SB2024101651 - Missing authorization in Matrix Javascript SDK



SB2024101651 - Missing authorization in Matrix Javascript SDK

Published: October 16, 2024

Security Bulletin ID SB2024101651
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Missing Authorization (CVE-ID: CVE-2024-47080)

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

The vulnerability exists due to the way the MatrixClient.sendSharedHistoryKeys method shares historical message keys with newly invited users. A remote attacker can inject their own devices to receive sensitive historical keys and access past messages in the room without proper security checks.


Remediation

Install update from vendor's website.