{
  "GSD": {
    "alias": "CVE-2021-40368",
    "description": "A vulnerability has been identified in SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) (All versions \u003c V6.0.10), SIMATIC S7-400 PN/DP V7 CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants) (All versions \u003c V10.1), SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants) (All versions). Affected devices improperly handle specially crafted packets sent to port 102/tcp. This could allow an attacker to create a Denial-of-Service condition. A restart is needed to restore normal operations.",
    "id": "GSD-2021-40368"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-40368"
      ],
      "details": "A vulnerability has been identified in  SIMATIC S7-400 CPU 412-1 DP V7 (All versions),  SIMATIC S7-400 CPU 412-2 DP V7 (All versions),  SIMATIC S7-400 CPU 412-2 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 414-2 DP V7 (All versions),  SIMATIC S7-400 CPU 414-3 DP V7 (All versions),  SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 414F-3 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 416-2 DP V7 (All versions),  SIMATIC S7-400 CPU 416-3 DP V7 (All versions),  SIMATIC S7-400 CPU 416-3 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 416F-2 DP V7 (All versions),  SIMATIC S7-400 CPU 416F-3 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 417-4 DP V7 (All versions), SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) (All versions \u003c V6.0.10), SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants) (All versions \u003c V10.1), SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants) (All versions \u003c V8.2.3), SIPLUS S7-400 CPU 414-3 PN/DP V7 (All versions \u003c V7.0.3), SIPLUS S7-400 CPU 416-3 PN/DP V7 (All versions \u003c V7.0.3), SIPLUS S7-400 CPU 416-3 V7 (All versions), SIPLUS S7-400 CPU 417-4 V7 (All versions). Affected devices improperly handle specially crafted packets sent to port 102/tcp.\n\nThis could allow an attacker to create a Denial-of-Service condition. A restart is needed to restore normal operations.",
      "id": "GSD-2021-40368",
      "modified": "2023-12-13T01:23:25.609510Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "productcert@siemens.com",
        "ID": "CVE-2021-40368",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": " SIMATIC S7-400 CPU 412-1 DP V7",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "All versions"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": " SIMATIC S7-400 CPU 412-2 DP V7",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "All versions"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": " SIMATIC S7-400 CPU 412-2 PN/DP V7",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "All versions \u003c V7.0.3"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": " SIMATIC S7-400 CPU 414-2 DP V7",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "All versions"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": " SIMATIC S7-400 CPU 414-3 DP V7",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "All versions"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": " SIMATIC S7-400 CPU 414-3 PN/DP V7",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "All versions \u003c V7.0.3"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": " SIMATIC S7-400 CPU 414F-3 PN/DP V7",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "All versions \u003c V7.0.3"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": " SIMATIC S7-400 CPU 416-2 DP V7",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "All versions"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": " SIMATIC S7-400 CPU 416-3 DP V7",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "All versions"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": " SIMATIC S7-400 CPU 416-3 PN/DP V7",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "All versions \u003c V7.0.3"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": " SIMATIC S7-400 CPU 416F-2 DP V7",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "All versions"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": " SIMATIC S7-400 CPU 416F-3 PN/DP V7",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "All versions \u003c V7.0.3"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": " SIMATIC S7-400 CPU 417-4 DP V7",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "All versions"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants)",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "All versions \u003c V6.0.10"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants)",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "All versions \u003c V10.1"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants)",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "All versions \u003c V8.2.3"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "SIPLUS S7-400 CPU 414-3 PN/DP V7",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "All versions \u003c V7.0.3"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "SIPLUS S7-400 CPU 416-3 PN/DP V7",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "All versions \u003c V7.0.3"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "SIPLUS S7-400 CPU 416-3 V7",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "All versions"
                        }
                      ]
                    }
                  },
                  {
                    "product_name": "SIPLUS S7-400 CPU 417-4 V7",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "All versions"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Siemens"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "A vulnerability has been identified in  SIMATIC S7-400 CPU 412-1 DP V7 (All versions),  SIMATIC S7-400 CPU 412-2 DP V7 (All versions),  SIMATIC S7-400 CPU 412-2 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 414-2 DP V7 (All versions),  SIMATIC S7-400 CPU 414-3 DP V7 (All versions),  SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 414F-3 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 416-2 DP V7 (All versions),  SIMATIC S7-400 CPU 416-3 DP V7 (All versions),  SIMATIC S7-400 CPU 416-3 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 416F-2 DP V7 (All versions),  SIMATIC S7-400 CPU 416F-3 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 417-4 DP V7 (All versions), SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) (All versions \u003c V6.0.10), SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants) (All versions \u003c V10.1), SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants) (All versions \u003c V8.2.3), SIPLUS S7-400 CPU 414-3 PN/DP V7 (All versions \u003c V7.0.3), SIPLUS S7-400 CPU 416-3 PN/DP V7 (All versions \u003c V7.0.3), SIPLUS S7-400 CPU 416-3 V7 (All versions), SIPLUS S7-400 CPU 417-4 V7 (All versions). Affected devices improperly handle specially crafted packets sent to port 102/tcp.\n\nThis could allow an attacker to create a Denial-of-Service condition. A restart is needed to restore normal operations."
          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "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"
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "cweId": "CWE-119",
                "lang": "eng",
                "value": "CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-557541.pdf",
            "refsource": "MISC",
            "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-557541.pdf"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [
              {
                "children": [],
                "cpe_match": [
                  {
                    "cpe23Uri": "cpe:2.3:o:siemens:simatic_s7-400h_v6_firmware:*:*:*:*:*:*:*:*",
                    "cpe_name": [],
                    "versionEndExcluding": "6.0.10",
                    "vulnerable": true
                  }
                ],
                "operator": "OR"
              },
              {
                "children": [],
                "cpe_match": [
                  {
                    "cpe23Uri": "cpe:2.3:h:siemens:simatic_s7-400h_v6:-:*:*:*:*:*:*:*",
                    "cpe_name": [],
                    "vulnerable": false
                  }
                ],
                "operator": "OR"
              }
            ],
            "cpe_match": [],
            "operator": "AND"
          },
          {
            "children": [
              {
                "children": [],
                "cpe_match": [
                  {
                    "cpe23Uri": "cpe:2.3:o:siemens:simatic_s7-400_pn\\/dp_v7_firmware:*:*:*:*:*:*:*:*",
                    "cpe_name": [],
                    "vulnerable": true
                  }
                ],
                "operator": "OR"
              },
              {
                "children": [],
                "cpe_match": [
                  {
                    "cpe23Uri": "cpe:2.3:h:siemens:simatic_s7-400_pn\\/dp_v7:-:*:*:*:*:*:*:*",
                    "cpe_name": [],
                    "vulnerable": false
                  }
                ],
                "operator": "OR"
              }
            ],
            "cpe_match": [],
            "operator": "AND"
          },
          {
            "children": [
              {
                "children": [],
                "cpe_match": [
                  {
                    "cpe23Uri": "cpe:2.3:o:siemens:simatic_s7-410_v8_firmware:*:*:*:*:*:*:*:*",
                    "cpe_name": [],
                    "vulnerable": true
                  }
                ],
                "operator": "OR"
              },
              {
                "children": [],
                "cpe_match": [
                  {
                    "cpe23Uri": "cpe:2.3:h:siemens:simatic_s7-410_v8:-:*:*:*:*:*:*:*",
                    "cpe_name": [],
                    "vulnerable": false
                  }
                ],
                "operator": "OR"
              }
            ],
            "cpe_match": [],
            "operator": "AND"
          },
          {
            "children": [
              {
                "children": [],
                "cpe_match": [
                  {
                    "cpe23Uri": "cpe:2.3:o:siemens:simatic_s7-410_v10_firmware:*:*:*:*:*:*:*:*",
                    "cpe_name": [],
                    "versionEndExcluding": "10.1",
                    "vulnerable": true
                  }
                ],
                "operator": "OR"
              },
              {
                "children": [],
                "cpe_match": [
                  {
                    "cpe23Uri": "cpe:2.3:h:siemens:simatic_s7-410_v10:-:*:*:*:*:*:*:*",
                    "cpe_name": [],
                    "vulnerable": false
                  }
                ],
                "operator": "OR"
              }
            ],
            "cpe_match": [],
            "operator": "AND"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "productcert@siemens.com",
          "ID": "CVE-2021-40368"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "A vulnerability has been identified in  SIMATIC S7-400 CPU 412-1 DP V7 (All versions),  SIMATIC S7-400 CPU 412-2 DP V7 (All versions),  SIMATIC S7-400 CPU 412-2 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 414-2 DP V7 (All versions),  SIMATIC S7-400 CPU 414-3 DP V7 (All versions),  SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 414F-3 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 416-2 DP V7 (All versions),  SIMATIC S7-400 CPU 416-3 DP V7 (All versions),  SIMATIC S7-400 CPU 416-3 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 416F-2 DP V7 (All versions),  SIMATIC S7-400 CPU 416F-3 PN/DP V7 (All versions \u003c V7.0.3),  SIMATIC S7-400 CPU 417-4 DP V7 (All versions), SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants) (All versions \u003c V6.0.10), SIMATIC S7-410 V10 CPU family (incl. SIPLUS variants) (All versions \u003c V10.1), SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants) (All versions \u003c V8.2.3), SIPLUS S7-400 CPU 414-3 PN/DP V7 (All versions \u003c V7.0.3), SIPLUS S7-400 CPU 416-3 PN/DP V7 (All versions \u003c V7.0.3), SIPLUS S7-400 CPU 416-3 V7 (All versions), SIPLUS S7-400 CPU 417-4 V7 (All versions). Affected devices improperly handle specially crafted packets sent to port 102/tcp.\n\nThis could allow an attacker to create a Denial-of-Service condition. A restart is needed to restore normal operations."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-119"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "N/A",
              "refsource": "CONFIRM",
              "tags": [
                "Patch",
                "Vendor Advisory"
              ],
              "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-557541.pdf"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2023-04-11T10:15Z",
      "publishedDate": "2022-04-12T09:15Z"
    }
  }
}