CVE-2022-41961

BigBlueButton is an open source web conferencing system. Versions prior to 2.4-rc-6 are subject to Ineffective user bans. The attacker could register multiple users, and join the meeting with one of them. When that user is banned, they could still join the meeting with the remaining registered users from the same extId. This issue has been fixed by improving permissions such that banning a user removes all users related to their extId, including registered users that have not joined the meeting. This issue is patched in versions 2.4-rc-6 and 2.5-alpha-1. There are no workarounds.

CVSS v3.0 4.3 MEDIUM

4.3^/10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.5-alpha-1	Release Notes Third Party Advisory
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6	Release Notes Third Party Advisory
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-wxjp-h88g-7fqg	Patch Release Notes

Configurations

Configuration 1

cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:alpha1:*:*:*:*:*:*

cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:alpha2:*:*:*:*:*:*

cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:beta2:*:*:*:*:*:*

cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:beta1:*:*:*:*:*:*

cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:beta3:*:*:*:*:*:*

cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:beta4:*:*:*:*:*:*

cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:rc5:*:*:*:*:*:*

cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:rc4:*:*:*:*:*:*

cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:rc3:*:*:*:*:*:*

cpe:2.3:a:bigbluebutton:bigbluebutton:2.4:rc1:*:*:*:*:*:*

cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*

History

24 Jan 2023, 16:19

Type	Values Removed	Values Added
CPE		cpe:2.3:a:predictapp_project:predictapp::::::::
References	~~(MISC) https://github.com/abhilash1985/PredictApp/commit/b067372f3ee26fe1b657121f0f41883ff4461a06 -~~	(MISC) https://github.com/abhilash1985/PredictApp/commit/b067372f3ee26fe1b657121f0f41883ff4461a06 - Patch, Third Party Advisory
References	~~(MISC) https://github.com/abhilash1985/PredictApp/pull/73 -~~	(MISC) https://github.com/abhilash1985/PredictApp/pull/73 - Patch, Third Party Advisory
References	~~(MISC) https://vuldb.com/?id.218387 -~~	(MISC) https://vuldb.com/?id.218387 - Third Party Advisory
References	~~(MISC) https://vuldb.com/?ctiid.218387 -~~	(MISC) https://vuldb.com/?ctiid.218387 - Third Party Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 9.8
First Time		Predictapp Project predictapp Predictapp Project

16 Jan 2023, 13:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2022-12-16 01:15

Updated : 2022-12-20 07:09

NVD link : CVE-2022-41961

Mitre link : CVE-2022-41961

Products Affected

No products.

CWE

CWE-345

CWE-346