CVE-2022-29233

Improper access control for breakout rooms in BigBlue Button

Description

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.

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.10%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: bigbluebutton bigbluebutton
Published at:
Updated at:

References

Link Tags
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-3mr9-p9gw-cf33 third party advisory patch
https://github.com/bigbluebutton/bigbluebutton/pull/13117 third party advisory patch
https://github.com/bigbluebutton/bigbluebutton/pull/14265 third party advisory patch
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18 third party advisory release notes
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-1 third party advisory release notes

Frequently Asked Questions

What is the severity of CVE-2022-29233?
CVE-2022-29233 has been scored as a medium severity vulnerability.
How to fix CVE-2022-29233?
To fix CVE-2022-29233, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-29233 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-29233 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-29233?
CVE-2022-29233 affects bigbluebutton bigbluebutton.
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