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CVE-2020-5402

Estado: ModificadaAlta (8.8)—

In Cloud Foundry UAA, versions prior to 74.14.0, a CSRF vulnerability exists due to the OAuth2 state parameter not being checked in the callback function when authenticating with external identity providers.

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)

Cloudfoundry — Cf-deploymentCloudfoundry — User Account AND Authentication

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2020-5402",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
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          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
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          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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    "cvssMetricV31": [
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        "type": "Primary",
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      "source": "security@pivotal.io",
      "affectedData": [
        {
          "vendor": "Cloud Foundry",
          "product": "UAA",
          "versions": [
            {
              "status": "affected",
              "version": "unspecified",
              "lessThan": "v74.14.0",
              "versionType": "custom"
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          ]
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    }
  ],
  "published": "2020-02-27T20:15:11.577",
  "references": [
    {
      "url": "https://www.cloudfoundry.org/blog/cve-2020-5402",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "security@pivotal.io"
    },
    {
      "url": "https://www.cloudfoundry.org/blog/cve-2020-5402",
      "tags": [
        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security@pivotal.io",
      "description": [
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          "lang": "en",
          "value": "CWE-352"
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      "description": [
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  "descriptions": [
    {
      "lang": "en",
      "value": "In Cloud Foundry UAA, versions prior to 74.14.0, a CSRF vulnerability exists due to the OAuth2 state parameter not being checked in the callback function when authenticating with external identity providers."
    },
    {
      "lang": "es",
      "value": "En Cloud Foundry UAA, versiones anteriores a 74.14.0, se presenta una vulnerabilidad de tipo CSRF debido a que el parámetro de estado OAuth2 no es comprado en la función callback cuando se autentican con proveedores de identidad externa."
    }
  ],
  "lastModified": "2026-06-17T03:21:25.663",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "versionEndExcluding": "12.33.0"
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