CVE-2024-47080

描述

matrix-js-sdk is the Matrix Client-Server SDK for JavaScript and TypeScript. In matrix-js-sdk versions versions 9.11.0 through 34.7.0, the method `MatrixClient.sendSharedHistoryKeys` is vulnerable to interception by malicious homeservers. The method was introduced by MSC3061) and is commonly used to share historical message keys with newly invited users, granting them access to past messages in the room. However, it unconditionally sends these "shared" keys to all of the invited user's devices, regardless of whether the user's cryptographic identity is verified or whether the user's devices are signed by that identity. This allows the attacker to potentially inject its own devices to receive sensitive historical keys without proper security checks. Note that this only affects clients running the SDK with the legacy crypto stack. Clients using the new Rust cryptography stack (i.e. those that call `MatrixClient.initRustCrypto()` instead of `MatrixClient.initCrypto()`) are unaffected by this vulnerability, because `MatrixClient.sendSharedHistoryKeys()` raises an exception in such environments. The vulnerability was fixed in matrix-js-sdk 34.8.0 by removing the vulnerable functionality. As a workaround, remove use of affected functionality from clients.

如何修補 CVE-2024-47080

要修補 CVE-2024-47080,請將受影響套件升級到下列已修補版本。

• —未列出修補版本
• —升級至 34.8.0 或更新版本

CVE-2024-47080 正在被利用嗎?

低 — EPSS 為 0.7%,目前沒有觀察到大規模利用活動。

受影響套件(2)

• from 0
• >= 9.11.0, < 34.8.0

CVSS 分數

參考連結(6)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2024-47080
• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2024-47080
• PATCHgithub.com/matrix-org/matrix-js-sdk
• WEBgithub.com/matrix-org/matrix-js-sdk/commit/2fb1e659c81f75253c047832dc9dcc2beddfac5f