← Volver a CVEs

CVE-2021-40824

MEDIUM

5.9

Descripcion

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.

Detalles CVE

Puntuacion CVSS v3.15.9

SeveridadMEDIUM

Vector CVSSCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Vector de ataqueNETWORK

ComplejidadHIGH

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado9/13/2021

Ultima modificacion11/21/2024

Fuentenvd

Avistamientos honeypot0

Productos afectados

matrix:elementmatrix:matrix-android-sdk2

Debilidades (CWE)

CWE-290

Referencias

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)

Correlaciones IOC

Sin correlaciones registradas

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