Vulnerability identifier: #VU27390

Vulnerability risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-12112

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: Yes

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

Vendor: Blindside Networks

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to Local File Inclusion. A remote attacker can gain unauthorized access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

BigBlueButton: 2.2.4

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External links
http://github.com/bigbluebutton/bigbluebutton/compare/v2.2.4...v2.2.5
http://twitter.com/bigbluebutton/status/1252706369486180353
http://twitter.com/thibeault_chenu/status/1249976515917422593

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.