OSCP Security Technology - Introduction

OSCP Security Technology - Introduction

Modules

• Introduction to Kali Linux
• Information Gathering
• Scanning
• Enumeration
• Netcat
• Buffer Overflows
• Exploitation
• WebApp Exploitation
• File Transfers
• Privilege Escalation
• Post Exploitation
• Capstone

Thoughts

• Have Fun
• Try Harder

Common Commands

• pwd
• man
• ls
• cd
• mkdir
• rmdir
• cp
• mv
• locate
• adduser
• su
• sudo
• echo
• cat
• nano
• chmod
• ifconfig
• ping

Services

• HTTP - /var/www/html

  - service apache2 start
  - systemctl enable apache2
  - service apache2 stop
  

  

• SSH

  service ssh start
  systemctl enable ssh
  
  

  

• Postgresql

  service postgresql start
  systemctl enable postgresql
  

Bash Scripting in Kali Linux

ping 192.168.2.23
ping -c 1 192.168.2.23
ping -c 1 192.168.2.23 | grep "64 bytes"
ping -c 1 192.168.2.23 | grep "64 bytes" | cut -d " " -f 4
ping -c 1 192.168.2.23 > ping.txt
cat ping.txt
cat ping.txt | grep "64 bytes" | cut -d " " -f 4 | sed 's/.$//'
ping -c 1 192.168.2.23 | grep "64 bytes" | cut -d " " -f 4 | sed 's/.$//'

for ip in $(seq 1 254); do ping -c 1 192.168.2.$ | grep "64 bytes" | cut -d " " -f 4 | sed 's/.$//' & done

nano pingsweep.sh

#!/bin/bash

if [ "$1" == "" ]
then
echo "Usage: ./pingsweep.sh [network]"
echo "Example: ./pingsweep.sh 192.168.2"
else
for ip in `seq 1 254`; do
ping -c 1 $1.$ip | grep "64 bytes" | cut -d " " -f 4 | sed 's/.$//' & done
fi