4.3

CVE-2022-41961

BigBlueButton subject to Ineffective user bans

Ineffective user bans

BigBlueButton is an open source web conferencing system. Versions prior to 2.4-rc-6 are subject to Ineffective user bans. The attacker could register multiple users, and join the meeting with one of them. When that user is banned, they could still join the meeting with the remaining registered users from the same extId. This issue has been fixed by improving permissions such that banning a user removes all users related to their extId, including registered users that have not joined the meeting. This issue is patched in versions 2.4-rc-6 and 2.5-alpha-1. There are no workarounds.
Mögliche Gegenmaßnahme
Server: No Workarounds.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
BigBlueButton ≫ BigBlueButton Version < 2.4
BigBlueButton ≫ BigBlueButton Version2.4 Updatealpha1
BigBlueButton ≫ BigBlueButton Version2.4 Updatealpha2
BigBlueButton ≫ BigBlueButton Version2.4 Updatebeta1
BigBlueButton ≫ BigBlueButton Version2.4 Updatebeta2
BigBlueButton ≫ BigBlueButton Version2.4 Updatebeta3
BigBlueButton ≫ BigBlueButton Version2.4 Updatebeta4
BigBlueButton ≫ BigBlueButton Version2.4 Updaterc1
BigBlueButton ≫ BigBlueButton Version2.4 Updaterc3
BigBlueButton ≫ BigBlueButton Version2.4 Updaterc4
BigBlueButton ≫ BigBlueButton Version2.4 Updaterc5
Weitere Schwachstelleninformationen
SystemBigBlueButton
≫
Produkt Server
Version >= 0.0.0, < 2.4-rc-6
Version >= 2.5-alpha-1.0, < 2.5-alpha-1
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.28% 0.196
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 4.3 2.8 1.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
security-advisories@github.com 4.3 2.8 1.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CWE-345 Insufficient Verification of Data Authenticity

The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.

CWE-346 Origin Validation Error

The product does not properly verify that the source of data or communication is valid.

https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6
Third Party Advisory
Release Notes
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.5-alpha-1
Third Party Advisory
Release Notes
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-wxjp-h88g-7fqg
Patch
Third Party Advisory
Release Notes
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-wxjp-h88g-7fqg
Third Party Advisory