CVE-2024-47824

Malicious homeservers can steal message keys when the matrix-react-sdk user invites another user to a room

CVSS 8.7 HIGHEPSS 0.7%CWE-200

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.7EPSS 0.7%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

15 Oct 2024Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

matrix-react-sdk is react-based software development kit for inserting a Matrix chat/VOIP client into a web page. Starting in version 3.18.0 and before 3.102.0, matrix-react-sdk allows a malicious homeserver to potentially steal message keys for a room when a user invites another user to that room, via injection of a malicious device controlled by the homeserver. This is possible because matrix-react-sdk before 3.102.0 shared historical message keys on invite. Version 3.102.0 fixes this issue by disabling sharing message keys on invite by removing calls to the vulnerable functionality. No known workarounds are available.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Affected products

matrix-org · matrix-react-sdk

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →

References

https://github.com/matrix-org/matrix-react-sdk/commit/6fc9d7641c51ca3db8225cf58b9d6e6fdd2d6556 https://github.com/matrix-org/matrix-react-sdk/pull/12618 https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-qcvh-p9jq-wp8v