{"containers": {"cna": {"title": "Improper access control for pencil annotations in BigBlueButton", "problemTypes": [{"descriptions": [{"cweId": "CWE-285", "lang": "en", "description": "CWE-285: Improper Authorization", "type": "CWE"}]}], "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"}}], "references": [{"name": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-p93g-r9gm-9v6r", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-p93g-r9gm-9v6r"}, {"name": "https://github.com/bigbluebutton/bigbluebutton/pull/13803", "tags": ["x_refsource_MISC"], "url": "https://github.com/bigbluebutton/bigbluebutton/pull/13803"}, {"name": "https://github.com/bigbluebutton/bigbluebutton/pull/14265", "tags": ["x_refsource_MISC"], "url": "https://github.com/bigbluebutton/bigbluebutton/pull/14265"}, {"name": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18", "tags": ["x_refsource_MISC"], "url": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18"}, {"name": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6", "tags": ["x_refsource_MISC"], "url": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6"}], "affected": [{"vendor": "bigbluebutton", "product": "bigbluebutton", "versions": [{"version": ">= 2.2, < 2.3.18", "status": "affected"}, {"version": ">= 2.4-alpha-1, < 2.4-rc-6", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2024-03-08T18:44:12.855Z"}, "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."}], "source": {"advisory": "GHSA-p93g-r9gm-9v6r", "discovery": "UNKNOWN"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T06:17:54.254Z"}, "title": "CVE Program Container", "references": [{"name": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-p93g-r9gm-9v6r", "tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-p93g-r9gm-9v6r"}, {"name": "https://github.com/bigbluebutton/bigbluebutton/pull/13803", "tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/bigbluebutton/bigbluebutton/pull/13803"}, {"name": "https://github.com/bigbluebutton/bigbluebutton/pull/14265", "tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/bigbluebutton/bigbluebutton/pull/14265"}, {"name": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18", "tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18"}, {"name": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6", "tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6"}]}]}, "cveMetadata": {"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2022-29236", "datePublished": "2022-06-01T23:25:12.000Z", "dateReserved": "2022-04-13T00:00:00.000Z", "dateUpdated": "2024-08-03T06:17:54.254Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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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. 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