE MUM853-1 (EU) (6GK5853-2EA00-2DA1)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V7.1.2",
                "product": {
                  "name": "SCALANCE MUM856-1 (EU) (6GK5856-2EA00-3DA1)",
                  "product_id": "17",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5856-2EA00-3DA1"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE MUM856-1 (EU) (6GK5856-2EA00-3DA1)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V7.1.2",
                "product": {
                  "name": "SCALANCE MUM856-1 (RoW) (6GK5856-2EA00-3AA1)",
                  "product_id": "18",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5856-2EA00-3AA1"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE MUM856-1 (RoW) (6GK5856-2EA00-3AA1)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V7.1.2",
                "product": {
                  "name": "SCALANCE S615 (6GK5615-0AA00-2AA2)",
                  "product_id": "19",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5615-0AA00-2AA2"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE S615 (6GK5615-0AA00-2AA2)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003c V7.1.2",
                "product": {
                  "name": "SCALANCE S615 EEC (6GK5615-0AA01-2AA2)",
                  "product_id": "20",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5615-0AA01-2AA2"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE S615 EEC (6GK5615-0AA01-2AA2)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003e= V1.1.0 \u003c V2.0",
                "product": {
                  "name": "SCALANCE WAM763-1 (6GK5763-1AL00-7DA0)",
                  "product_id": "21",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5763-1AL00-7DA0"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE WAM763-1 (6GK5763-1AL00-7DA0)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003e= V1.1.0 \u003c V2.0",
                "product": {
                  "name": "SCALANCE WAM766-1 (EU) (6GK5766-1GE00-7DA0)",
                  "product_id": "22",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5766-1GE00-7DA0"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE WAM766-1 (EU) (6GK5766-1GE00-7DA0)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003e= V1.1.0 \u003c V2.0",
                "product": {
                  "name": "SCALANCE WAM766-1 (US) (6GK5766-1GE00-7DB0)",
                  "product_id": "23",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5766-1GE00-7DB0"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE WAM766-1 (US) (6GK5766-1GE00-7DB0)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003e= V1.1.0 \u003c V2.0",
                "product": {
                  "name": "SCALANCE WAM766-1 EEC (EU) (6GK5766-1GE00-7TA0)",
                  "product_id": "24",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5766-1GE00-7TA0"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE WAM766-1 EEC (EU) (6GK5766-1GE00-7TA0)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003e= V1.1.0 \u003c V2.0",
                "product": {
                  "name": "SCALANCE WAM766-1 EEC (US) (6GK5766-1GE00-7TB0)",
                  "product_id": "25",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5766-1GE00-7TB0"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE WAM766-1 EEC (US) (6GK5766-1GE00-7TB0)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003e= V1.1.0 \u003c V2.0",
                "product": {
                  "name": "SCALANCE WUM763-1 (6GK5763-1AL00-3DA0)",
                  "product_id": "26",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5763-1AL00-3DA0"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE WUM763-1 (6GK5763-1AL00-3DA0)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003e= V1.1.0 \u003c V2.0",
                "product": {
                  "name": "SCALANCE WUM763-1 (6GK5763-1AL00-3AA0)",
                  "product_id": "27",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5763-1AL00-3AA0"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE WUM763-1 (6GK5763-1AL00-3AA0)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003e= V1.1.0 \u003c V2.0",
                "product": {
                  "name": "SCALANCE WUM766-1 (EU) (6GK5766-1GE00-3DA0)",
                  "product_id": "28",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5766-1GE00-3DA0"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE WUM766-1 (EU) (6GK5766-1GE00-3DA0)"
          },
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "\u003e= V1.1.0 \u003c V2.0",
                "product": {
                  "name": "SCALANCE WUM766-1 (US) (6GK5766-1GE00-3DB0)",
                  "product_id": "29",
                  "product_identification_helper": {
                    "model_numbers": [
                      "6GK5766-1GE00-3DB0"
                    ]
                  }
                }
              }
            ],
            "category": "product_name",
            "name": "SCALANCE WUM766-1 (US) (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",
          "27",
          "26",
          "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",
            "27",
            "26",
            "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",
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            "25",
            "27",
            "26",
            "28",
            "29"
          ]
        },
        {
          "category": "vendor_fix",
          "details": "Update to V7.1.2 or later version",
          "product_ids": [
            "13",
            "20"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109813051/"
        },
        {
          "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",
            "14",
            "15",
            "16",
            "17",
            "18",
            "19"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109813051/"
        },
        {
          "category": "vendor_fix",
          "details": "Update to V2.0 or later version",
          "product_ids": [
            "21",
            "22",
            "23",
            "24",
            "25",
            "27",
            "26",
            "28",
            "29"
          ],
          "url": "https://support.industry.siemens.com/cs/ww/en/view/109815650/"
        }
      ],
      "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",
            "27",
            "26",
            "28",
            "29"
          ]
        }
      ],
      "title": "CVE-2022-31766"
    }
  ]
}