FKIE_CVE-2019-15621

Vulnerability from fkie_nvd - Published: 2020-02-04 20:15 - Updated: 2024-11-21 04:29
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Summary
Improper permissions preservation in Nextcloud Server 16.0.1 causes sharees to be able to reshare with write permissions when sharing the mount point of a share they received, as a public link.
References
support@hackerone.comhttp://lists.opensuse.org/opensuse-security-announce/2020-02/msg00019.html
support@hackerone.comhttp://lists.opensuse.org/opensuse-security-announce/2020-02/msg00022.html
support@hackerone.comhttps://hackerone.com/reports/619484Permissions Required
support@hackerone.comhttps://nextcloud.com/security/advisory/?id=NC-SA-2020-012Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00019.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00022.html
af854a3a-2127-422b-91ae-364da2661108https://hackerone.com/reports/619484Permissions Required
af854a3a-2127-422b-91ae-364da2661108https://nextcloud.com/security/advisory/?id=NC-SA-2020-012Vendor Advisory
Impacted products
Vendor Product Version
nextcloud nextcloud_server *
nextcloud nextcloud_server *
nextcloud nextcloud_server *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6CECA205-0B13-4AF4-8EDA-6515068DB461",
              "versionEndExcluding": "14.0.13",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "AE568F12-81AB-44E6-AAD7-AB6D4DE7B9CE",
              "versionEndExcluding": "15.0.9",
              "versionStartIncluding": "15.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "930E2DE7-4D34-4634-8FC4-CDEB45A9B8EF",
              "versionEndExcluding": "16.0.2",
              "versionStartIncluding": "16.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper permissions preservation in Nextcloud Server 16.0.1 causes sharees to be able to reshare with write permissions when sharing the mount point of a share they received, as a public link."
    },
    {
      "lang": "es",
      "value": "Una preservaci\u00f3n de permisos inapropiada en Nextcloud Server versi\u00f3n 16.0.1, causa que los recursos compartidos sean capaces de compartir con permisos de escritura cuando comparte el punto de montaje de un recurso compartido que recibieron, como un enlace p\u00fablico."
    }
  ],
  "id": "CVE-2019-15621",
  "lastModified": "2024-11-21T04:29:08.857",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 4.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-02-04T20:15:12.527",
  "references": [
    {
      "source": "support@hackerone.com",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00019.html"
    },
    {
      "source": "support@hackerone.com",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00022.html"
    },
    {
      "source": "support@hackerone.com",
      "tags": [
        "Permissions Required"
      ],
      "url": "https://hackerone.com/reports/619484"
    },
    {
      "source": "support@hackerone.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://nextcloud.com/security/advisory/?id=NC-SA-2020-012"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00019.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00022.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Permissions Required"
      ],
      "url": "https://hackerone.com/reports/619484"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://nextcloud.com/security/advisory/?id=NC-SA-2020-012"
    }
  ],
  "sourceIdentifier": "support@hackerone.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-281"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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