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CVE-2022-41960

4.3 · MEDIUM

BigBlueButton is an open source web conferencing system.

Published Dec 16, 2022CWE-345EPSS 0.39%

Overview

CVE-2022-41960 is a medium-severity vulnerability. It was published on December 16, 2022 and has a CVSS 3.1 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.3, 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 web conferencing system. Versions prior to 2.4.3, are subject to Insufficient Verification of Data Authenticity, resulting in Denial of Service. An attacker can make a Meteor call to `validateAuthToken` using a victim's userId, meetingId, and an invalid authToken. This forces the victim to leave the conference, because the resulting verification failure is also observed and handled by the victim's client. The attacker must be a participant in any meeting on the server. This issue is patched in version 2.4.3. There are no workarounds.

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/releases/tag/v2.4.3GitHubgithub.com/bigbluebutton/bigbluebutton/releases/tag/v2.5-alpha-1GitHubgithub.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-rgjp-3r74-g4cmGitHubgithub.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.3GitHubgithub.com/bigbluebutton/bigbluebutton/releases/tag/v2.5-alpha-1GitHubgithub.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-rgjp-3r74-g4cm

How CyberStrike helps

Frequently asked questions

What is CVE-2022-41960?

CVE-2022-41960 is a medium-severity vulnerability. It was published on December 16, 2022 and has a CVSS 3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2022-41960?

This vulnerability has a CVSS 3.1 base score of 4.3, 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-2022-41960?

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-2022-41960?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-41960 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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