BigBlueButton is an open-source virtual classroom. Prior to 3.0.23, BigBlueButton allowed authenticated moderators to inject SQL through the meetingId and userId values used by refreshBreakoutRoomsVisibleForUsers in akka-bbb-apps/src/main/scala/org/bigbluebutton/core/db/BreakoutRoomUserDAO.scala. The method interpolated those values into breakout room visibility queries, allowing arbitrary SQL execution against the application database.
This issue is fixed in version 3.0.23.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
Low
Partial disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 3
https://github.com/bigbluebutton/bigbluebutton/commit/3365e340e0c102de0f8ea007c…
security-advisories@github.com
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v3.0.23
security-advisories@github.com
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-gfv2-46…
security-advisories@github.com