nvd-json-data-feeds/CVE-2021/CVE-2021-412xx/CVE-2021-41267.json

{
  "id": "CVE-2021-41267",
  "sourceIdentifier": "security-advisories@github.com",
  "published": "2021-11-24T19:15:07.737",
  "lastModified": "2021-11-30T18:52:27.077",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "Symfony/Http-Kernel is the HTTP kernel component for Symfony, a PHP framework for web and console applications and a set of reusable PHP components. Headers that are not part of the \"trusted_headers\" allowed list are ignored and protect users from \"Cache poisoning\" attacks. In Symfony 5.2, maintainers added support for the `X-Forwarded-Prefix` headers, but this header was accessible in SubRequest, even if it was not part of the \"trusted_headers\" allowed list. An attacker could leverage this opportunity to forge requests containing a `X-Forwarded-Prefix` header, leading to a web cache poisoning issue. Versions 5.3.12 and later have a patch to ensure that the `X-Forwarded-Prefix` header is not forwarded to subrequests when it is not trusted."
    },
    {
      "lang": "es",
      "value": "Symfony/Http-Kernel es el componente del n\u00facleo HTTP de Symfony, un framework PHP para aplicaciones web y de consola y un conjunto de componentes PHP reusables. Los encabezados que no forman parte de la lista permitida \"trusted_headers\" son ignoradas y protegen a los usuarios de ataques de \"Cache poisoning\". En Symfony versi\u00f3n 5.2, los mantenedores a\u00f1adieron soporte para los encabezados \"X-Forwarded-Prefix\", pero este encabezado era accesible en SubRequest, incluso si no era parte de la lista permitida \"trusted_headers\". Un atacante podr\u00eda aprovechar esta oportunidad para falsificar peticiones que contengan un encabezado \"X-Forwarded-Prefix\", conllevando aun problema de envenenamiento de la cach\u00e9 web. Las versiones 5.3.12 y posteriores presentan un parche para asegurar que el encabezado \"X-Forwarded-Prefix\" no es reenviado a las subpeticiones cuando no es confiable"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "security-advisories@github.com",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "accessVector": "NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "NONE",
          "baseScore": 4.3
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ]
  },
  "weaknesses": [
    {
      "source": "security-advisories@github.com",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-444"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "5.2.0",
              "versionEndExcluding": "5.3.12",
              "matchCriteriaId": "03A20B5C-F577-4E27-90BD-CB0689E7C602"
            }
          ]
        }
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  ],
  "references": [
    {
      "url": "https://github.com/symfony/symfony/commit/95dcf51682029e89450aee86267e3d553aa7c487",
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/symfony/symfony/pull/44243",
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/symfony/symfony/releases/tag/v5.3.12",
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://github.com/symfony/symfony/security/advisories/GHSA-q3j3-w37x-hq2q",
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
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    }
  ]
}