CVE-2022-29233
Improper access control for breakout rooms in BigBlue Button
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 4.3EPSS 1.0%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
01 Jun 2022Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
BigBlueButton is an open source web conferencing system. In BigBlueButton starting with 2.2 but before 2.3.18 and 2.4-rc-1, an attacker can circumvent access controls to gain access to all breakout rooms of the meeting they are in. The permission checks rely on knowledge of internal ids rather than on verification of the role of the user. Versions 2.3.18 and 2.4-rc-1 contain a patch for this issue. 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
Affected products
bigbluebutton · bigbluebuttonWant to know if your infrastructure is exposed to this?
Talk to TrueHacking →References
https://github.com/bigbluebutton/bigbluebutton/pull/13117https://github.com/bigbluebutton/bigbluebutton/pull/14265https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-1https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-3mr9-p9gw-cf33