Vulnerability identifier: #VU75115

Vulnerability risk: Medium

CVSSv3.1: 4.4 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-29529

CWE-ID: CWE-862

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Matrix Javascript SDK
Web applications / JS libraries

Vendor: Matrix.org

Description

The vulnerability allows a remote attacker to bypass authorization checks.

The vulnerability exists due to invisible eavesdropping in group calls. A remote user can eavesdrop on the video and audio of participants.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Matrix Javascript SDK: 24.0.0

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External links
http://github.com/matrix-org/matrix-js-sdk/security/advisories/GHSA-6g67-q39g-r79q

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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.