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CVE-2024-38518

4.6 · MEDIUM

BigBlueButton is an open-source virtual classroom designed to help teachers teach and learners learn.

Published Jun 28, 2024CWE-284EPSS 0.31%

Overview

CVE-2024-38518 is a medium-severity vulnerability. It was published on June 28, 2024 and has a CVSS 3.1 base score of 4.6 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.6, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/bigbluebutton/bigbluebutton/commit/a9d436accdcd26ea66bed9f391488ac128cd62d1GitHubgithub.com/bigbluebutton/bigbluebutton/commit/ea6e9461dceae8fa593543d8c686f77bb8677e72GitHubgithub.com/bigbluebutton/bigbluebutton/pull/20279GitHubgithub.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-4m48-49h7-f3c4GitHubgithub.com/bigbluebutton/bigbluebutton/commit/a9d436accdcd26ea66bed9f391488ac128cd62d1GitHubgithub.com/bigbluebutton/bigbluebutton/commit/ea6e9461dceae8fa593543d8c686f77bb8677e72GitHubgithub.com/bigbluebutton/bigbluebutton/pull/20279GitHubgithub.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-4m48-49h7-f3c4

How CyberStrike helps

Frequently asked questions

What is CVE-2024-38518?

CVE-2024-38518 is a medium-severity vulnerability. It was published on June 28, 2024 and has a CVSS 3.1 base score of 4.6 (MEDIUM).

How severe is CVE-2024-38518?

This vulnerability has a CVSS 3.1 base score of 4.6, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-38518?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-38518?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-38518 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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