CVE-2025-55013— Assemblyline 4 Service Client 安全漏洞

Assemblyline 4 Service Client: Arbitrary Write through path traversal in Client code

The Assemblyline 4 Service Client interfaces with the API to fetch tasks and publish the result for a service in Assemblyline 4. In versions below 4.6.1.dev138, the Assemblyline 4 Service Client (task_handler.py) accepts a SHA-256 value returned by the service server and uses it directly as a local file name.A malicious or compromised server (or any MITM that can speak to client) can return a path-traversal payload such as `../../../etc/cron.d/evil` and force the client to write the downloaded bytes to an arbitrary location on disk. This is fixed in version 4.6.1.dev138.

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L

相对路径遍历

Assemblyline 4 Service Client 安全漏洞

Assemblyline 4 Service Client是Canadian Centre for Cyber Security开源的一个在Assemblyline 4中发布服务结果的服务客户端。 Assemblyline 4 Service Client 4.6.1.dev138之前版本存在安全漏洞，该漏洞源于直接使用服务端返回的SHA-256值作为本地文件名，可能导致路径遍历攻击。

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