{
  "id": "CVE-2021-40872",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2021-11-10T23:15:08.300",
  "lastModified": "2021-11-16T15:01:33.820",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in Softing Industrial Automation uaToolkit Embedded before 1.40. Remote attackers to cause a denial of service (DoS) or login as an anonymous user (bypassing security checks) by sending crafted messages to a OPC/UA server. The server process may crash unexpectedly because of an invalid type cast, and must be restarted."
    },
    {
      "lang": "es",
      "value": "Se ha detectado un problema en Softing Industrial Automation uaToolkit Embedded versiones anteriores a 1.40. Unos atacantes remotos pueden causar una denegaci\u00f3n de servicio (DoS) o iniciar sesi\u00f3n como usuario an\u00f3nimo (omitiendo las comprobaciones de seguridad) mediante el env\u00edo de mensajes dise\u00f1ados a un servidor OPC/UA. El proceso del servidor puede bloquearse inesperadamente debido a un lanzamiento de tipo no v\u00e1lido, y debe reiniciarse"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "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:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "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": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-843"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:softing:smartlink_hw-dp:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "1.10",
              "matchCriteriaId": "6F7CE66A-2F1E-4EBB-BA6D-AA63ED40FD77"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:softing:uatoolkit_embedded:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "1.40",
              "matchCriteriaId": "E6CEDE30-1C5B-45B0-B4E9-A7A42485C03E"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://industrial.softing.com/",
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://industrial.softing.com/fileadmin/sof-files/pdf/ia/support/Security_Bulletin_CVE-2021-40872.pdf",
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}