What exactly happens when someone injects malicious binary code into an image file (on Windows)? How is that done?
We allow users to upload a number of files, all of which we either send over to scribd (doc, xls, ppts, etc) or display as a video ourselves (flv, mov, mp4, etc in flowplayer). To avoid users ...
If a user uploads a file but modifies the request by setting the mime-type to something arbitrary, like "superdangerous/blackhatstuff", is it safe for me to send the same mime type back to a different ...
We are building an application where users can upload resumes in our system for our administrators to download. We are having a debate about restricting the content type of the files that can be ...
My website will be hosting documents for end users and I would like to make this as secure as possible. Question Assuming that I have a need to share documents on a website that may contain hostile ...
Regarding the fact (in case it's not always the proven fact, then an opinion) that there are types of files more safe for handling them after getting from the Internet than the other, i'd like to ask: ...
I don't want it to just check the extension of the file as these can easily be forged even MIME types can be forged using tools like TamperData. So is there a better way to check file types in PHP ? ...