Man-in-the-Middle (MitM) Affecting org.matrix.android:matrix-android-sdk2 package, versions [,1.2.2)
Snyk CVSS
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Test your applications- Snyk ID SNYK-JAVA-ORGMATRIXANDROID-1586044
- published 17 Sep 2021
- disclosed 17 Sep 2021
- credit Unknown
Introduced: 17 Sep 2021
CVE-2021-40824 Open this link in a new tabHow to fix?
Upgrade org.matrix.android:matrix-android-sdk2
to version 1.2.2 or higher.
Overview
org.matrix.android:matrix-android-sdk2 is a Matrix SDK for Android, extracted from the Element Android application.
Affected versions of this package are vulnerable to Man-in-the-Middle (MitM). A logic error in the room key sharing functionality allows a malicious Matrix homeserver present in an encrypted room to steal room encryption keys (via crafted Matrix protocol messages) that were originally sent by affected Matrix clients participating in that room. This allows the homeserver to decrypt end-to-end encrypted messages sent by affected clients.