GSD-2022-41961

Vulnerability from gsd - Updated: 2023-12-13 01:19
Details
BigBlueButton is an open source web conferencing system. Versions prior to 2.4-rc-6 are subject to Ineffective user bans. The attacker could register multiple users, and join the meeting with one of them. When that user is banned, they could still join the meeting with the remaining registered users from the same extId. This issue has been fixed by improving permissions such that banning a user removes all users related to their extId, including registered users that have not joined the meeting. This issue is patched in versions 2.4-rc-6 and 2.5-alpha-1. There are no workarounds.
Aliases
Aliases
CVE-2022-41961
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{
  "GSD": {
    "alias": "CVE-2022-41961",
    "id": "GSD-2022-41961"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2022-41961"
      ],
      "details": "BigBlueButton is an open source web conferencing system. Versions prior to 2.4-rc-6 are subject to Ineffective user bans. The attacker could register multiple users, and join the meeting with one of them. When that user is banned, they could still join the meeting with the remaining registered users from the same extId. This issue has been fixed by improving permissions such that banning a user removes all users related to their extId, including registered users that have not joined the meeting. This issue is patched in versions 2.4-rc-6 and 2.5-alpha-1. There are no workarounds.",
      "id": "GSD-2022-41961",
      "modified": "2023-12-13T01:19:32.780380Z",
      "schema_version": "1.4.0"
    }
  },
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                  {
                    "product_name": "bigbluebutton",
                    "version": {
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                          "version_affected": "=",
                          "version_value": "\u003c v2.4-rc-6"
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          }
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            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
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            "confidentialityImpact": "NONE",
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                "value": "CWE-345: Insufficient Verification of Data Authenticity"
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          {
            "name": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6",
            "refsource": "MISC",
            "url": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6"
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        "discovery": "UNKNOWN"
      }
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          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2022-12-20T19:09Z",
      "publishedDate": "2022-12-16T13:15Z"
    }
  }
}


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  • 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.



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