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CVE-2024-38518

bbb-web API additional parameters considered

Published: Jun 28, 2024Updated: Nov 21, 2024 Sources: CVE List NVDCWE-284
NVD MITRE
4.6CVSSMEDIUM
EPSS Score
0.3%
Top 77.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:RS:UC:LI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-284

Affected Products

bigbluebuttonbigbluebutton
On-premWeb App
Communications / video-conferencing
bigbluebuttonoss-projectCommunicationsaka bbb

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-4m48-49h7-f3c4
github.com
https://github.com/bigbluebutton/bigbluebutton/pull/20279
github.com
https://github.com/bigbluebutton/bigbluebutton/commit/a9d436accdcd26ea66bed9f391488ac128cd62d1
github.com
and 1 more references View all →

Timeline

Published
Jun 28, 2024
Last Updated
Nov 21, 2024

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