cnvd - cnvd-2021-42394

cnvd-2021-42394

Vulnerability from cnvd

Title: Nextcloud信任管理问题漏洞（CNVD-2021-42394）

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 存在安全漏洞，该漏洞源于3.3.1之前的Nextcloud桌面客户端容易受到错误的证书验证，因为在使用“向提供商注册”流程时缺乏SSL证书验证。目前没有详细的漏洞细节提供。

Severity: 中

Patch Name: Nextcloud信任管理问题漏洞（CNVD-2021-42394）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 存在安全漏洞，该漏洞源于3.3.1之前的Nextcloud桌面客户端容易受到错误的证书验证，因为在使用“向提供商注册”流程时缺乏SSL证书验证。目前没有详细的漏洞细节提供。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，详情请关注厂商主页： https://nextcloud.com/

Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-22895

Impacted products

Name
Nextcloud Nextcloud <3.3.1

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-22895"
    }
  },
  "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 \u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e3.3.1\u4e4b\u524d\u7684Nextcloud\u684c\u9762\u5ba2\u6237\u7aef\u5bb9\u6613\u53d7\u5230\u9519\u8bef\u7684\u8bc1\u4e66\u9a8c\u8bc1\uff0c\u56e0\u4e3a\u5728\u4f7f\u7528\u201c\u5411\u63d0\u4f9b\u5546\u6ce8\u518c\u201d\u6d41\u7a0b\u65f6\u7f3a\u4e4fSSL\u8bc1\u4e66\u9a8c\u8bc1\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\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\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttps://nextcloud.com/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-42394",
  "openTime": "2021-06-17",
  "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 \u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e3.3.1\u4e4b\u524d\u7684Nextcloud\u684c\u9762\u5ba2\u6237\u7aef\u5bb9\u6613\u53d7\u5230\u9519\u8bef\u7684\u8bc1\u4e66\u9a8c\u8bc1\uff0c\u56e0\u4e3a\u5728\u4f7f\u7528\u201c\u5411\u63d0\u4f9b\u5546\u6ce8\u518c\u201d\u6d41\u7a0b\u65f6\u7f3a\u4e4fSSL\u8bc1\u4e66\u9a8c\u8bc1\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\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\u4fe1\u4efb\u7ba1\u7406\u95ee\u9898\u6f0f\u6d1e\uff08CNVD-2021-42394\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Nextcloud Nextcloud \u003c3.3.1"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-22895",
  "serverity": "\u4e2d",
  "submitTime": "2021-06-17",
  "title": "Nextcloud\u4fe1\u4efb\u7ba1\u7406\u95ee\u9898\u6f0f\u6d1e\uff08CNVD-2021-42394\uff09"
}

CVE-2021-22895 (GCVE-0-2021-22895)

Vulnerability from cvelistv5

Published

2021-06-11 15:49

Modified

2024-08-03 18:58

Severity ?

CWE

CWE-295 - Improper Certificate Validation ()

Summary

Nextcloud Desktop Client before 3.3.1 is vulnerable to improper certificate validation due to lack of SSL certificate verification when using the "Register with a Provider" flow.

References

▼	URL	Tags
	https://hackerone.com/reports/903424	x_refsource_MISC
	https://github.com/nextcloud/desktop/pull/2926	x_refsource_MISC
	https://github.com/nextcloud/desktop/releases/tag/v3.1.3	x_refsource_MISC
	https://github.com/nextcloud/security-advisories/security/advisories/GHSA-qpgp-vf4p-wcw5	x_refsource_MISC
	https://www.debian.org/security/2021/dsa-4974	vendor-advisory, x_refsource_DEBIAN

Impacted products

	Vendor	Product	Version
	n/a	Nextcloud Desktop Client	Version: Fixed in 3.3.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T18:58:25.644Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://hackerone.com/reports/903424"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/nextcloud/desktop/pull/2926"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/nextcloud/desktop/releases/tag/v3.1.3"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-qpgp-vf4p-wcw5"
          },
          {
            "name": "DSA-4974",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2021/dsa-4974"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Nextcloud Desktop Client",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Fixed in 3.3.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Nextcloud Desktop Client before 3.3.1 is vulnerable to improper certificate validation due to lack of SSL certificate verification when using the \"Register with a Provider\" flow."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-295",
              "description": "Improper Certificate Validation (CWE-295)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-09-19T23:06:09",
        "orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
        "shortName": "hackerone"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://hackerone.com/reports/903424"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/nextcloud/desktop/pull/2926"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/nextcloud/desktop/releases/tag/v3.1.3"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-qpgp-vf4p-wcw5"
        },
        {
          "name": "DSA-4974",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2021/dsa-4974"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "support@hackerone.com",
          "ID": "CVE-2021-22895",
          "STATE": "PUBLIC"
        },
        "affects": {
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              {
                "product": {
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                      "version": {
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                          {
                            "version_value": "Fixed in 3.3.1"
                          }
                        ]
                      }
                    }
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              }
            ]
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        },
        "data_format": "MITRE",
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        "data_version": "4.0",
        "description": {
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              "value": "Nextcloud Desktop Client before 3.3.1 is vulnerable to improper certificate validation due to lack of SSL certificate verification when using the \"Register with a Provider\" flow."
            }
          ]
        },
        "problemtype": {
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            {
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                {
                  "lang": "eng",
                  "value": "Improper Certificate Validation (CWE-295)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://hackerone.com/reports/903424",
              "refsource": "MISC",
              "url": "https://hackerone.com/reports/903424"
            },
            {
              "name": "https://github.com/nextcloud/desktop/pull/2926",
              "refsource": "MISC",
              "url": "https://github.com/nextcloud/desktop/pull/2926"
            },
            {
              "name": "https://github.com/nextcloud/desktop/releases/tag/v3.1.3",
              "refsource": "MISC",
              "url": "https://github.com/nextcloud/desktop/releases/tag/v3.1.3"
            },
            {
              "name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-qpgp-vf4p-wcw5",
              "refsource": "MISC",
              "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-qpgp-vf4p-wcw5"
            },
            {
              "name": "DSA-4974",
              "refsource": "DEBIAN",
              "url": "https://www.debian.org/security/2021/dsa-4974"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
    "assignerShortName": "hackerone",
    "cveId": "CVE-2021-22895",
    "datePublished": "2021-06-11T15:49:38",
    "dateReserved": "2021-01-06T00:00:00",
    "dateUpdated": "2024-08-03T18:58:25.644Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "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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