CVE-2022-29236

Improper access control for pencil annotations in BigBlueButton

CVSS 4.3 MEDIUMEPSS 0.8%CWE-285

Vexday Risk Score

13Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS 4.3EPSS 0.8%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

01 jun 2022Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

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.

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

Productos afectados

bigbluebutton · bigbluebutton

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Referencias

https://github.com/bigbluebutton/bigbluebutton/pull/13803 https://github.com/bigbluebutton/bigbluebutton/pull/14265 https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18 https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6 https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-p93g-r9gm-9v6r