Vulnerability-Lookup

CNVD-2022-82634

Vulnerability from cnvd - Published: 2022-11-29

Title

BigBlueButton存在未明漏洞（CNVD-2022-82634）

Description

BigBlueButton是BigBlueButton社区的一套开源的Web会议系统。 BigBlueButton Greenlight存在安全漏洞，攻击者可利用该漏洞查看任何房间的设置。

Severity

中

Patch Name

BigBlueButton存在未明漏洞（CNVD-2022-82634）的补丁

Patch Description

BigBlueButton是BigBlueButton社区的一套开源的Web会议系统。 BigBlueButton Greenlight存在安全漏洞，攻击者可利用该漏洞查看任何房间的设置。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/bigbluebutton/greenlight/security/advisories/GHSA-phh8-3v6v-7498

Reference

https://github.com/bigbluebutton/greenlight/security/advisories/GHSA-phh8-3v6v-7498

Impacted products

Name
BigBlueButton greenlight <2.12.6

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2022-31039",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2022-31039"
    }
  },
  "description": "BigBlueButton\u662fBigBlueButton\u793e\u533a\u7684\u4e00\u5957\u5f00\u6e90\u7684Web\u4f1a\u8bae\u7cfb\u7edf\u3002\n\nBigBlueButton Greenlight\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u67e5\u770b\u4efb\u4f55\u623f\u95f4\u7684\u8bbe\u7f6e\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/bigbluebutton/greenlight/security/advisories/GHSA-phh8-3v6v-7498",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-82634",
  "openTime": "2022-11-29",
  "patchDescription": "BigBlueButton\u662fBigBlueButton\u793e\u533a\u7684\u4e00\u5957\u5f00\u6e90\u7684Web\u4f1a\u8bae\u7cfb\u7edf\u3002\r\n\r\nBigBlueButton Greenlight\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u67e5\u770b\u4efb\u4f55\u623f\u95f4\u7684\u8bbe\u7f6e\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\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2022-82634\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "BigBlueButton greenlight \u003c2.12.6"
  },
  "referenceLink": "https://github.com/bigbluebutton/greenlight/security/advisories/GHSA-phh8-3v6v-7498",
  "serverity": "\u4e2d",
  "submitTime": "2022-06-30",
  "title": "BigBlueButton\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2022-82634\uff09"
}

CVE-2022-31039 (GCVE-0-2022-31039)

Vulnerability from cvelistv5 – Published: 2022-06-27 19:25 – Updated: 2025-04-23 18:07

Title

Improper privilege management - Anyone can view room settings in GreenLight

Summary

Greenlight is a simple front-end interface for your BigBlueButton server. In affected versions an attacker can view any room's settings even though they are not authorized to do so. Only the room owner and administrator should be able to view a room's settings. This issue has been patched in release version 2.12.6.

Severity

4.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-23 14:04 UTC

CWE

CWE-269 - Improper Privilege Management

Assigner

GitHub_M mitre root Scorecard

References

2 references

URL	Tags
https://github.com/bigbluebutton/greenlight/secur…	x_refsource_CONFIRM
https://github.com/bigbluebutton/greenlight/pull/3508	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
bigbluebutton	greenlight	Affected: < 2.12.6

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T07:03:40.228Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/bigbluebutton/greenlight/security/advisories/GHSA-phh8-3v6v-7498"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/bigbluebutton/greenlight/pull/3508"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2022-31039",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-23T14:04:40.869036Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-23T18:07:57.100Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "greenlight",
          "vendor": "bigbluebutton",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.12.6"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Greenlight is a simple front-end interface for your BigBlueButton server. In affected versions an attacker can view any room\u0027s settings even though they are not authorized to do so. Only the room owner and administrator should be able to view a room\u0027s settings. This issue has been patched in release version 2.12.6."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-269",
              "description": "CWE-269: Improper Privilege Management",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-06-27T19:25:12.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/bigbluebutton/greenlight/security/advisories/GHSA-phh8-3v6v-7498"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/bigbluebutton/greenlight/pull/3508"
        }
      ],
      "source": {
        "advisory": "GHSA-phh8-3v6v-7498",
        "discovery": "UNKNOWN"
      },
      "title": "Improper privilege management - Anyone can view room settings in GreenLight",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2022-31039",
          "STATE": "PUBLIC",
          "TITLE": "Improper privilege management - Anyone can view room settings in GreenLight"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "greenlight",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003c 2.12.6"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "bigbluebutton"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Greenlight is a simple front-end interface for your BigBlueButton server. In affected versions an attacker can view any room\u0027s settings even though they are not authorized to do so. Only the room owner and administrator should be able to view a room\u0027s settings. This issue has been patched in release version 2.12.6."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
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        "problemtype": {
          "problemtype_data": [
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              "description": [
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                  "lang": "eng",
                  "value": "CWE-269: Improper Privilege Management"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/bigbluebutton/greenlight/security/advisories/GHSA-phh8-3v6v-7498",
              "refsource": "CONFIRM",
              "url": "https://github.com/bigbluebutton/greenlight/security/advisories/GHSA-phh8-3v6v-7498"
            },
            {
              "name": "https://github.com/bigbluebutton/greenlight/pull/3508",
              "refsource": "MISC",
              "url": "https://github.com/bigbluebutton/greenlight/pull/3508"
            }
          ]
        },
        "source": {
          "advisory": "GHSA-phh8-3v6v-7498",
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2022-31039",
    "datePublished": "2022-06-27T19:25:12.000Z",
    "dateReserved": "2022-05-18T00:00:00.000Z",
    "dateUpdated": "2025-04-23T18:07:57.100Z",
    "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-2022-82634

CVE-2022-31039 (GCVE-0-2022-31039)

Tags

Sightings

Nomenclature

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