Vulnerability-Lookup

CNVD-2021-58262

Vulnerability from cnvd - Published: 2021-08-04

Title

Etherpad跨站脚本漏洞

Description

Etherpad是一个基于Web的在线文档协作工具。多个用户可以通过Etherpad同时编写一个文本文档，并看到所有的参与者的实时编辑。 Etherpad 1.8.13版中的chat组件存在跨站脚本漏洞，攻击者可通过导入特制pad利用该漏洞注入任意JavaScript或HTML。

Severity

中

Patch Name

Etherpad跨站脚本漏洞的补丁

Patch Description

Etherpad是一个基于Web的在线文档协作工具。多个用户可以通过Etherpad同时编写一个文本文档，并看到所有的参与者的实时编辑。 Etherpad 1.8.13版中的chat组件存在跨站脚本漏洞，攻击者可通过导入特制pad利用该漏洞注入任意JavaScript或HTML。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/ether/etherpad-lite/releases/tag/1.8.14

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-34817

Impacted products

Name
Etherpad Etherpad 1.8.13

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-34817",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-34817"
    }
  },
  "description": "Etherpad\u662f\u4e00\u4e2a\u57fa\u4e8eWeb\u7684\u5728\u7ebf\u6587\u6863\u534f\u4f5c\u5de5\u5177\u3002\u591a\u4e2a\u7528\u6237\u53ef\u4ee5\u901a\u8fc7Etherpad\u540c\u65f6\u7f16\u5199\u4e00\u4e2a\u6587\u672c\u6587\u6863\uff0c\u5e76\u770b\u5230\u6240\u6709\u7684\u53c2\u4e0e\u8005\u7684\u5b9e\u65f6\u7f16\u8f91\u3002\n\nEtherpad 1.8.13\u7248\u4e2d\u7684chat\u7ec4\u4ef6\u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5bfc\u5165\u7279\u5236pad\u5229\u7528\u8be5\u6f0f\u6d1e\u6ce8\u5165\u4efb\u610fJavaScript\u6216HTML\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/ether/etherpad-lite/releases/tag/1.8.14",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-58262",
  "openTime": "2021-08-04",
  "patchDescription": "Etherpad\u662f\u4e00\u4e2a\u57fa\u4e8eWeb\u7684\u5728\u7ebf\u6587\u6863\u534f\u4f5c\u5de5\u5177\u3002\u591a\u4e2a\u7528\u6237\u53ef\u4ee5\u901a\u8fc7Etherpad\u540c\u65f6\u7f16\u5199\u4e00\u4e2a\u6587\u672c\u6587\u6863\uff0c\u5e76\u770b\u5230\u6240\u6709\u7684\u53c2\u4e0e\u8005\u7684\u5b9e\u65f6\u7f16\u8f91\u3002\r\n\r\nEtherpad 1.8.13\u7248\u4e2d\u7684chat\u7ec4\u4ef6\u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5bfc\u5165\u7279\u5236pad\u5229\u7528\u8be5\u6f0f\u6d1e\u6ce8\u5165\u4efb\u610fJavaScript\u6216HTML\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": "Etherpad\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Etherpad Etherpad 1.8.13"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-34817",
  "serverity": "\u4e2d",
  "submitTime": "2021-07-20",
  "title": "Etherpad\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e"
}

CVE-2021-34817 (GCVE-0-2021-34817)

Vulnerability from cvelistv5 – Published: 2021-07-19 13:38 – Updated: 2024-08-04 00:26

Summary

A Cross-Site Scripting (XSS) issue in the chat component of Etherpad 1.8.13 allows remote attackers to inject arbitrary JavaScript or HTML by importing a crafted pad.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

4 references

URL	Tags
https://etherpad.org/#download	x_refsource_MISC
https://github.com/ether/etherpad-lite/releases/t…	x_refsource_MISC
https://blog.sonarsource.com/etherpad-code-execut…	x_refsource_MISC
https://github.com/ether/etherpad-lite/commit/a79…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T00:26:53.996Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://etherpad.org/#download"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/ether/etherpad-lite/releases/tag/1.8.14"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://blog.sonarsource.com/etherpad-code-execution-vulnerabilities"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/ether/etherpad-lite/commit/a7968115581e20ef47a533e030f59f830486bdfa"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A Cross-Site Scripting (XSS) issue in the chat component of Etherpad 1.8.13 allows remote attackers to inject arbitrary JavaScript or HTML by importing a crafted pad."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-07-19T13:38:11.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://etherpad.org/#download"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ether/etherpad-lite/releases/tag/1.8.14"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://blog.sonarsource.com/etherpad-code-execution-vulnerabilities"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ether/etherpad-lite/commit/a7968115581e20ef47a533e030f59f830486bdfa"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-34817",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A Cross-Site Scripting (XSS) issue in the chat component of Etherpad 1.8.13 allows remote attackers to inject arbitrary JavaScript or HTML by importing a crafted pad."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://etherpad.org/#download",
              "refsource": "MISC",
              "url": "https://etherpad.org/#download"
            },
            {
              "name": "https://github.com/ether/etherpad-lite/releases/tag/1.8.14",
              "refsource": "MISC",
              "url": "https://github.com/ether/etherpad-lite/releases/tag/1.8.14"
            },
            {
              "name": "https://blog.sonarsource.com/etherpad-code-execution-vulnerabilities",
              "refsource": "MISC",
              "url": "https://blog.sonarsource.com/etherpad-code-execution-vulnerabilities"
            },
            {
              "name": "https://github.com/ether/etherpad-lite/commit/a7968115581e20ef47a533e030f59f830486bdfa",
              "refsource": "MISC",
              "url": "https://github.com/ether/etherpad-lite/commit/a7968115581e20ef47a533e030f59f830486bdfa"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-34817",
    "datePublished": "2021-07-19T13:38:11.000Z",
    "dateReserved": "2021-06-17T00:00:00.000Z",
    "dateUpdated": "2024-08-04T00:26:53.996Z",
    "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.