FKIE_CVE-2021-29659

Vulnerability from fkie_nvd - Published: 2021-05-20 13:15 - Updated: 2025-03-31 11:54
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
ownCloud 10.7 has an incorrect access control vulnerability, leading to remote information disclosure. Due to a bug in the related API endpoint, the attacker can enumerate all users in a single request by entering three whitespaces. Secondary, the retrieval of all users on a large instance could cause higher than average load on the instance.
References
cve@mitre.orghttps://doc.owncloud.com/server/admin_manual/release_notes.htmlRelease Notes, Vendor Advisory
cve@mitre.orghttps://owncloud.com/security-advisories/cve-2021-29659/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://doc.owncloud.com/server/admin_manual/release_notes.htmlRelease Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://owncloud.com/security-advisories/cve-2021-29659/Vendor Advisory
Impacted products
Vendor Product Version
owncloud owncloud_server 10.7.0
To clipboard 

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    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:owncloud:owncloud_server:10.7.0:-:*:*:*:*:*:*",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "ownCloud 10.7 has an incorrect access control vulnerability, leading to remote information disclosure. Due to a bug in the related API endpoint, the attacker can enumerate all users in a single request by entering three whitespaces. Secondary, the retrieval of all users on a large instance could cause higher than average load on the instance."
    },
    {
      "lang": "es",
      "value": "ownCloud versi\u00f3n 10.7, presenta una vulnerabilidad de control de acceso incorrecto, conllevando a una divulgaci\u00f3n de informaci\u00f3n remota.\u0026#xa0;Debido a un bug en el endpoint de la API relacionada, el atacante puede enumerar a todos los usuarios en una sola petici\u00f3n al ingresar tres espacios en blanco.\u0026#xa0;En segundo lugar, la recuperaci\u00f3n de todos los usuarios en una instancia grande podr\u00eda causar una carga superior a la media en la instancia"
    }
  ],
  "id": "CVE-2021-29659",
  "lastModified": "2025-03-31T11:54:18.823",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 4.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/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": [
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          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-05-20T13:15:07.627",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "url": "https://doc.owncloud.com/server/admin_manual/release_notes.html"
    },
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
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          "lang": "en",
          "value": "NVD-CWE-Other"
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      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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