nvd-json-data-feeds/CVE-2020/CVE-2020-77xx/CVE-2020-7777.json

{
  "id": "CVE-2020-7777",
  "sourceIdentifier": "report@snyk.io",
  "published": "2020-11-23T16:15:13.603",
  "lastModified": "2020-12-03T20:48:30.380",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "This affects all versions of package jsen. If an attacker can control the schema file, it could run arbitrary JavaScript code on the victim machine. In the module description and README file there is no mention about the risks of untrusted schema files, so I assume that this is applicable. In particular the required field of the schema is not properly sanitized. The resulting string that is build based on the schema definition is then passed to a Function.apply();, leading to an Arbitrary Code Execution."
    },
    {
      "lang": "es",
      "value": "Esto afecta a todas las versiones del paquete jsen. Si un atacante puede controlar el archivo de esquema, podr\u00eda ejecutar c\u00f3digo JavaScript arbitrario en la m\u00e1quina v\u00edctima. En la descripci\u00f3n del m\u00f3dulo y el archivo README no son mencionados los riesgos de los archivos de esquema que no son confiables, as\u00ed que supongo que esto es aplicable. En particular, el campo requerido del esquema no es saneado apropiadamente. La cadena resultante que es construida seg\u00fan la definici\u00f3n del esquema es pasada luego a una funci\u00f3n Function.apply();, conllevando a una Ejecuci\u00f3n de C\u00f3digo Arbitraria"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "report@snyk.io",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "HIGH",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 7.2,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 5.9
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "SINGLE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.5
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.0,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:jsen_project:jsen:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "513CE3A9-7F6B-4FDE-A248-7F160B474D48"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/bugventure/jsen/blob/master/lib/jsen.js%23L875",
      "source": "report@snyk.io",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "https://snyk.io/vuln/SNYK-JS-JSEN-1014670",
      "source": "report@snyk.io",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ]
    }
  ]
}