FKIE_CVE-2021-32741

Vulnerability from fkie_nvd - Published: 2021-07-12 22:15 - Updated: 2024-11-21 06:07
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Summary
Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.011, and 21.0.3, there was a lack of ratelimiting on the public share link mount endpoint. This may have allowed an attacker to enumerate potentially valid share tokens. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds.
References
security-advisories@github.comhttps://github.com/nextcloud/security-advisories/security/advisories/GHSA-crvj-vmf7-xrvrThird Party Advisory
security-advisories@github.comhttps://github.com/nextcloud/server/pull/26958Patch, Third Party Advisory
security-advisories@github.comhttps://hackerone.com/reports/1192144Permissions Required
af854a3a-2127-422b-91ae-364da2661108https://github.com/nextcloud/security-advisories/security/advisories/GHSA-crvj-vmf7-xrvrThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/nextcloud/server/pull/26958Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://hackerone.com/reports/1192144Permissions Required
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": "7D4E2A1A-C03E-4B91-87B6-6A8652B284F7",
              "versionEndExcluding": "19.0.13",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "9CF8A48F-A16D-4C5F-B098-F92F3D361FA9",
              "versionEndExcluding": "20.0.11",
              "versionStartIncluding": "20.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D490C8D8-910E-44A1-9A8E-2F892D35D6CF",
              "versionEndExcluding": "21.0.3",
              "versionStartIncluding": "21.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Nextcloud Server is a Nextcloud package that handles data storage. In versions prior to 19.0.13, 20.011, and 21.0.3, there was a lack of ratelimiting on the public share link mount endpoint. This may have allowed an attacker to enumerate potentially valid share tokens. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. There are no known workarounds."
    },
    {
      "lang": "es",
      "value": "Nextcloud Server es un paquete de Nextcloud que maneja el almacenamiento de datos. En versiones anteriores a 19.0.13, 20.011 y 21.0.3, se presenta una falta de l\u00edmite de velocidad en el endpoint de montaje del enlace p\u00fablico. Esto podr\u00eda haber permitido a un atacante enumerar tokens de recursos compartidos potencialmente v\u00e1lidos. El problema se ha corregido en las versiones 19.0.13, 20.0.11 y 21.0.3. No hay soluciones conocidas"
    }
  ],
  "id": "CVE-2021-32741",
  "lastModified": "2024-11-21T06:07:39.033",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
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        "type": "Secondary"
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          "version": "3.1"
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        "impactScore": 1.4,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  },
  "published": "2021-07-12T22:15:07.993",
  "references": [
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      "tags": [
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      "tags": [
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    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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      "url": "https://github.com/nextcloud/server/pull/26958"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://hackerone.com/reports/1192144"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-799"
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      "source": "security-advisories@github.com",
      "type": "Secondary"
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    {
      "description": [
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          "lang": "en",
          "value": "NVD-CWE-Other"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • 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.



Detection rules are retrieved from Rulezet.