Vulnerability-Lookup

CNVD-2020-60335

Vulnerability from cnvd - Published: 2020-11-03

Title

BigBlueButton Greenlight跨站脚本漏洞

Description

BigBlueButton是BigBlueButton社区的一套开源的Web会议系统。 BigBlueButton Greenlight 2.7.6版本存在跨站脚本漏洞，该漏洞源于admin .js的“merge account”功能存在跨站脚本(XSS)漏洞。目前没有详细漏洞细节提供。

Severity

低

Patch Name

BigBlueButton Greenlight跨站脚本漏洞的补丁

Patch Description

BigBlueButton是BigBlueButton社区的一套开源的Web会议系统。 BigBlueButton Greenlight 2.7.6版本存在跨站脚本漏洞，该漏洞源于admin .js的“merge account”功能存在跨站脚本(XSS)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/bigbluebutton/greenlight/pull/2214

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-27642

Impacted products

Name
BigBlueButton BigBlueButton Greenlight 2.7.6

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-27642",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-27642"
    }
  },
  "description": "BigBlueButton\u662fBigBlueButton\u793e\u533a\u7684\u4e00\u5957\u5f00\u6e90\u7684Web\u4f1a\u8bae\u7cfb\u7edf\u3002\n\nBigBlueButton Greenlight 2.7.6\u7248\u672c\u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eadmin .js\u7684\u201cmerge account\u201d\u529f\u80fd\u5b58\u5728\u8de8\u7ad9\u811a\u672c(XSS)\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/bigbluebutton/greenlight/pull/2214",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-60335",
  "openTime": "2020-11-03",
  "patchDescription": "BigBlueButton\u662fBigBlueButton\u793e\u533a\u7684\u4e00\u5957\u5f00\u6e90\u7684Web\u4f1a\u8bae\u7cfb\u7edf\u3002\r\n\r\nBigBlueButton Greenlight 2.7.6\u7248\u672c\u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eadmin .js\u7684\u201cmerge account\u201d\u529f\u80fd\u5b58\u5728\u8de8\u7ad9\u811a\u672c(XSS)\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": "BigBlueButton Greenlight\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "BigBlueButton BigBlueButton Greenlight 2.7.6"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-27642",
  "serverity": "\u4f4e",
  "submitTime": "2020-10-25",
  "title": "BigBlueButton Greenlight\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e"
}

CVE-2020-27642 (GCVE-0-2020-27642)

Vulnerability from cvelistv5 – Published: 2020-10-22 12:56 – Updated: 2024-08-04 16:18

Summary

A cross-site scripting (XSS) vulnerability exists in the 'merge account' functionality in admins.js in BigBlueButton Greenlight 2.7.6.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

1 reference

URL	Tags
https://github.com/bigbluebutton/greenlight/pull/2214	x_refsource_MISC

Show details on NVD website

JSON

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        "providerMetadata": {
          "dateUpdated": "2024-08-04T16:18:45.476Z",
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          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/bigbluebutton/greenlight/pull/2214"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "vendor": "n/a",
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          "value": "A cross-site scripting (XSS) vulnerability exists in the \u0027merge account\u0027 functionality in admins.js in BigBlueButton Greenlight 2.7.6."
        }
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      "problemTypes": [
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              "description": "n/a",
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        "dateUpdated": "2020-10-22T12:56:56.000Z",
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        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/bigbluebutton/greenlight/pull/2214"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-27642",
          "STATE": "PUBLIC"
        },
        "affects": {
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              {
                "product": {
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                    {
                      "product_name": "n/a",
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                          {
                            "version_value": "n/a"
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                        ]
                      }
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                "vendor_name": "n/a"
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        "description": {
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              "url": "https://github.com/bigbluebutton/greenlight/pull/2214"
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          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
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    "datePublished": "2020-10-22T12:56:56.000Z",
    "dateReserved": "2020-10-22T00:00:00.000Z",
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  },
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}

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.
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CNVD-2020-60335

CVE-2020-27642 (GCVE-0-2020-27642)

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