Insufficient verification of data authenticity in BigBlueButton - CVE-2022-41960
Published: December 20, 2022
Vulnerability identifier: #VU70450
CSH Severity: Low
CVSS v4: 5.3 [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]
CVE-ID: CVE-2022-41960
CWE-ID: CWE-345
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
BigBlueButton
How to mitigate CVE-2022-41960
Install updates from vendor's website.
BigBlueButton - update to 2.4.3