Vulnerability-Lookup

CNVD-2024-29657

Vulnerability from cnvd - Published: 2024-06-28

Title

Nextcloud访问控制错误漏洞（CNVD-2024-29657）

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存在访问控制错误漏洞，该漏洞源于缺少访问控制，攻击者可利用该漏洞可以注册一个帐户，最终获得所有注册用户可用的数据的访问权限。

Severity

中

Patch Name

Nextcloud访问控制错误漏洞（CNVD-2024-29657）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存在访问控制错误漏洞，该漏洞源于缺少访问控制，攻击者可利用该漏洞可以注册一个帐户，最终获得所有注册用户可用的数据的访问权限。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-vw7g-959g-vj6q

Reference

https://nvd.nist.gov/vuln/detail/CVE-2024-37312

Impacted products

Name
['Nextcloud Nextcloud user_oidc <3.0.0', 'Nextcloud Nextcloud user_oidc <4.0.0', 'Nextcloud Nextcloud user_oidc <5.0.0']

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2024-37312",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2024-37312"
    }
  },
  "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\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f3a\u5c11\u8bbf\u95ee\u63a7\u5236\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u53ef\u4ee5\u6ce8\u518c\u4e00\u4e2a\u5e10\u6237\uff0c\u6700\u7ec8\u83b7\u5f97\u6240\u6709\u6ce8\u518c\u7528\u6237\u53ef\u7528\u7684\u6570\u636e\u7684\u8bbf\u95ee\u6743\u9650\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-vw7g-959g-vj6q",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2024-29657",
  "openTime": "2024-06-28",
  "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\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f3a\u5c11\u8bbf\u95ee\u63a7\u5236\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u53ef\u4ee5\u6ce8\u518c\u4e00\u4e2a\u5e10\u6237\uff0c\u6700\u7ec8\u83b7\u5f97\u6240\u6709\u6ce8\u518c\u7528\u6237\u53ef\u7528\u7684\u6570\u636e\u7684\u8bbf\u95ee\u6743\u9650\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\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2024-29657\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Nextcloud Nextcloud user_oidc \u003c3.0.0",
      "Nextcloud Nextcloud user_oidc \u003c4.0.0",
      "Nextcloud Nextcloud user_oidc \u003c5.0.0"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2024-37312",
  "serverity": "\u4e2d",
  "submitTime": "2024-06-21",
  "title": "Nextcloud\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2024-29657\uff09"
}

CVE-2024-37312 (GCVE-0-2024-37312)

Vulnerability from cvelistv5 – Published: 2024-06-14 14:43 – Updated: 2024-08-02 03:50

Title

Nextcloud user_oidc app's ID4me feature is available even when disabled

Summary

user_oidc app is an OpenID Connect user backend for Nextcloud. Missing access control on the ID4me endpoint allows an attacker to register an account eventually getting access to data that is available to all registered users. It is recommended that the OpenID Connect user backend is upgraded to 3.0.0 (Nextcloud 20-23), 4.0.0 (Nexcloud 24) or 5.0.0 (Nextcloud 25-28).

Severity

6.3 (Medium)


                        
                          CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-06-14 17:15 UTC

CWE

CWE-284 - Improper Access Control

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/nextcloud/security-advisories/…	x_refsource_CONFIRM
https://github.com/nextcloud/user_oidc/commit/9f6…	x_refsource_MISC
https://hackerone.com/reports/2376929	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
nextcloud	security-advisories	Affected: <= 1.3.6
nextcloud	user_oidc	Affected: 0 , ≤ 1.3.6 (custom) cpe:2.3:a:nextcloud:user_oidc:-:::::::*

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JSON

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{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:nextcloud:user_oidc:-:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "user_oidc",
            "vendor": "nextcloud",
            "versions": [
              {
                "lessThanOrEqual": "1.3.6",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-37312",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-06-14T17:15:53.717769Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-14T17:15:56.731Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T03:50:55.709Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-vw7g-959g-vj6q",
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-vw7g-959g-vj6q"
          },
          {
            "name": "https://github.com/nextcloud/user_oidc/commit/9f68a716ecd264160a7c098b8840313f1ac855f2",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/nextcloud/user_oidc/commit/9f68a716ecd264160a7c098b8840313f1ac855f2"
          },
          {
            "name": "https://hackerone.com/reports/2376929",
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://hackerone.com/reports/2376929"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "security-advisories",
          "vendor": "nextcloud",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= 1.3.6"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "user_oidc app is an OpenID Connect user backend for Nextcloud. Missing access control on the ID4me endpoint allows an attacker to register an account eventually getting access to data that is available to all registered users. It is recommended that the OpenID Connect user backend is upgraded to 3.0.0 (Nextcloud 20-23), 4.0.0 (Nexcloud 24) or 5.0.0 (Nextcloud 25-28).\n"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-284",
              "description": "CWE-284: Improper Access Control",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-06-14T14:43:24.137Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-vw7g-959g-vj6q",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-vw7g-959g-vj6q"
        },
        {
          "name": "https://github.com/nextcloud/user_oidc/commit/9f68a716ecd264160a7c098b8840313f1ac855f2",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/nextcloud/user_oidc/commit/9f68a716ecd264160a7c098b8840313f1ac855f2"
        },
        {
          "name": "https://hackerone.com/reports/2376929",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://hackerone.com/reports/2376929"
        }
      ],
      "source": {
        "advisory": "GHSA-vw7g-959g-vj6q",
        "discovery": "UNKNOWN"
      },
      "title": "Nextcloud user_oidc app\u0027s ID4me feature is available even when disabled"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2024-37312",
    "datePublished": "2024-06-14T14:43:24.137Z",
    "dateReserved": "2024-06-05T20:10:46.498Z",
    "dateUpdated": "2024-08-02T03:50:55.709Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.