4.3

CVE-2022-29236

Improper access control for pencil annotations in BigBlueButton

Improper access control for pencil annotations

BigBlueButton is an open source web conferencing system. Starting in version 2.2 and prior to versions 2.3.18 and 2.4-rc-6, an attacker can circumvent access restrictions for drawing on the whiteboard. The permission check is inadvertently skipped on the server, due to a previously introduced grace period. The attacker must be a meeting participant. The problem has been patched in versions 2.3.18 and 2.4-rc-6. There are currently no known workarounds.
Mögliche Gegenmaßnahme
Server: No workaround.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
BigBlueButton ≫ BigBlueButton Version >= 2.2.0 < 2.3.18
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, < 2.3.18
Version >= 2.4-rc-6.0, < 2.4-rc-6
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.81% 0.521
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:L/I:N/A:N
nvd@nist.gov 4 8 2.9
AV:N/AC:L/Au:S/C:P/I:N/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:L/I:N/A:N
CWE-285 Improper Authorization

The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.

https://github.com/bigbluebutton/bigbluebutton/pull/14265
Patch
Third Party Advisory
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18
Third Party Advisory
Release Notes
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6
Third Party Advisory
Release Notes
https://github.com/bigbluebutton/bigbluebutton/pull/13803
Patch
Third Party Advisory
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-p93g-r9gm-9v6r
Patch
Third Party Advisory
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-p93g-r9gm-9v6r
Third Party Advisory