High severity · published Dec 17, 2022
CVE-2022-23488
BigBlueButton is an open source web conferencing system
7.5
CVSS
0.6%
EPSS
No
On KEV
Description
BigBlueButton is an open source web conferencing system. Versions prior to 2.4-rc-6 are vulnerable to Insertion of Sensitive Information Into Sent Data. The moderators-only webcams lock setting is not enforced on the backend, which allows an attacker to subscribe to viewers' webcams, even when the lock setting is applied. (The required streamId was being sent to all users even with lock setting applied). This issue is fixed in version 2.4-rc-6. There are no workarounds.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BI
Bigbluebutton · Bigbluebutton
before 2.4; 2.4; 2.4; 2.4; 2.4; 2.4; +6 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-23488
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-23488
Release Notes
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6
Patch
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-j5g3-f74q-rvfq
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