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CVE-2021-40823

MEDIUM

5.9

Description

A logic error in the room key sharing functionality of matrix-js-sdk (aka Matrix Javascript SDK) before 12.4.1 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.

Details CVE

Score CVSS v3.15.9

SeveriteMEDIUM

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

Vecteur d'attaqueNETWORK

ComplexiteHIGH

Privileges requisNONE

Interaction utilisateurNONE

Publie9/13/2021

Derniere modification11/21/2024

Sourcenvd

Observations honeypot0

Produits affectes

matrix:javascript_sdk

Faiblesses (CWE)

CWE-290

References

https://github.com/matrix-org/matrix-js-sdk/releases/tag/v12.4.1(cve@mitre.org)

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

https://github.com/matrix-org/matrix-js-sdk/releases/tag/v12.4.1(af854a3a-2127-422b-91ae-364da2661108)

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

Correlations IOC

Aucune correlation enregistree

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