Advisories for Pypi/Assemblyline-Service-Client package

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. No validation / sanitisation is performed. 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.

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. No validation / sanitisation is performed. 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.