CVE Vulnerability

CVE-2022-41960

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.

4.3 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References
Link Resource
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.5-alpha-1 Release Notes Third Party Advisory
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.3 Release Notes Third Party Advisory
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-rgjp-3r74-g4cm Release Notes Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*
Information

Published : 2022-12-16 12:15

Updated : 2022-12-20 07:07

NVD link : CVE-2022-41960

Mitre link : CVE-2022-41960

Products Affected
No products.
CWE
CWE-345