CVE-2024-38518
bbb-web API additional parameters considered
- State
- Published
- Severity
- 4.6 Medium
- Published
- Jun 28, 2024
- Updated
- Aug 2, 2024
- Reserved
- Jun 18, 2024
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.6 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L | GitHub_M |
Weaknesses
- CWE-284 Improper Access Control
Affected Products
| Product | Versions |
|---|---|
bigbluebuttonbigbluebutton |
|
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
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