Medium severity · published Jun 2, 2022
CVE-2022-29235
BigBlueButton is an open source web conferencing system
5.3
CVSS
1.1%
EPSS
No
On KEV
Description
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 who is able to obtain the meeting identifier for a meeting on a server can find information related to an external video being shared, like the current timestamp and play/pause. The problem has been patched in versions 2.3.18 and 2.4-rc-6 by modifying the stream to send the data only for users in the meeting. There are currently no known workarounds.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 65% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BI
Bigbluebutton · Bigbluebutton
2.2.0 before 2.3.18; 2.4; 2.4; 2.4; 2.4; 2.4; +5 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-29235
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-29235
Patch
https://github.com/bigbluebutton/bigbluebutton/pull/13788
Patch
https://github.com/bigbluebutton/bigbluebutton/pull/14265
Release Notes
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.3.18
Release Notes
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6
Patch
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-x82p-j22f-v4q6
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