nvd-json-data-feeds/CVE-2020/CVE-2020-151xx/CVE-2020-15133.json

{
  "id": "CVE-2020-15133",
  "sourceIdentifier": "security-advisories@github.com",
  "published": "2020-07-31T18:15:14.473",
  "lastModified": "2024-11-21T05:04:54.867",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In faye-websocket before version 0.11.0, there is a lack of certification validation in TLS handshakes. The `Faye::WebSocket::Client` class uses the `EM::Connection#start_tls` method in EventMachine to implement the TLS handshake whenever a `wss:` URL is used for the connection. This method does not implement certificate verification by default, meaning that it does not check that the server presents a valid and trusted TLS certificate for the expected hostname. That means that any `wss:` connection made using this library is vulnerable to a man-in-the-middle attack, since it does not confirm the identity of the server it is connected to. For further background information on this issue, please see the referenced GitHub Advisory. Upgrading `faye-websocket` to v0.11.0 is recommended."
    },
    {
      "lang": "es",
      "value": "En faye-websocket versiones anteriores a 0.11.0, se presenta una falta de comprobaci\u00f3n de certificaci\u00f3n en los protocolos de enlaces TLS. La clase \"Faye::WebSocket::Client\" usa el m\u00e9todo \"EM::Connection #start_tls\" en EventMachine para implementar el protocolo de enlace TLS cada vez que una URL \"wss:\" es usada para la conexi\u00f3n. Este m\u00e9todo no implementa la verificaci\u00f3n de certificados por defecto, lo que significa que no comprueba que el servidor presente un certificado TLS v\u00e1lido y confiable para el nombre de host esperado. Eso significa que cualquier conexi\u00f3n \"wss:\" realizada con esta biblioteca es vulnerable a un ataque de tipo man-in-the-middle, ya que no confirma la identidad del servidor al que est\u00e1 conectado. Para obtener m\u00e1s informaci\u00f3n de fondo sobre este tema, consulte el Aviso de GitHub referenciado. Es recomendado actualizar \"faye-websocket\" a la versi\u00f3n  v0.11.0"
    }
  ],
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        "source": "security-advisories@github.com",
        "type": "Secondary",
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          "version": "3.1",
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          "baseScore": 8.0,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "CHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE"
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        "exploitabilityScore": 1.6,
        "impactScore": 5.8
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        "type": "Primary",
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          "scope": "CHANGED",
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        "source": "nvd@nist.gov",
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          "accessVector": "NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "NONE"
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.6,
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        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
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      }
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  },
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      "source": "security-advisories@github.com",
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  "configurations": [
    {
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          "cpeMatch": [
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              "vulnerable": true,
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  "references": [
    {
      "url": "https://blog.jcoglan.com/2020/07/31/missing-tls-verification-in-faye/",
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}