#VU75115 Missing Authorization in Matrix Javascript SDK - CVE-2023-29529

Vulnerability identifier: #VU75115

Vulnerability risk: Medium

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

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
https://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.