Vulnerability-Lookup

CNVD-2019-18772

Vulnerability from cnvd - Published: 2019-06-21

Title

Nextcloud Server访问控制检查不当漏洞

Description

Nextcloud是一套用于创建文件托管服务并使用的客户端-服务器软件。 Nextcloud Server 14.0.0之前版本中存在访问控制检查不当漏洞，未认证远程攻击者可通过文件共享应用程序的publicpreview.php函数利用该漏洞绕过某些共享文件类型的密码保护。

Severity

中

Patch Name

Nextcloud Server访问控制检查不当漏洞的补丁

Patch Description

Nextcloud是一套用于创建文件托管服务并使用的客户端-服务器软件。 Nextcloud Server 14.0.0之前版本中存在访问控制检查不当漏洞，未认证远程攻击者可通过文件共享应用程序的publicpreview.php函数利用该漏洞绕过某些共享文件类型的密码保护。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://nextcloud.com/install/#instructions-server

Reference

https://nextcloud.com/security/advisory/?id=NC-SA-2018-014

Impacted products

Name
Nextcloud Nextcloud Server <14.0.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-16467"
    }
  },
  "description": "Nextcloud\u662f\u4e00\u5957\u7528\u4e8e\u521b\u5efa\u6587\u4ef6\u6258\u7ba1\u670d\u52a1\u5e76\u4f7f\u7528\u7684\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u8f6f\u4ef6\u3002\n\nNextcloud Server 14.0.0\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u8bbf\u95ee\u63a7\u5236\u68c0\u67e5\u4e0d\u5f53\u6f0f\u6d1e\uff0c\u672a\u8ba4\u8bc1\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u6587\u4ef6\u5171\u4eab\u5e94\u7528\u7a0b\u5e8f\u7684publicpreview.php\u51fd\u6570\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u67d0\u4e9b\u5171\u4eab\u6587\u4ef6\u7c7b\u578b\u7684\u5bc6\u7801\u4fdd\u62a4\u3002",
  "discovererName": "Carl Pearson",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://nextcloud.com/install/#instructions-server",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-18772",
  "openTime": "2019-06-21",
  "patchDescription": "Nextcloud\u662f\u4e00\u5957\u7528\u4e8e\u521b\u5efa\u6587\u4ef6\u6258\u7ba1\u670d\u52a1\u5e76\u4f7f\u7528\u7684\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u8f6f\u4ef6\u3002\r\n\r\nNextcloud Server 14.0.0\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u8bbf\u95ee\u63a7\u5236\u68c0\u67e5\u4e0d\u5f53\u6f0f\u6d1e\uff0c\u672a\u8ba4\u8bc1\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u6587\u4ef6\u5171\u4eab\u5e94\u7528\u7a0b\u5e8f\u7684publicpreview.php\u51fd\u6570\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u67d0\u4e9b\u5171\u4eab\u6587\u4ef6\u7c7b\u578b\u7684\u5bc6\u7801\u4fdd\u62a4\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\u8bbf\u95ee\u63a7\u5236\u68c0\u67e5\u4e0d\u5f53\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Nextcloud Nextcloud Server \u003c14.0.0"
  },
  "referenceLink": "https://nextcloud.com/security/advisory/?id=NC-SA-2018-014",
  "serverity": "\u4e2d",
  "submitTime": "2018-11-02",
  "title": "Nextcloud Server\u8bbf\u95ee\u63a7\u5236\u68c0\u67e5\u4e0d\u5f53\u6f0f\u6d1e"
}

CVE-2018-16467 (GCVE-0-2018-16467)

Vulnerability from cvelistv5 – Published: 2018-10-30 21:00 – Updated: 2024-08-05 10:24

Summary

A missing check in Nextcloud Server prior to 14.0.0 could give unauthorized access to the previews of single file password protected shares.

Severity

No CVSS data available.

CWE

CWE-200 - Information Disclosure (CWE-200)

Assigner

hackerone mitre root

References

2 references

URL	Tags
https://nextcloud.com/security/advisory/?id=NC-SA…	x_refsource_MISC
https://hackerone.com/reports/231917	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	Nextcloud Server	Affected: <14.0.0

Date Public

2018-10-30 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T10:24:32.609Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://nextcloud.com/security/advisory/?id=NC-SA-2018-014"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://hackerone.com/reports/231917"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Nextcloud Server",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c14.0.0"
            }
          ]
        }
      ],
      "datePublic": "2018-10-30T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A missing check in Nextcloud Server prior to 14.0.0 could give unauthorized access to the previews of single file password protected shares."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "Information Disclosure (CWE-200)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-10-30T20:57:01.000Z",
        "orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
        "shortName": "hackerone"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://nextcloud.com/security/advisory/?id=NC-SA-2018-014"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://hackerone.com/reports/231917"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "support@hackerone.com",
          "ID": "CVE-2018-16467",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Nextcloud Server",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003c14.0.0"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A missing check in Nextcloud Server prior to 14.0.0 could give unauthorized access to the previews of single file password protected shares."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Information Disclosure (CWE-200)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://nextcloud.com/security/advisory/?id=NC-SA-2018-014",
              "refsource": "MISC",
              "url": "https://nextcloud.com/security/advisory/?id=NC-SA-2018-014"
            },
            {
              "name": "https://hackerone.com/reports/231917",
              "refsource": "MISC",
              "url": "https://hackerone.com/reports/231917"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
    "assignerShortName": "hackerone",
    "cveId": "CVE-2018-16467",
    "datePublished": "2018-10-30T21:00:00.000Z",
    "dateReserved": "2018-09-04T00:00:00.000Z",
    "dateUpdated": "2024-08-05T10:24:32.609Z",
    "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.

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.

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CNVD-2019-18772

CVE-2018-16467 (GCVE-0-2018-16467)

Tags

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