#VU70686 Insufficient verification of data authenticity in BigBlueButton - CVE-2022-41961

Vulnerability identifier: #VU70686

Vulnerability risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-41961

CWE-ID: CWE-345

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
BigBlueButton
Web applications / Modules and components for CMS

Vendor: Blindside Networks

Description

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

The vulnerability exists due to insufficient verification of data authenticity. A remote user can register multiple users and join the meeting with one of them.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

BigBlueButton: before 2.4

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External links
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.5-alpha-1
https://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.4-rc-6
https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-wxjp-h88g-7fqg

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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