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CVE-2020-7012

Estado: ModificadaAlta (8.8)—💥 Exploit

Kibana versions 6.7.0 to 6.8.8 and 7.0.0 to 7.6.2 contain a prototype pollution flaw in the Upgrade Assistant. An authenticated attacker with privileges to write to the Kibana index could insert data that would cause Kibana to execute arbitrary code. This could possibly lead to an attacker executing code with the permissions of the Kibana process on the host system.

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).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

Tecnologías afectadas (1)

Elastic — Kibana

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-7012",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
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        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
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        "obtainOtherPrivilege": false,
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    "cvssMetricV31": [
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
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        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
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  },
  "affected": [
    {
      "source": "security@elastic.co",
      "affectedData": [
        {
          "vendor": "Elastic",
          "product": "Kibana",
          "versions": [
            {
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              "version": "6.7.0 to 6.8.8 and 7.0.0 to 7.6.2"
            }
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  "published": "2020-06-03T18:15:22.857",
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      "url": "https://www.elastic.co/community/security/",
      "tags": [
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  ],
  "vulnStatus": "Modified",
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      "description": [
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          "value": "CWE-94"
        }
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    },
    {
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      "source": "nvd@nist.gov",
      "description": [
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          "value": "CWE-94"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Kibana versions 6.7.0 to 6.8.8 and 7.0.0 to 7.6.2 contain a prototype pollution flaw in the Upgrade Assistant. An authenticated attacker with privileges to write to the Kibana index could insert data that would cause Kibana to execute arbitrary code. This could possibly lead to an attacker executing code with the permissions of the Kibana process on the host system."
    },
    {
      "lang": "es",
      "value": "Kibana versiones 6.7.0 hasta 6.8.8 y 7.0.0 hasta 7.6.2, contienen un fallo contaminación de prototipo en el Upgrade Assistant. Un atacante autenticado con privilegios para escribir en el índice de Kibana podría insertar datos que harían que Kibana ejecutara código arbitrario. Esto podría conllevar posiblemente a que un atacante ejecute código con los permisos del proceso de Kibana en el sistema host."
    }
  ],
  "lastModified": "2026-06-17T03:24:07.277",
  "configurations": [
    {
      "nodes": [
        {
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          "cpeMatch": [
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              "versionEndIncluding": "6.8.8",
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            },
            {
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              "matchCriteriaId": "6A924300-1A1E-4244-B734-3BFAB553A9F5",
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}