crak

A password file dictionary based password cracker

requirements

1. linux shadow password file containing passwords to attack
2. file containing word dictionary.

usage

installation

pip install crak

help

crak -h
usage: crak [-h] [--version] [-d WORDDICT] [-u USERNAME] shadowfile

Perform a dictionary crack on a list of encrypted passwords using a wordlist

positional arguments:
  shadowfile            Shadow password file containing crypted passwords

optional arguments:
  -h, --help            show this help message and exit
  --version             prints version information
  -d WORDDICT, --worddict WORDDICT
                        Word dictionary files to use in attack
  -u USERNAME, --username USERNAME
                        specific username - if not defined then all users in
                        shadow file will be attempted

list users

will list all valid users in the shadow file and is useful to see what username to target specifically

crak shadow 

-=( crak v 0.0.1 )=-

list of usernames in shadow file
                                                        password
username                                                        
root           $6$QlJt0cnr$hmgN/fzUrHFFI1SaGXVNzE060TPuwsZdzP...
backup         $6$Tye3KuC5$rVIT3u5M9IhZZI.jRanteGT3o7DbkLFWb/...
allison        $6$sPsSvR2J$wk59pi4or6QR5IobArTZpn4k7i2jZQ07pY...
paul           $6$YGG4oFLp$avrVGY6.S59aApmCY/60A7AWfGDBh/zI7L...
dr_balustrade  $6$3kgge6ym$OcIOZS8bJy41YsLYXToOW2Ag3imG1KEXkP...

dictionary attack all users

will run a dictionary attack against all the valid users in the shadow file

crak shadow -d dicttest.txt

-=( crak.py v 0.0.1 )=-

starting to crack passwords for all users
No password found: root
No password found: backup
No password found: allison
No password found: paul
*** FOUND PASSWORD ***
Username: dr_balustrade
Password: pinky
**********************

Specify user to perform brute force attack on

Will target a specific user

crak shadow -d dicttest.txt -u dr_balustrade

-=( crak v 0.0.1 )=-

starting to crack password for user: dr_balustrade
*** FOUND PASSWORD ***
Username: dr_balustrade
Password: pinky
**********************

Display version

displays the current version

crak --version
crak v0.0.1