Improper Preservation of Permissions in BigBlueButton



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-41963
CWE-ID CWE-281
Exploitation vector Network
Public exploit N/A
Vulnerable software
 BigBlueButton
Web applications / Modules and components for CMS

Vendor Blindside Networks

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Improper Preservation of Permissions

EUVDB-ID: #VU70688

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-41963

CWE-ID: CWE-281 - Improper preservation of permissions

Exploit availability: No

Description

The vulnerability allows a remote user to compromise the target system.

The vulnerability exists due to improper preservation of permissions in the whiteboard. A remote administrator can take actions in the few seconds after their access was revoked.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

BigBlueButton: 2.4.0 - 2.4.2

CPE2.3 External links

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


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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