cnvd - cnvd-2022-20691

cnvd-2022-20691

Vulnerability from cnvd

Title: Nextcloud server信息泄露漏洞（CNVD-2022-20691）

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是一个自托管系统，旨在提供云风格的服务。

Nextcloud server存在信息泄露漏洞，该漏洞源于用户状态API未能考虑管理员的用户枚举设置。攻击者可利用漏洞对于用户进行枚举获取进一步信息。

Severity: 中

Patch Name: Nextcloud server信息泄露漏洞（CNVD-2022-20691）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是一个自托管系统，旨在提供云风格的服务。

Nextcloud server存在信息泄露漏洞，该漏洞源于用户状态API未能考虑管理员的用户枚举设置。攻击者可利用漏洞对于用户进行枚举获取进一步信息。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:

厂商已发布了漏洞修复程序，请及时关注更新： https://github.com/nextcloud/security-advisories/security/advisories/GHSA-g722-cm3h-8wrx

Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-41239

Impacted products

Name
['Nextcloud Nextcloud Server <20.0.14', 'Nextcloud Nextcloud Server >=21.0.0，<21.0.6', 'Nextcloud Nextcloud Server 22.2.0']

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-41239",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-41239"
    }
  },
  "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\u3002Nextcloud server\u662f\u4e00\u4e2a\u81ea\u6258\u7ba1\u7cfb\u7edf\uff0c\u65e8\u5728\u63d0\u4f9b\u4e91\u98ce\u683c\u7684\u670d\u52a1\u3002\n\nNextcloud server\u5b58\u5728\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7528\u6237\u72b6\u6001API\u672a\u80fd\u8003\u8651\u7ba1\u7406\u5458\u7684\u7528\u6237\u679a\u4e3e\u8bbe\u7f6e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u5bf9\u4e8e\u7528\u6237\u8fdb\u884c\u679a\u4e3e\u83b7\u53d6\u8fdb\u4e00\u6b65\u4fe1\u606f\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/nextcloud/security-advisories/security/advisories/GHSA-g722-cm3h-8wrx",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-20691",
  "openTime": "2022-03-18",
  "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\u3002Nextcloud server\u662f\u4e00\u4e2a\u81ea\u6258\u7ba1\u7cfb\u7edf\uff0c\u65e8\u5728\u63d0\u4f9b\u4e91\u98ce\u683c\u7684\u670d\u52a1\u3002\r\n\r\nNextcloud server\u5b58\u5728\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7528\u6237\u72b6\u6001API\u672a\u80fd\u8003\u8651\u7ba1\u7406\u5458\u7684\u7528\u6237\u679a\u4e3e\u8bbe\u7f6e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u5bf9\u4e8e\u7528\u6237\u8fdb\u884c\u679a\u4e3e\u83b7\u53d6\u8fdb\u4e00\u6b65\u4fe1\u606f\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 server\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2022-20691\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Nextcloud Nextcloud Server \u003c20.0.14",
      "Nextcloud Nextcloud Server \u003e=21.0.0\uff0c\u003c21.0.6",
      "Nextcloud Nextcloud Server 22.2.0"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-41239",
  "serverity": "\u4e2d",
  "submitTime": "2022-03-10",
  "title": "Nextcloud server\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2022-20691\uff09"
}

CVE-2021-41239 (GCVE-0-2021-41239)

Vulnerability from cvelistv5

Published

2022-03-08 18:05

Modified

2025-04-23 18:58

Severity ?

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

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor

Summary

Nextcloud server is a self hosted system designed to provide cloud style services. In affected versions the User Status API did not consider the user enumeration settings by the administrator. This allowed a user to enumerate other users on the instance, even when user listings where disabled. It is recommended that the Nextcloud Server is upgraded to 20.0.14, 21.0.6 or 22.2.1. There are no known workarounds.

References

▼	URL	Tags
	https://github.com/nextcloud/security-advisories/security/advisories/GHSA-g722-cm3h-8wrx	x_refsource_CONFIRM
	https://github.com/nextcloud/server/issues/27122	x_refsource_MISC
	https://github.com/nextcloud/server/pull/29260	x_refsource_MISC
	https://security.gentoo.org/glsa/202208-17	vendor-advisory, x_refsource_GENTOO

Impacted products

	Vendor	Product	Version
	nextcloud	security-advisories	Version: < 20.0.14 Version: >= 21.0.0, < 21.0.6 Version: >= 22.2.0, < 22.2.1

Show details on NVD website

JSON

To clipboard

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                "timestamp": "2025-04-23T15:57:02.638564Z",
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      "metrics": [
        {
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}

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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