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CVE-2016-9462

Estado: ModificadaMedia (4.3)—

Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4 are not properly verifying restore privileges when restoring a file. The restore capability of Nextcloud/ownCloud was not verifying whether a user has only read-only access to a share. Thus a user with read-only access was able to restore old versions.

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 (2)

Nextcloud — Nextcloud ServerOwncloud — Owncloud

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2016-9462",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 4.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "support@hackerone.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "Nextcloud Server & ownCloud Server Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4",
          "versions": [
            {
              "status": "affected",
              "version": "Nextcloud Server & ownCloud Server Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4"
            }
          ]
        }
      ]
    }
  ],
  "published": "2017-03-28T02:59:00.887",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/97285",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "support@hackerone.com"
    },
    {
      "url": "https://github.com/nextcloud/server/commit/1208953ba1d4d55a18a639846bbcdd66a2d5bc5e",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "support@hackerone.com"
    },
    {
      "url": "https://github.com/owncloud/core/commit/23383080731d092e079986464a8c4c9ffcb79f4c",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "support@hackerone.com"
    },
    {
      "url": "https://github.com/owncloud/core/commit/3b056fa68ce502ceb0db9b446dab3b9e7b10dd13",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "support@hackerone.com"
    },
    {
      "url": "https://github.com/owncloud/core/commit/c93eca49c32428ece03dd67042772d5fa62c8d6e",
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        "Third Party Advisory"
      ],
      "source": "support@hackerone.com"
    },
    {
      "url": "https://github.com/owncloud/core/commit/d31720b6f1e8c8dfeb5e8805ab35ad7c8000b2f1",
      "tags": [
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        "Third Party Advisory"
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      "source": "support@hackerone.com"
    },
    {
      "url": "https://hackerone.com/reports/146067",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "support@hackerone.com"
    },
    {
      "url": "https://nextcloud.com/security/advisory/?id=nc-sa-2016-005",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "support@hackerone.com"
    },
    {
      "url": "https://owncloud.org/security/advisory/?id=oc-sa-2016-015",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "support@hackerone.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/97285",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/nextcloud/server/commit/1208953ba1d4d55a18a639846bbcdd66a2d5bc5e",
      "tags": [
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        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/owncloud/core/commit/23383080731d092e079986464a8c4c9ffcb79f4c",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/owncloud/core/commit/3b056fa68ce502ceb0db9b446dab3b9e7b10dd13",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
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    },
    {
      "url": "https://github.com/owncloud/core/commit/c93eca49c32428ece03dd67042772d5fa62c8d6e",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/owncloud/core/commit/d31720b6f1e8c8dfeb5e8805ab35ad7c8000b2f1",
      "tags": [
        "Issue Tracking",
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://hackerone.com/reports/146067",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://nextcloud.com/security/advisory/?id=nc-sa-2016-005",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://owncloud.org/security/advisory/?id=oc-sa-2016-015",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "support@hackerone.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-275"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-284"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Nextcloud Server before 9.0.52 & ownCloud Server before 9.0.4 are not properly verifying restore privileges when restoring a file. The restore capability of Nextcloud/ownCloud was not verifying whether a user has only read-only access to a share. Thus a user with read-only access was able to restore old versions."
    },
    {
      "lang": "es",
      "value": "Nextcloud Server en versiones anteriores a 9.0.52 & ownCloud Server en versiones anteriores a 9.0.4 no están verificando correctamente los privilegios de restauración al restaurar un archivo. La capacidad de restauración de Nextcloud/ownCloud no estaba verificando si un usuario sólo tiene acceso de sólo lectura a un recurso compartido. Así, un usuario con acceso de sólo lectura fue capaz de restaurar versiones antiguas."
    }
  ],
  "lastModified": "2026-06-17T00:56:06.977",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "DC479D9A-DAEB-42B6-98D7-0A417B34359D",
              "versionEndExcluding": "9.0.52"
            },
            {
              "criteria": "cpe:2.3:a:owncloud:owncloud:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3FAD2663-CE0E-4AB0-90C5-D47124458AAC",
              "versionEndExcluding": "9.0.4"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "support@hackerone.com"
}