How can uploading files be a vulnerability?

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If a website allows the user to upload files, it’s usually considered a vulnerability and the server has to do a bunch of checks.

Does it depend on what the server does with the file? If the user uploads a hacking script, but the server is configured to do absolutely nothing with what’s uploaded, how can that script ever run?

And how can a user know what the server is doing with the file? Yeah trial and error, but trial what, and aren’t there countless things to trial?

In: Technology

8 Answers

Anonymous 0 Comments

Transferring files in one direction opens up your device for files to be moved in the other direction, which combined with the length of time you are connected for the upload can be an issue.

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