Vulnerability Information
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Vulnerability Title
Unauthenticated writes to the media repository allow planting of problematic content in Matrix Media Repo
Vulnerability Description
Matrix Media Repo (MMR) is a highly configurable multi-homeserver media repository for Matrix. MMR before version 1.3.5 allows, by design, unauthenticated remote participants to trigger a download and caching of remote media from a remote homeserver to the local media repository. Such content then also becomes available for download from the local homeserver in an unauthenticated way. The implication is that unauthenticated remote adversaries can use this functionality to plant problematic content into the media repository. MMR 1.3.5 introduces a partial mitigation in the form of new endpoints which require authentication for media downloads. The unauthenticated endpoints will be frozen in a future release, closing the attack vector. Though extremely limited, server operators can use more strict rate limits based on IP address as a partial workaround.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Vulnerability Type
认证机制不恰当
Vulnerability Title
Matrix 授权问题漏洞
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存在授权问题漏洞，该漏洞源于允许远程参与者触发远程媒体从远程家庭服务器下载和缓存到本地媒体存储库。
CVSS Information
N/A
Vulnerability Type
N/A