cnvd-2021-51799
Vulnerability from cnvd
Title
Nextcloud存在未明漏洞（CNVD-2021-51799）
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之前的版本存在安全漏洞，该漏洞源于删除用户后不会删除webauthn令牌。如果受害者重复使用以前使用过的用户名，以前的用户就可以访问他们的帐户。目前没有详细漏洞细节提供。
Severity
高
Patch Name
Nextcloud存在未明漏洞（CNVD-2021-51799）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之前的版本存在安全漏洞，该漏洞源于删除用户后不会删除webauthn令牌。如果受害者重复使用以前使用过的用户名，以前的用户就可以访问他们的帐户。目前没有详细漏洞细节提供。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-6qr9-c846-j8mg

Reference
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-6qr9-c846-j8mg
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

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-32726",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-32726"
    }
  },
  "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\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5220\u9664\u7528\u6237\u540e\u4e0d\u4f1a\u5220\u9664webauthn\u4ee4\u724c\u3002\u5982\u679c\u53d7\u5bb3\u8005\u91cd\u590d\u4f7f\u7528\u4ee5\u524d\u4f7f\u7528\u8fc7\u7684\u7528\u6237\u540d\uff0c\u4ee5\u524d\u7684\u7528\u6237\u5c31\u53ef\u4ee5\u8bbf\u95ee\u4ed6\u4eec\u7684\u5e10\u6237\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://github.com/nextcloud/security-advisories/security/advisories/GHSA-6qr9-c846-j8mg",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-51799",
  "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\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5220\u9664\u7528\u6237\u540e\u4e0d\u4f1a\u5220\u9664webauthn\u4ee4\u724c\u3002\u5982\u679c\u53d7\u5bb3\u8005\u91cd\u590d\u4f7f\u7528\u4ee5\u524d\u4f7f\u7528\u8fc7\u7684\u7528\u6237\u540d\uff0c\u4ee5\u524d\u7684\u7528\u6237\u5c31\u53ef\u4ee5\u8bbf\u95ee\u4ed6\u4eec\u7684\u5e10\u6237\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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-2021-51799\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-6qr9-c846-j8mg",
  "serverity": "\u9ad8",
  "submitTime": "2021-07-15",
  "title": "Nextcloud\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2021-51799\uff09"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • 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.