{
  "id": "CVE-2022-31803",
  "sourceIdentifier": "info@cert.vde.com",
  "published": "2022-06-24T08:15:07.463",
  "lastModified": "2022-07-01T13:34:36.227",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "In CODESYS Gateway Server V2 an insufficient check for the activity of TCP client connections allows an unauthenticated attacker to consume all available TCP connections and prevent legitimate users or clients from establishing a new connection to the CODESYS Gateway Server V2. Existing connections are not affected and therefore remain intact."
    },
    {
      "lang": "es",
      "value": "En CODESYS Gateway Server versi\u00f3n V2, una comprobaci\u00f3n insuficiente de la actividad de las conexiones de clientes TCP permite a un atacante no autenticado consumir todas las conexiones TCP disponibles e impedir que los usuarios o clientes leg\u00edtimos establezcan una nueva conexi\u00f3n con CODESYS Gateway Server V2. Las conexiones existentes no est\u00e1n afectadas y, por tanto, permanecen intactas"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "info@cert.vde.com",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "LOW",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "info@cert.vde.com",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:codesys:gateway:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "2.0",
              "versionEndExcluding": "2.3.9.38",
              "matchCriteriaId": "BB2B49E7-1AE9-418A-AC9E-0166D16F38BD"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=17141&token=17867e35cfd30c77ba0137f9a17b3a557a4b7b66&download=",
      "source": "info@cert.vde.com",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}