cnvd - cnvd-2021-51801

cnvd-2021-51801

Vulnerability from cnvd

Title: Nextcloud跨站脚本漏洞（CNVD-2021-51801）

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 Text在19.0.13、20.0.11和21.0.3之前的版本中存在跨站脚本漏洞，该漏洞是一个跨站脚本漏洞。目前没有详细漏洞细节提供。

Severity: 中

Patch Name: Nextcloud跨站脚本漏洞（CNVD-2021-51801）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 Text在19.0.13、20.0.11和21.0.3之前的版本中存在跨站脚本漏洞，该漏洞是一个跨站脚本漏洞。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-x4w3-jhcr-57pq

Reference: https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x4w3-jhcr-57pq

Impacted products

Name
['Nextcloud Nextcloud Text 19.0.13', 'Nextcloud Nextcloud Text 20.0.11', 'Nextcloud Nextcloud Text <21.0.3']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-32733",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-32733"
    }
  },
  "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 Text\u572819.0.13\u300120.0.11\u548c21.0.3\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u662f\u4e00\u4e2a\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\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-x4w3-jhcr-57pq",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-51801",
  "openTime": "2021-07-15",
  "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 Text\u572819.0.13\u300120.0.11\u548c21.0.3\u4e4b\u524d\u7684\u7248\u672c\u4e2d\u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u662f\u4e00\u4e2a\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\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\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff08CNVD-2021-51801\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Nextcloud Nextcloud Text 19.0.13",
      "Nextcloud Nextcloud Text 20.0.11",
      "Nextcloud Nextcloud Text \u003c21.0.3"
    ]
  },
  "referenceLink": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x4w3-jhcr-57pq",
  "serverity": "\u4e2d",
  "submitTime": "2021-07-15",
  "title": "Nextcloud\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff08CNVD-2021-51801\uff09"
}

CVE-2021-32733 (GCVE-0-2021-32733)

Vulnerability from cvelistv5

Published

2021-07-12 21:05

Modified

2024-08-03 23:33

Severity ?

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

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Summary

Nextcloud Text is a collaborative document editing application that uses Markdown. A cross-site scripting vulnerability is present in versions prior to 19.0.13, 20.0.11, and 21.0.3. The Nextcloud Text application shipped with Nextcloud server used a `text/html` Content-Type when serving files to users. Due the strict Content-Security-Policy shipped with Nextcloud, this issue is not exploitable on modern browsers supporting Content-Security-Policy. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. As a workaround, use a browser that has support for Content-Security-Policy.

References

▼	URL	Tags
	https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x4w3-jhcr-57pq	x_refsource_CONFIRM
	https://github.com/nextcloud/text/pull/1689	x_refsource_MISC
	https://hackerone.com/reports/1241460	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	nextcloud	security-advisories	Version: < 19.0.13 Version: >= 20.0.0, < 20.0.11 Version: >= 21.0.0, < 21.0.3

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T23:33:55.559Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x4w3-jhcr-57pq"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/nextcloud/text/pull/1689"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://hackerone.com/reports/1241460"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "security-advisories",
          "vendor": "nextcloud",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 19.0.13"
            },
            {
              "status": "affected",
              "version": "\u003e= 20.0.0, \u003c 20.0.11"
            },
            {
              "status": "affected",
              "version": "\u003e= 21.0.0, \u003c 21.0.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Nextcloud Text is a collaborative document editing application that uses Markdown. A cross-site scripting vulnerability is present in versions prior to 19.0.13, 20.0.11, and 21.0.3. The Nextcloud Text application shipped with Nextcloud server used a `text/html` Content-Type when serving files to users. Due the strict Content-Security-Policy shipped with Nextcloud, this issue is not exploitable on modern browsers supporting Content-Security-Policy. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. As a workaround, use a browser that has support for Content-Security-Policy."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-07-12T21:05:12",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x4w3-jhcr-57pq"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/nextcloud/text/pull/1689"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://hackerone.com/reports/1241460"
        }
      ],
      "source": {
        "advisory": "GHSA-x4w3-jhcr-57pq",
        "discovery": "UNKNOWN"
      },
      "title": "XSS in Nextcloud Text application",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2021-32733",
          "STATE": "PUBLIC",
          "TITLE": "XSS in Nextcloud Text application"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "security-advisories",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003c 19.0.13"
                          },
                          {
                            "version_value": "\u003e= 20.0.0, \u003c 20.0.11"
                          },
                          {
                            "version_value": "\u003e= 21.0.0, \u003c 21.0.3"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "nextcloud"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Nextcloud Text is a collaborative document editing application that uses Markdown. A cross-site scripting vulnerability is present in versions prior to 19.0.13, 20.0.11, and 21.0.3. The Nextcloud Text application shipped with Nextcloud server used a `text/html` Content-Type when serving files to users. Due the strict Content-Security-Policy shipped with Nextcloud, this issue is not exploitable on modern browsers supporting Content-Security-Policy. The issue was fixed in versions 19.0.13, 20.0.11, and 21.0.3. As a workaround, use a browser that has support for Content-Security-Policy."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x4w3-jhcr-57pq",
              "refsource": "CONFIRM",
              "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-x4w3-jhcr-57pq"
            },
            {
              "name": "https://github.com/nextcloud/text/pull/1689",
              "refsource": "MISC",
              "url": "https://github.com/nextcloud/text/pull/1689"
            },
            {
              "name": "https://hackerone.com/reports/1241460",
              "refsource": "MISC",
              "url": "https://hackerone.com/reports/1241460"
            }
          ]
        },
        "source": {
          "advisory": "GHSA-x4w3-jhcr-57pq",
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2021-32733",
    "datePublished": "2021-07-12T21:05:12",
    "dateReserved": "2021-05-12T00:00:00",
    "dateUpdated": "2024-08-03T23:33:55.559Z",
    "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.

Action not permitted