Vulnerability · Published Dec 16, 2022 · Assigned by GitHub_M

CVE-2022-41963BigBlueButton contains Improper Preservation of Permissions for whiteboard

Low 2.7

In plain English

A low-severity security flaw 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 0.5% (higher than 39% of all known vulnerabilities).

Severity (CVSS 3.1)2.7Low

Exploit odds (30 days)0.5%top 60.5% 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 2.4.3 contain a whiteboard grace period that exists to handle delayed messages, but this grace period could be used by attackers to take actions in the few seconds after their access is revoked. The attacker must be a meeting participant. This issue is patched in version 2.4.3 an version 2.5-alpha-1

Affected products (as reported)

Vendor	Product	Versions
bigbluebutton	bigbluebutton	< 2.4.3

Weakness: CWE-281 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N

References

https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-v6p9-926c-6qfp x_refsource_CONFIRM
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4.3 x_refsource_MISC