cnvd - cnvd-2021-51796

cnvd-2021-51796

Vulnerability from cnvd

Title: Nextcloud存在未明漏洞（CNVD-2021-51796）

Description:

Nextcloud是德国Nextcloud公司的一套开源的自托管文件同步和共享的通信应用平台。

Nextcloud Server在19.0.13、20.011和21.0.3之前的版本中存在安全漏洞，攻击者可利用该漏洞枚举可能有效的共享令牌。

Severity: 中

Patch Name: Nextcloud存在未明漏洞（CNVD-2021-51796）的补丁

Patch Description:

Nextcloud是德国Nextcloud公司的一套开源的自托管文件同步和共享的通信应用平台。

Nextcloud Server在19.0.13、20.011和21.0.3之前的版本中存在安全漏洞，攻击者可利用该漏洞枚举可能有效的共享令牌。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description:

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6hf5-c2c4-2526

Reference: https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6hf5-c2c4-2526

Impacted products

Name
['Nextcloud Nextcloud Server 19.0.13', 'Nextcloud Nextcloud Server <21.0.3', 'Nextcloud Nextcloud Server 20.011']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-32703",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-32703"
    }
  },
  "description": "Nextcloud\u662f\u5fb7\u56fdNextcloud\u516c\u53f8\u7684\u4e00\u5957\u5f00\u6e90\u7684\u81ea\u6258\u7ba1\u6587\u4ef6\u540c\u6b65\u548c\u5171\u4eab\u7684\u901a\u4fe1\u5e94\u7528\u5e73\u53f0\u3002\n\nNextcloud Server\u572819.0.13\u300120.011\u548c21.0.3\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u679a\u4e3e\u53ef\u80fd\u6709\u6548\u7684\u5171\u4eab\u4ee4\u724c\u3002",
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-51796",
  "openTime": "2021-07-19",
  "patchDescription": "Nextcloud\u662f\u5fb7\u56fdNextcloud\u516c\u53f8\u7684\u4e00\u5957\u5f00\u6e90\u7684\u81ea\u6258\u7ba1\u6587\u4ef6\u540c\u6b65\u548c\u5171\u4eab\u7684\u901a\u4fe1\u5e94\u7528\u5e73\u53f0\u3002\r\n\r\nNextcloud Server\u572819.0.13\u300120.011\u548c21.0.3\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u679a\u4e3e\u53ef\u80fd\u6709\u6548\u7684\u5171\u4eab\u4ee4\u724c\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Nextcloud\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2021-51796\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Nextcloud Nextcloud Server 19.0.13",
      "Nextcloud Nextcloud Server \u003c21.0.3",
      "Nextcloud Nextcloud Server 20.011"
    ]
  },
  "referenceLink": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6hf5-c2c4-2526",
  "serverity": "\u4e2d",
  "submitTime": "2021-07-15",
  "title": "Nextcloud\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2021-51796\uff09"
}

CVE-2021-32703 (GCVE-0-2021-32703)

Vulnerability from cvelistv5

Published

2021-07-12 15:25

Modified

2024-08-03 23:25

Severity ?

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CWE

CWE-799 - Improper Control of Interaction Frequency

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 shareinfo 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

▼	URL	Tags
	https://github.com/nextcloud/security-advisories/security/advisories/GHSA-375p-cxxq-gc9p	x_refsource_CONFIRM
	https://github.com/nextcloud/server/pull/26945	x_refsource_MISC
	https://hackerone.com/reports/1173684	x_refsource_MISC
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J63NBVPR2AQCAWRNDOZSGRY5II4WS2CZ/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BVZS26RDME2DYTKET5AECRIZDFUGR2AZ/	vendor-advisory, x_refsource_FEDORA
	https://security.gentoo.org/glsa/202208-17	vendor-advisory, x_refsource_GENTOO

Impacted products

	Vendor	Product	Version
	nextcloud	security-advisories	Version: < 19.0.13 Version: >= 20.0.0, < 20.0.11 Version: >= 21.0.0, < 21.0.3

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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        "providerMetadata": {
          "dateUpdated": "2024-08-03T23:25:31.105Z",
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          {
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            ],
            "url": "https://github.com/nextcloud/server/pull/26945"
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              "x_refsource_MISC",
              "x_transferred"
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            "url": "https://hackerone.com/reports/1173684"
          },
          {
            "name": "FEDORA-2021-9b421b78af",
            "tags": [
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              "x_refsource_FEDORA",
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            "name": "GLSA-202208-17",
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              "x_transferred"
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            "url": "https://security.gentoo.org/glsa/202208-17"
          }
        ],
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              "status": "affected",
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        }
      ],
      "metrics": [
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            "confidentialityImpact": "NONE",
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    "datePublished": "2021-07-12T15:25:12",
    "dateReserved": "2021-05-12T00:00:00",
    "dateUpdated": "2024-08-03T23:25:31.105Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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