CVE-2024-36403— Matrix 安全漏洞
一分钟漏洞结论
影响对象
t2bot matrix-media-repo
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Matrix是一个雄心勃勃的新生态系统，用于开放联合即时消息和 VoIP。 Matrix存在安全漏洞，该漏洞源于磁盘消耗不受控制，从而导致拒绝服务。
可能的 ATT&CK 技术 1 AI
T1499 · Endpoint Denial of Service
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一、 漏洞 CVE-2024-36403 基础信息
漏洞信息
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Vulnerability Title
Denial of service/high operating costs through unauthenticated downloads in Matrix Media Repo
来源: CVE Program / CVE List V5
Vulnerability Description
Matrix Media Repo (MMR) is a highly configurable multi-homeserver media repository for Matrix. MMR before version 1.3.5 is vulnerable to unbounded disk consumption, where an unauthenticated adversary can induce it to download and cache large amounts of remote media files. MMR's typical operating environment uses S3-like storage as a backend, with file-backed store as an alternative option. Instances using a file-backed store or those which self-host an S3 storage system are therefore vulnerable to a disk fill attack. Once the disk is full, authenticated users will be unable to upload new media, resulting in denial of service. For instances configured to use a cloud-based S3 storage option, this could result in high service fees instead of a denial of service. MMR 1.3.5 introduces a new default-on "leaky bucket" rate limit to reduce the amount of data a user can request at a time. This does not fully address the issue, but does limit an unauthenticated user's ability to request large amounts of data. Operators should note that the leaky bucket implementation introduced in MMR 1.3.5 requires the IP address associated with the request to be forwarded, to avoid mistakenly applying the rate limit to the reverse proxy instead. To avoid this issue, the reverse proxy should populate the X-Forwarded-For header when sending the request to MMR. Operators who cannot update may wish to lower the maximum file size they allow and implement harsh rate limits, though this can still lead to a large amount of data to be downloaded.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
来源: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
来源: CVE Program / CVE List V5
Vulnerability Title
Matrix 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Matrix是一个雄心勃勃的新生态系统，用于开放联合即时消息和 VoIP。 Matrix存在安全漏洞，该漏洞源于磁盘消耗不受控制，从而导致拒绝服务。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| t2bot | matrix-media-repo | < 1.3.5 | - |
|
二、漏洞 CVE-2024-36403 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2024-36403 厂商安全公告 (1)
CVE-2024-36403 其他参考 (1)
-
Leaky bucket - Wikipedia x_refsource_MISC
同批安全公告 · t2bot · 2025-01-16 · 共 5 条
| CVE-2024-56515 | 6.8 MEDIUM | Matrix 代码问题漏洞 |
| CVE-2024-36402 | 5.3 MEDIUM | Matrix 授权问题漏洞 |
| CVE-2024-52791 | 5.3 MEDIUM | matrix-media-repo 安全漏洞 |
| CVE-2024-52602 | 5.0 MEDIUM | matrix-media-repo 代码问题漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2024-36403
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