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CVE-2018-6342

Estado: ModificadaCrítica (9.8)—

react-dev-utils on Windows allows developers to run a local webserver for accepting various commands, including a command to launch an editor. The input to that command was not properly sanitized, allowing an attacker who can make a network request to the server (either via CSRF or by direct request) to execute arbitrary commands on the targeted system. This issue affects multiple branches: 1.x.x prior to 1.0.4, 2.x.x prior to 2.0.2, 3.x.x prior to 3.1.2, 4.x.x prior to 4.2.2, and 5.x.x prior to 5.0.2.

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 (1)

Facebook — React-dev-utils

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2018-6342",
  "cveTags": [],
  "metrics": {
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2018-6342",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-05-06T16:07:33.499324Z"
        }
      }
    ],
    "cvssMetricV2": [
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        "type": "Primary",
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        "cvssData": {
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          "baseScore": 10,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
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        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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    "cvssMetricV31": [
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        "source": "nvd@nist.gov",
        "cvssData": {
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          "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"
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        "impactScore": 5.9,
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          "availabilityImpact": "HIGH",
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          "confidentialityImpact": "HIGH"
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        "exploitabilityScore": 3.9
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  "affected": [
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      "affectedData": [
        {
          "vendor": "Facebook",
          "product": "react-dev-utils",
          "versions": [
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              "status": "affected",
              "version": "5.0.2"
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              "lessThan": "unspecified",
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            {
              "status": "affected",
              "version": "2.0.2"
            },
            {
              "status": "affected",
              "version": "2.0.0",
              "lessThan": "unspecified",
              "versionType": "custom"
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              "status": "affected",
              "version": "1.0.4"
            },
            {
              "status": "affected",
              "version": "1.0.0",
              "lessThan": "unspecified",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "unspecified",
              "lessThan": "1.0.0",
              "versionType": "custom"
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          ]
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      ]
    }
  ],
  "published": "2018-12-31T22:29:00.467",
  "references": [
    {
      "url": "https://github.com/facebook/create-react-app/pull/4866",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "cve-assign@fb.com"
    },
    {
      "url": "https://github.com/facebook/create-react-app/releases/tag/v1.1.5",
      "tags": [
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        "Third Party Advisory"
      ],
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    },
    {
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    },
    {
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      "tags": [
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        "Third Party Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
      "source": "cve-assign@fb.com",
      "description": [
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          "lang": "en",
          "value": "CWE-78"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
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    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "react-dev-utils on Windows allows developers to run a local webserver for accepting various commands, including a command to launch an editor. The input to that command was not properly sanitized, allowing an attacker who can make a network request to the server (either via CSRF or by direct request) to execute arbitrary commands on the targeted system. This issue affects multiple branches: 1.x.x prior to 1.0.4, 2.x.x prior to 2.0.2, 3.x.x prior to 3.1.2, 4.x.x prior to 4.2.2, and 5.x.x prior to 5.0.2."
    },
    {
      "lang": "es",
      "value": "react-dev-utils en Windows permite a desarrolladores ejecutar un servidor web local que acepta varios comandos, incluyendo un comando para iniciar un editor. Las entradas a dicho comando no fueron sanadas debidamente, permitiendo a un atacante que puede enviar una petición de red al servidor (o mediante CSRF o bajo petición directa) para ejecutar comandos arbitrarios en el sistema objetivo. Este problema afecta a múltiples gamas: Las versiones 1.x.x anteriores a la 1.0.4, las 2.x.x anteriores a la 2.0.2, las 3.x.x anteriores a la 3.1.2, las 4.x.x anteriores a la 4.2.2 y las 5.x.x anteriores a la 5.0.2."
    }
  ],
  "lastModified": "2026-06-17T02:01:42.190",
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