Description (CNA)
BigBlueButton is an open-source virtual classroom designed to help teachers teach and learners learn. An attacker with a valid join link to a meeting can trick BigBlueButton into generating a signed join link with additional parameters. One of those parameters may be "role=moderator", allowing an attacker to join a meeting as moderator using a join link that was originally created for viewer access. This vulnerability has been patched in version(s) 2.6.18, 2.7.8 and 3.0.0-alpha.7.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| bigbluebutton / bigbluebutton | affected < 2.6.18; affected >= 2.7.0, < 2.7.8; affected >= 2.8.0, < 3.0.0-alpha.7 |
CWE
CWE-284
References
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-4m48-49h7-f3c4
- https://github.com/bigbluebutton/bigbluebutton/pull/20279
- https://github.com/bigbluebutton/bigbluebutton/commit/a9d436accdcd26ea66bed9f391488ac128cd62d1
- https://github.com/bigbluebutton/bigbluebutton/commit/ea6e9461dceae8fa593543d8c686f77bb8677e72
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
- https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-4m48-49h7-f3c4
- https://github.com/bigbluebutton/bigbluebutton/pull/20279
- https://github.com/bigbluebutton/bigbluebutton/commit/a9d436accdcd26ea66bed9f391488ac128cd62d1
- https://github.com/bigbluebutton/bigbluebutton/commit/ea6e9461dceae8fa593543d8c686f77bb8677e72