Missing Authorization in Matrix Javascript SDK

Published: 2023-04-14

Risk	Medium
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2023-29529
CWE-ID	CWE-862
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Matrix Javascript SDK Web applications / JS libraries
Vendor	Matrix.org

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Missing Authorization

EUVDB-ID: #VU75115

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 - Missing Authorization

Exploit availability: No

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

External links

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.