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CVE-2020-24683

Estado: ModificadaCrítica (9.8)—

The affected versions of S+ Operations (version 2.1 SP1 and earlier) used an approach for user authentication which relies on validation at the client node (client-side authentication). This is not as secure as having the server validate a client application before allowing a connection. Therefore, if the network communication or endpoints for these applications are not protected, unauthorized actors can bypass authentication and make unauthorized connections to the server application.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (2)

ABB — Symphony + HistorianABB — Symphony + Operations

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2020-24683",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
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        "type": "Secondary",
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        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
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          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
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          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "impactScore": 5.9,
        "exploitabilityScore": 3.9
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  "affected": [
    {
      "source": "cybersecurity@ch.abb.com",
      "affectedData": [
        {
          "vendor": "ABB",
          "product": "ABB Ability™ Symphony® Plus Operations",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "2.1 SP1",
              "versionType": "custom"
            }
          ]
        }
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    }
  ],
  "published": "2020-12-22T22:15:13.757",
  "references": [
    {
      "url": "https://search.abb.com/library/Download.aspx?DocumentID=2PAA123980&LanguageCode=en&DocumentPartId=&Action=Launch",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ],
      "source": "cybersecurity@ch.abb.com"
    },
    {
      "url": "https://search.abb.com/library/Download.aspx?DocumentID=2PAA123980&LanguageCode=en&DocumentPartId=&Action=Launch",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "cybersecurity@ch.abb.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-305"
        },
        {
          "lang": "en",
          "value": "CWE-602"
        }
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    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-669"
        }
      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The affected versions of S+ Operations (version 2.1 SP1 and earlier) used an approach for user authentication which relies on validation at the client node (client-side authentication). This is not as secure as having the server validate a client application before allowing a connection. Therefore, if the network communication or endpoints for these applications are not protected, unauthorized actors can bypass authentication and make unauthorized connections to the server application."
    },
    {
      "lang": "es",
      "value": "Las versiones afectadas de S+ Operations (versión 2.1 SP1 y anteriores) utilizaron un enfoque para la autenticación de usuarios que se basa en la comprobación en el nodo del cliente (autenticación del lado del cliente). Esto no es tan seguro como hacer que el servidor valide una aplicación cliente antes de permitir una conexión. Por lo tanto, si la comunicación de red o los endpoints para estas aplicaciones no están protegidas, los actores no autorizados pueden omitir la autenticación y llevar a cabo conexiones no autorizadas hacia la aplicación del servidor"
    }
  ],
  "lastModified": "2026-06-17T03:05:58.960",
  "configurations": [
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