CVE-2017-6928

{
  "id": "CVE-2017-6928",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 3.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:S/C:P/I:N/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "LOW",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 1.6
      }
    ]
  },
  "affected": [
    {
      "source": "mlhess@drupal.org",
      "affectedData": [
        {
          "vendor": "Drupal.org",
          "product": "Drupal Core",
          "versions": [
            {
              "status": "affected",
              "version": "Drupal 7.x versions before 7.57"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-03-01T23:29:00.357",
  "references": [
    {
      "url": "https://lists.debian.org/debian-lts-announce/2018/02/msg00030.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "mlhess@drupal.org"
    },
    {
      "url": "https://www.debian.org/security/2018/dsa-4123",
      "tags": [
        "Issue Tracking"
      ],
      "source": "mlhess@drupal.org"
    },
    {
      "url": "https://www.drupal.org/sa-core-2018-001",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "mlhess@drupal.org"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2018/02/msg00030.html",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.debian.org/security/2018/dsa-4123",
      "tags": [
        "Issue Tracking"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.drupal.org/sa-core-2018-001",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-732"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Drupal core 7.x versions before 7.57 when using Drupal's private file system, Drupal will check to make sure a user has access to a file before allowing the user to view or download it. This check fails under certain conditions in which one module is trying to grant access to the file and another is trying to deny it, leading to an access bypass vulnerability. This vulnerability is mitigated by the fact that it only occurs for unusual site configurations."
    },
    {
      "lang": "es",
      "value": "Las versiones 7.x de Drupal core anteriores a la 7.57, cuando emplean el sistema de archivos privado de Drupal, comprobarán si un usuario tiene acceso a un archivo antes de permitirle verlo o descargarlo. Esta comprobación fracasa en ciertos casos en los que un módulo intenta otorgar acceso al archivo y otro intenta denegarlo, lo que conduce a una vulnerabilidad de omisión de acceso. La vulnerabilidad se mitiga por el hecho de que solo ocurre en configuraciones de sitio poco comunes."
    }
  ],
  "lastModified": "2026-06-17T01:23:21.123",
  "configurations": [
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  "sourceIdentifier": "mlhess@drupal.org"
}