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CVE-2021-40824

MEDIUM

5.9

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.15.9

SeveridadeMEDIUM

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

Vetor de ataqueNETWORK

ComplexidadeHIGH

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado9/13/2021

Ultima modificacao11/21/2024

Fontenvd

Avistamentos honeypot0

Produtos afetados

matrix:elementmatrix:matrix-android-sdk2

Fraquezas (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)

Correlacoes IOC

Sem correlacoes registradas

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