IT Security Stack Exchange
IT Security Stack Exchange

Questions tagged [file-access]

143 questions
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Is it possible for a remote machine to "escape" from a folder mapped through RDP?

Although most people seem to share entire drives with RDP, it is possible to share individual folders, by mapping them to a drive for example with subst : (for other ways see raymond.cc ). Obvious commands such as ..\ do…
gbr
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To workaround a FreeBSD ACL bug I need to grant "read attributes/ACLs" to untrusted Samba users. Not happy about security - can practical harm result?

I've found either one, or more than one, bug, in ACL evaluation, when running Samba on FreeBSD. I can't be sure if these are facets of the same bug or related bugs - they're very similar but do have distinct features and expose different specific…
Stilez
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Header opening a PDF file, can someone hack a website from there?

Can someone hack a website that uses this kind of header to open a pdf?
Paul
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Which is the most recommended way to expose a file to a computer in an external network in a secure way?

I have two machines in an internal network. One is a development server, which is isolated from external communications (neither through HTTP, HTTPS, SSH, etc). The last one is a production server (which already has a web server installed on it and…
addictedtohaskell
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How to secure web directories allowing only me to access them

I have a web folder with some PHP files that are hosted on my website (e.g. www.example.com/myfiles/my_file.php) that I access and trade information using ajax for a web app that I have. How can I secure them against direct access and other…
Lioo
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How to detect if files were saved or copied from an external hard drive/USB?

Is it possible? If so, how? This is needed to alert on the copying of "important" files. An example of what I need: There is a document on an external hard drive/USB. You're just allowed to VIEW it, not COPY it. Someone (an employer for example)…
Anonymous
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How original PDF books get out of the publisher's reach and appear online for pirate downloads?

If a scanned book appears online for pirate download, it's no wonder: someone who had a hard copy just scanned every page. But there are a lot of PDFs out there that look like official publisher's copy that was never supposed get out of the…
Sparkler
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How to protect from copying files?

Is possible to protect files from being copied if you are the administrator of a machine? I heard that this behaviour is possible: one software developer sells his software in such a way. He installs it on every client's computer to prevent the…
garik
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My MP3 file is blocked, but still playable?

My computer is telling me that my MP3 file is blocked: I have no problems playing the song, so I was wondering what exactly does it mean for my MP3 file to be blocked?
Pacerier
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Why do file storage sites have a long unique id for their download links?

I'm creating a file storage site and what I would do is just have the download links format as: https://www.domain.com/[id]/[file name] //id would just be 1, 2, 3 etc. Dropbox and many others have it similarly except that the IDs are long /…
Kid Diamond
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zip file downloaded: is it enough to remove it to be secured?

I downloaded a zip file, with vb files inside. If by any chance, it contains a virus, or a source code to have access to my computer, what should I do? I removed the zip file and the folder extracted, empty the trash, and reboot my computer. I have…
Paul
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Can my school computer see my files via USB?

I was issued a chromebook, as was everyone at my school, to use for work in class and in case school has to shut down again. We bring it home so it connects to my personal Wi-Fi when I'm at home. I was working on homework and needed to transfer a…
Sandy
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How can I block access to module for Firefox? (gmail accessing camera)

I run the following command in the background constantly to check for camera access on Ubuntu Linux: lsmod | grep ^uvcvideo I noticed that every time I load into gmail my check is triggering my kernel's camera module. I assume this is just to test…
David Kamer
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Concerns about LaTeX 3 shell escape code

What are the security risks in this line of LaTeX code, and what can be done to reduce them? The LaTeX3 project wants TeX macros to be able to do file operations via shell escape. { cp~-RLf~ \exp_not:N \tl_to_str:n {#1} ~ \tl_to_str:n {#2} } If…
Jonathan Fine
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Erasing files and passes - how to understand them?

A few months ago, I downloaded Edenwaith Permanent Eraser from the edenwaith website and set it to DoE (3x) in the preferences. I am using Mac Mini 2011, MacOS Sierra, and use it to delete files and folders via a Finder plug-in. 7-pass would…
avenas8808
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