An archive file format that is used to bundle multiple files and folders together that may have been compressed.

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28
votes
9answers
9k views

Are password-protected ZIP files secure?

Following my answer. If I can list contents of password-protected ZIP file, check the file types of each stored file and even replace it with another one, without actually knowing the password, then ...
15
votes
4answers
1k views

What are the security threats of zip file uploads and what preventive actions should be taken?

We have a Drupal application developed for sharing files. We are allowing zip files to be uploaded by logged in departmental user. We are using Drupal private file system (outside webroot). We are ...
5
votes
3answers
2k views

Can password-protected zip files be broken without brute force?

You have a zip file that you created with 7z to password-protect it with AES 128. Can a smart adversary extract the data only through brute force, or is the file vulnerable to other attacks - such as, ...
2
votes
2answers
2k views

Can I properly make password-protected 7z archives secure?

After reading the question and answers of this and this, I left with an overall impression from the last one that zips were considered not safe and insecure way of sharing data. I still think ...
1
vote
1answer
142 views

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, ...
0
votes
2answers
62 views

Restricting locations for unzipping a zip file

I hope that I have found the correct place to ask my question regarding unzipping files. I would like to see if there is a way to restrict the locations available to the user to unzip a password ...
0
votes
0answers
18 views

Gladman's file encryption library = AES in counter mode with HMAC-SHA1 authentication?

I would like to use Gladman's algorithm to create AES encrypted data in JavaScript. I use the Crypto-JS library, but its performance is horrible. PBKDF2 is terribly slow, so I switched to another ...
-6
votes
1answer
153 views

Reverse shell in gzip

I got a box I am trying to pop (boot and root) that has an upload form on its website for logged in users that will take a .gzip file and extract it to the users home directory on the server. I am ...