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Status Under review
Categories Security
Created by Guest
Created on Sep 21, 2023

Check file upload content with magic bytes

At current situation a malicious user can bypass the file type restrictions for logos in pem-pp application.


It is possible to bypass the upload restrictions and upload a disallowed file by changing the file Content-Type to an allowed one. The server does not check the magic byte of the file or file signature so the uploaded file extension is validate against the file signatures.


https://en.wikipedia.org/wiki/List_of_file_signatures


What is your industry? Healthcare
How will this idea be used?

The magic user validations help us as customers to increase security of the PEM platform avoiding exploits.