CVE-2022-29233
MEDIUM severity · CVSS 4.3 · CWE-285
4.3CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactLow
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)1%
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://github.com/bigbluebutton/bigbluebutton/pull/13117 ↗
Additional information
- NVD record
- https://github.com/bigbluebutton/bigbluebutton/pull/13117Patch
- https://github.com/bigbluebutton/bigbluebutton/pull/14265Patch
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-3mr9-p9gw-cf33Patch
- https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18Advisory
- https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-1Advisory