Vulnerability · Published Dec 17, 2022 · Assigned by GitHub_M

CVE-2022-23488BigBlueButton vulnerable to Insertion of Sensitive Information Into Sent Data

Medium 6.5

In plain English

A medium-severity information exposure in bigbluebutton from bigbluebutton. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.6%top 50.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
bigbluebutton	bigbluebutton	< 2.4-rc-6

Weakness: CWE-201, CWE-200 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-j5g3-f74q-rvfq x_refsource_CONFIRM
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6 x_refsource_MISC