Insufficient verification of data authenticity in BigBlueButton - CVE-2022-41960

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Main Vulnerability Database Vulnerabilities #VU70450

Insufficient verification of data authenticity in BigBlueButton - CVE-2022-41960

Published: December 20, 2022


Vulnerability identifier: #VU70450
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-41960
CWE-ID: CWE-345
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
BigBlueButton
Software vendor:
Blindside Networks

Description

The vulnerability allows a remote user to disconnect other users.

The vulnerability exists due to insufficient verification of data authenticity. A remote user can initiate a Meteor call to `validateAuthToken` using a victim's userId, meetingId, and an invalid authToken, which will result in disconnecting the victim user from the current conference.


Remediation

Install updates from vendor's website.

External links