cnvd - cnvd-2020-67633

cnvd-2020-67633

Vulnerability from cnvd

Title: BigBlueButton会议访问代码蛮力攻击漏洞

Description:

BigBlueButton是BigBlueButton社区的一套开源的Web会议系统。

BigBlueButton 2.2.29及更早版本存在会议访问代码蛮力攻击漏洞。该漏洞源于可以为受访问代码保护的会议输入无限数量的代码。攻击者可利用该漏洞进行蛮力攻击以破解访问代码。

Severity: 中

Patch Name: BigBlueButton会议访问代码蛮力攻击漏洞的补丁

Patch Description:

BigBlueButton是BigBlueButton社区的一套开源的Web会议系统。

BigBlueButton 2.2.29及更早版本存在会议访问代码蛮力攻击漏洞。该漏洞源于可以为受访问代码保护的会议输入无限数量的代码。攻击者可利用该漏洞进行蛮力攻击以破解访问代码。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/bigbluebutton/releases

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-29042

Impacted products

Name
BigBlueButton BigBlueButton <=2.2.29

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-29042",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-29042"
    }
  },
  "description": "BigBlueButton\u662fBigBlueButton\u793e\u533a\u7684\u4e00\u5957\u5f00\u6e90\u7684Web\u4f1a\u8bae\u7cfb\u7edf\u3002\n\nBigBlueButton 2.2.29\u53ca\u66f4\u65e9\u7248\u672c\u5b58\u5728\u4f1a\u8bae\u8bbf\u95ee\u4ee3\u7801\u86ee\u529b\u653b\u51fb\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u53ef\u4ee5\u4e3a\u53d7\u8bbf\u95ee\u4ee3\u7801\u4fdd\u62a4\u7684\u4f1a\u8bae\u8f93\u5165\u65e0\u9650\u6570\u91cf\u7684\u4ee3\u7801\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u8fdb\u884c\u86ee\u529b\u653b\u51fb\u4ee5\u7834\u89e3\u8bbf\u95ee\u4ee3\u7801\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/bigbluebutton/releases",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-67633",
  "openTime": "2020-11-30",
  "patchDescription": "BigBlueButton\u662fBigBlueButton\u793e\u533a\u7684\u4e00\u5957\u5f00\u6e90\u7684Web\u4f1a\u8bae\u7cfb\u7edf\u3002\r\n\r\nBigBlueButton 2.2.29\u53ca\u66f4\u65e9\u7248\u672c\u5b58\u5728\u4f1a\u8bae\u8bbf\u95ee\u4ee3\u7801\u86ee\u529b\u653b\u51fb\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u53ef\u4ee5\u4e3a\u53d7\u8bbf\u95ee\u4ee3\u7801\u4fdd\u62a4\u7684\u4f1a\u8bae\u8f93\u5165\u65e0\u9650\u6570\u91cf\u7684\u4ee3\u7801\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u8fdb\u884c\u86ee\u529b\u653b\u51fb\u4ee5\u7834\u89e3\u8bbf\u95ee\u4ee3\u7801\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\u4f1a\u8bae\u8bbf\u95ee\u4ee3\u7801\u86ee\u529b\u653b\u51fb\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "BigBlueButton BigBlueButton \u003c=2.2.29"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-29042",
  "serverity": "\u4e2d",
  "submitTime": "2020-11-27",
  "title": "BigBlueButton\u4f1a\u8bae\u8bbf\u95ee\u4ee3\u7801\u86ee\u529b\u653b\u51fb\u6f0f\u6d1e"
}

CVE-2020-29042 (GCVE-0-2020-29042)

Vulnerability from cvelistv5

Published

2020-11-26 17:51

Modified

2024-08-04 16:48

Severity ?

CWE

Summary

An issue was discovered in BigBlueButton through 2.2.29. A brute-force attack may occur because an unlimited number of codes can be entered for a meeting that is protected by an access code.

References

▼	URL	Tags
	https://github.com/bigbluebutton/bigbluebutton/releases	x_refsource_MISC
	https://cxsecurity.com/issue/WLB-2020110210	x_refsource_MISC
	http://packetstormsecurity.com/files/160238/BigBlueButton-2.2.29-Brute-Force.html	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T16:48:01.502Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/bigbluebutton/bigbluebutton/releases"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://cxsecurity.com/issue/WLB-2020110210"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/160238/BigBlueButton-2.2.29-Brute-Force.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An issue was discovered in BigBlueButton through 2.2.29. A brute-force attack may occur because an unlimited number of codes can be entered for a meeting that is protected by an access code."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-11-28T18:06:31",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/bigbluebutton/bigbluebutton/releases"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://cxsecurity.com/issue/WLB-2020110210"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://packetstormsecurity.com/files/160238/BigBlueButton-2.2.29-Brute-Force.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-29042",
          "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": "An issue was discovered in BigBlueButton through 2.2.29. A brute-force attack may occur because an unlimited number of codes can be entered for a meeting that is protected by an access code."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/bigbluebutton/bigbluebutton/releases",
              "refsource": "MISC",
              "url": "https://github.com/bigbluebutton/bigbluebutton/releases"
            },
            {
              "name": "https://cxsecurity.com/issue/WLB-2020110210",
              "refsource": "MISC",
              "url": "https://cxsecurity.com/issue/WLB-2020110210"
            },
            {
              "name": "http://packetstormsecurity.com/files/160238/BigBlueButton-2.2.29-Brute-Force.html",
              "refsource": "MISC",
              "url": "http://packetstormsecurity.com/files/160238/BigBlueButton-2.2.29-Brute-Force.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2020-29042",
    "datePublished": "2020-11-26T17:51:00",
    "dateReserved": "2020-11-24T00:00:00",
    "dateUpdated": "2024-08-04T16:48:01.502Z",
    "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