Cracking an Ubuntu password with John the Ripper is very easy. All that is needed is a good wordlist and the John The Ripper utility.
- John The Ripper Faq
- Crack Htpasswd John The Ripper No Password Key
- Crack Htpasswd John The Ripper No Password Hashes Loaded
John The Ripper Faq
- Aug 01, 2016 My first instinct turned out to be the correct one: use John the Ripper on Kali 2. The main issue I faced was extracting the password hash from the Office docs in question so that John The Ripper could have something to run against.
- So we will save the hashes as well in a file called shadow.txt and we will use the famous password cracker john the ripper in order to crack those hashes.In backtrack john the ripper is located in the following path: /pentest/passwords/john. John the ripper directory.
Crack Htpasswd John The Ripper No Password Key
Install the John the Ripper password cracking utility.
In case you have a twofold apportionment, by then there’s nothing for you to organize and you can start using John instantly. Cracking password using John the Ripper. In Linux, mystery word hash is secured in/et cetera/shadow record. For this action, I will make another customer names john and dole out a clear watchword “mystery word” to him.
Crack Htpasswd John The Ripper No Password Hashes Loaded
Dump the Linux user account information to a file from the shadow and passwd files.
Make sure we have a suitable wordlist that could possibly contain a matching password. I used the rockyou.txt file from Kali Linux. Then we are ready to crack the password hashes.
This only took several seconds and both password hashes were cracked. This is a very easy Linux task, once the user has stolen the password files, which requires sudo access. I did this on Ubuntu 17.04. Very easy to crack the passwords, but you need to get access to the shadow and passwd files which is the hard part.