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 Version 2.4 Update alpha1
BigBlueButton ≫ BigBlueButton Version 2.4 Update alpha2
BigBlueButton ≫ BigBlueButton Version 2.4 Update beta1
BigBlueButton ≫ BigBlueButton Version 2.4 Update beta2
BigBlueButton ≫ BigBlueButton Version 2.4 Update beta3
BigBlueButton ≫ BigBlueButton Version 2.4 Update beta4
BigBlueButton ≫ BigBlueButton Version 2.4 Update rc1
BigBlueButton ≫ BigBlueButton Version 2.4 Update rc3
BigBlueButton ≫ BigBlueButton Version 2.4 Update rc4
BigBlueButton ≫ BigBlueButton Version 2.4 Update rc5
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 0.85% 0.552
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 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
NIST 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