CVE-2022-29234: medium-severity vulnerability in bigbluebutton
Grace period for lock settings in public/private chats in BigBlueButton
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.3epss 0.9%
BigBlueButton is an open source web conferencing system. Starting in version 2.2 and prior to versions 2.3.18 and 2.4.1, an attacker could send messages to a locked chat within a grace period of 5s any lock setting in the meeting was changed. The attacker needs to be a participant in the meeting. Versions 2.3.18 and 2.4.1 contain a patch for this issue. There are currently no known workarounds.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Affected products
bigbluebutton · bigbluebuttonRelated CVEs — bigbluebutton
In the same product, most dangerous first.
CVE-2022-29169HIGHReDoS on endpoint html5client/useragent in BigBlueButtonEPSS 1.6%CVE-2022-31064MEDIUMCross site scripting in username that will trigger by sending chatEPSS 1.3%CVE-2022-29232MEDIUMExposure of messages in BigBlueButton public chatsEPSS 1.1%CVE-2022-29235MEDIUMLimited data exposure for shared external videos in BigBlueButtonEPSS 1.1%CVE-2022-29233MEDIUMImproper access control for breakout rooms in BigBlue ButtonEPSS 1.1%CVE-2022-29236MEDIUMImproper access control for pencil annotations in BigBlueButtonEPSS 0.9%
References
https://github.com/bigbluebutton/bigbluebutton/pull/13850https://github.com/bigbluebutton/bigbluebutton/pull/14265https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.1https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-36vc-c338-6xjv