FKIE_CVE-2022-29236

Vulnerability from fkie_nvd - Published: 2022-06-02 00:15 - Updated: 2024-11-21 06:58
Severity ?
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Summary
BigBlueButton is an open source web conferencing system. Starting in version 2.2 and prior to versions 2.3.18 and 2.4-rc-6, an attacker can circumvent access restrictions for drawing on the whiteboard. The permission check is inadvertently skipped on the server, due to a previously introduced grace period. The attacker must be a meeting participant. The problem has been patched in versions 2.3.18 and 2.4-rc-6. There are currently no known workarounds.
References
security-advisories@github.comhttps://github.com/bigbluebutton/bigbluebutton/pull/13803Patch, Third Party Advisory
security-advisories@github.comhttps://github.com/bigbluebutton/bigbluebutton/pull/14265Patch, Third Party Advisory
security-advisories@github.comhttps://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18Release Notes, Third Party Advisory
security-advisories@github.comhttps://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6Release Notes, Third Party Advisory
security-advisories@github.comhttps://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-p93g-r9gm-9v6rPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/bigbluebutton/bigbluebutton/pull/13803Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/bigbluebutton/bigbluebutton/pull/14265Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-p93g-r9gm-9v6rPatch, Third Party Advisory
Impacted products
Vendor Product Version
bigbluebutton bigbluebutton *
bigbluebutton bigbluebutton 2.4
bigbluebutton bigbluebutton 2.4
bigbluebutton bigbluebutton 2.4
bigbluebutton bigbluebutton 2.4
bigbluebutton bigbluebutton 2.4
bigbluebutton bigbluebutton 2.4
bigbluebutton bigbluebutton 2.4
bigbluebutton bigbluebutton 2.4
bigbluebutton bigbluebutton 2.4
bigbluebutton bigbluebutton 2.4
To clipboard 

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              "matchCriteriaId": "60814A0D-57C0-4407-B7DD-26A9D5C3DBB1",
              "versionEndExcluding": "2.3.18",
              "versionStartIncluding": "2.2.0",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "BigBlueButton is an open source web conferencing system. Starting in version 2.2 and prior to versions 2.3.18 and 2.4-rc-6, an attacker can circumvent access restrictions for drawing on the whiteboard. The permission check is inadvertently skipped on the server, due to a previously introduced grace period. The attacker must be a meeting participant. The problem has been patched in versions 2.3.18 and 2.4-rc-6. There are currently no known workarounds."
    },
    {
      "lang": "es",
      "value": "BigBlueButton es un sistema de conferencias web de c\u00f3digo abierto. A partir de la versi\u00f3n 2.2 y versiones hasta 2.3.18 y 2.4-rc-6, un atacante puede omitir las restricciones de acceso para dibujar en la pizarra. La comprobaci\u00f3n de permisos es omitida inadvertidamente en el servidor, debido a un periodo de gracia introducido previamente. El atacante debe ser un participante de la reuni\u00f3n. El problema ha sido parcheado en versiones 2.3.18 y 2.4-rc-6. Actualmente no son conocidas mitigaciones"
    }
  ],
  "id": "CVE-2022-29236",
  "lastModified": "2024-11-21T06:58:46.737",
  "metrics": {
    "cvssMetricV2": [
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        "baseSeverity": "MEDIUM",
        "cvssData": {
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          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 4.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
          "version": "2.0"
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        "type": "Primary",
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  "published": "2022-06-02T00:15:08.483",
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          "value": "CWE-285"
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}


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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.
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  • 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.