GSD-2022-41960

Vulnerability from gsd - Updated: 2023-12-13 01:19
Details
BigBlueButton is an open source web conferencing system. Versions prior to 2.4.3, are subject to Insufficient Verification of Data Authenticity, resulting in Denial of Service. An attacker can make a Meteor call to `validateAuthToken` using a victim's userId, meetingId, and an invalid authToken. This forces the victim to leave the conference, because the resulting verification failure is also observed and handled by the victim's client. The attacker must be a participant in any meeting on the server. This issue is patched in version 2.4.3. There are no workarounds.
Aliases
Aliases
CVE-2022-41960
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{
  "GSD": {
    "alias": "CVE-2022-41960",
    "id": "GSD-2022-41960"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2022-41960"
      ],
      "details": "BigBlueButton is an open source web conferencing system. Versions prior to 2.4.3, are subject to Insufficient Verification of Data Authenticity, resulting in Denial of Service. An attacker can make a Meteor call to `validateAuthToken` using a victim\u0027s userId, meetingId, and an invalid authToken. This forces the victim to leave the conference, because the resulting verification failure is also observed and handled by the victim\u0027s client. The attacker must be a participant in any meeting on the server. This issue is patched in version 2.4.3. There are no workarounds.",
      "id": "GSD-2022-41960",
      "modified": "2023-12-13T01:19:32.870814Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2022-41960",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "bigbluebutton",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "\u003c 2.4.3"
                        }
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      "data_type": "CVE",
      "data_version": "4.0",
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            "value": "BigBlueButton is an open source web conferencing system. Versions prior to 2.4.3, are subject to Insufficient Verification of Data Authenticity, resulting in Denial of Service. An attacker can make a Meteor call to `validateAuthToken` using a victim\u0027s userId, meetingId, and an invalid authToken. This forces the victim to leave the conference, because the resulting verification failure is also observed and handled by the victim\u0027s client. The attacker must be a participant in any meeting on the server. This issue is patched in version 2.4.3. There are no workarounds."
          }
        ]
      },
      "impact": {
        "cvss": [
          {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          }
        ]
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      "problemtype": {
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          {
            "description": [
              {
                "cweId": "CWE-345",
                "lang": "eng",
                "value": "CWE-345: Insufficient Verification of Data Authenticity"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-rgjp-3r74-g4cm",
            "refsource": "MISC",
            "url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-rgjp-3r74-g4cm"
          },
          {
            "name": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.3",
            "refsource": "MISC",
            "url": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.3"
          },
          {
            "name": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.5-alpha-1",
            "refsource": "MISC",
            "url": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.5-alpha-1"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-rgjp-3r74-g4cm",
        "discovery": "UNKNOWN"
      }
    },
    "nvd.nist.gov": {
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        "nodes": [
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                "cpe23Uri": "cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2.4.3",
                "vulnerable": true
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            "operator": "OR"
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          "ID": "CVE-2022-41960"
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        "data_version": "4.0",
        "description": {
          "description_data": [
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              "lang": "en",
              "value": "BigBlueButton is an open source web conferencing system. Versions prior to 2.4.3, are subject to Insufficient Verification of Data Authenticity, resulting in Denial of Service. An attacker can make a Meteor call to `validateAuthToken` using a victim\u0027s userId, meetingId, and an invalid authToken. This forces the victim to leave the conference, because the resulting verification failure is also observed and handled by the victim\u0027s client. The attacker must be a participant in any meeting on the server. This issue is patched in version 2.4.3. There are no workarounds."
            }
          ]
        },
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        },
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          "reference_data": [
            {
              "name": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.5-alpha-1",
              "refsource": "MISC",
              "tags": [
                "Release Notes",
                "Third Party Advisory"
              ],
              "url": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.5-alpha-1"
            },
            {
              "name": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.3",
              "refsource": "MISC",
              "tags": [
                "Release Notes",
                "Third Party Advisory"
              ],
              "url": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.3"
            },
            {
              "name": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-rgjp-3r74-g4cm",
              "refsource": "MISC",
              "tags": [
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              "url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-rgjp-3r74-g4cm"
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        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2022-12-20T19:07Z",
      "publishedDate": "2022-12-16T00:15Z"
    }
  }
}


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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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.