{"id":"GHSA-qcvh-p9jq-wp8v","summary":"Malicious homeservers can steal message keys when the matrix-react-sdk user invites another user to a room","details":"### Impact\n\nmatrix-react-sdk before 3.102.0 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.\n\n### Patches\n\nmatrix-react-sdk 3.102.0 [disables sharing message keys on invite](https://github.com/matrix-org/matrix-react-sdk/pull/12618) by removing calls to the vulnerable functionality.\n\n### Workarounds\n\nNone.\n\n### References\n\nThe vulnerability in matrix-react-sdk is caused by calling `MatrixClient.sendSharedHistoryKeys` in matrix-js-sdk, which is inherently vulnerable to this sort of attack. This matrix-js-sdk vulnerability is tracked as CVE-2024-47080 / [GHSA-4jf8-g8wp-cx7c](https://github.com/matrix-org/matrix-js-sdk/security/advisories/GHSA-4jf8-g8wp-cx7c). Given that this functionality is not specific to sharing message keys on *invite*, is optional, has to be explicitly called by the caller and has been independently patched in matrix-react-sdk by removing the offending calls, we believe it is proper to treat the matrix-react-sdk vulnerability as a separate one, with its own advisory and CVE.\n\nThe matrix-org/matrix-react-sdk repository has recently been archived and the project was moved to [element-hq/matrix-react-sdk](https://github.com/element-hq/matrix-react-sdk). Given that this happened *after* the first patched release, no releases of the project on [element-hq/matrix-react-sdk](https://github.com/element-hq/matrix-react-sdk) were ever vulnerable to this vulnerability.\n\nPatching pull request: https://github.com/matrix-org/matrix-react-sdk/pull/12618.\n\n### For more information\n\nIf you have any questions or comments about this advisory, please email us at security at [security at matrix.org](mailto:security@matrix.org).\n","aliases":["CVE-2024-47824"],"modified":"2024-10-16T02:27:29.688260Z","published":"2024-10-15T18:11:51Z","database_specific":{"cwe_ids":["CWE-200"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2024-10-15T18:11:51Z","nvd_published_at":"2024-10-15T16:15:05Z"},"references":[{"type":"WEB","url":"https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-qcvh-p9jq-wp8v"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-47824"},{"type":"WEB","url":"https://github.com/matrix-org/matrix-react-sdk/pull/12618"},{"type":"WEB","url":"https://github.com/matrix-org/matrix-react-sdk/commit/6fc9d7641c51ca3db8225cf58b9d6e6fdd2d6556"},{"type":"PACKAGE","url":"https://github.com/matrix-org/matrix-react-sdk"}],"affected":[{"package":{"name":"matrix-react-sdk","ecosystem":"npm","purl":"pkg:npm/matrix-react-sdk"},"ranges":[{"type":"SEMVER","events":[{"introduced":"3.18.0"},{"fixed":"3.102.0"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/10/GHSA-qcvh-p9jq-wp8v/GHSA-qcvh-p9jq-wp8v.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:N"},{"type":"CVSS_V4","score":"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"}]}