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カテゴリ
CVE-2023-42453

Improper validation of receipts allows forged read receipts in matrix synapse

概要

Improper validation of receipts allows forged read receipts in matrix synapse

原文の説明

取得元が公開している説明をそのまま載せています (多くは英語)。

Synapse is an open-source Matrix homeserver written and maintained by the Matrix.org Foundation. Users were able to forge read receipts for any event (if they knew the room ID and event ID). Note that the users were not able to view the events, but simply mark it as read. This could be confusing as clients will show the event as read by the user, even if they are not in the room. This issue has been patched in version 1.93.0. Users are advised to upgrade. There are no known workarounds for this issue.

出典: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV

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