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CVE-2021-40824

MEDIUM

5.9

Beschreibung

A logic error in the room key sharing functionality of Element Android before 1.2.2 and matrix-android-sdk2 (aka Matrix SDK for Android) before 1.2.2 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 attacker to decrypt end-to-end encrypted messages sent by affected clients.

CVE Details

CVSS v3.1 Bewertung5.9

SchweregradMEDIUM

CVSS VektorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

AngriffsvektorNETWORK

KomplexitatHIGH

Erforderliche PrivilegienNONE

BenutzerinteraktionNONE

Veroffentlicht9/13/2021

Zuletzt geandert11/21/2024

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

matrix:elementmatrix:matrix-android-sdk2

Schwachen (CWE)

CWE-290

Referenzen

https://github.com/matrix-org/matrix-android-sdk2/releases/tag/v1.2.2(cve@mitre.org)

https://matrix.org/blog/2021/09/13/vulnerability-disclosure-key-sharing(cve@mitre.org)

https://github.com/matrix-org/matrix-android-sdk2/releases/tag/v1.2.2(af854a3a-2127-422b-91ae-364da2661108)

https://matrix.org/blog/2021/09/13/vulnerability-disclosure-key-sharing(af854a3a-2127-422b-91ae-364da2661108)

IOC Korrelationen

Keine Korrelationen erfasst

This product uses data from the NVD API but is not endorsed or certified by the NVD.