Skip to main content

Buffer overflow explanation from INE






    ------------------

  1. /usr/share/metasploit-framework/tools/exploit/pattern_create.rb -l 9500..…creates pattern which is used for fuzzing
  2. /usr/share/metasploit-framework/tools/exploit/pattern_offset.rb -l 5900 -q 386F4337… (386F4337 is the EIP address when program crashed). This would give us exact bytes to pass to get to the EIP address so we can write the code at that memory address)
      1. Response..
    ------------------

    ------------------


First circle is the number of bytes (filling up with A) we sending to get to EIP.
Second circle is the EIP address we are overwriting to so it can get to the exploit (4th)
Third is the padding (null). Exploit runs and get us root access
    ------------------


Comments

Popular posts from this blog

VM 9 : PHP Include And Post Exploitation

Walkthrough 1.        https://medium.com/@Kan1shka9/pentesterlab-php-include-and-post-exploitation-walkthrough-8a85bcfa7b1d 2.        Ine [] 3.        http://megwhite.com.au/pentester-lab-bootcamp-walkthrough-php-include-post-exploitation/ 4.        http://fallensnow-jack.blogspot.com/2014/07/pentester-lab-php-lfi-post-exploitation.html Notes: root@kali:~# nmap 10.0.0.12 Starting Nmap 7.40 ( https://nmap.org ) at 2017-05-30 12:23 EDT Nmap scan report for 10.0.0.12 Host is up (0.00035s latency). Not shown: 999 filtered ports PORT    STATE SERVICE 80/tcp open   http MAC Address: 08:00:27:1F:12:24 (Oracle VirtualBox virtual NIC) Nmap done: 1 IP address (1 host up) scanned in 5.31 seconds root@kali:~# Enumerating port 80 Run dirb root@kali:~# dirb http://10.0.0.12/ ----------------- DIRB v2.22 By The Dark Raver...

VM 5: Vulnix :

Walkthru: A. https://mrh4sh.github.io/vulnix-solution [SMTP and Finger enumeration, creating linux user with specific UID, root squashing, ssh pwd cracking using medusa & hydra, logging using ssh keys, updating /usr/sbin/exportfs] B. http://overflowsecurity.com/hacklab-vulnix/ [ same as above. create ssh keys for root and copied to victim to login as root w/o recovering pwd] C. https://www.rebootuser.com/?p=988[ local bash shell from nfs] B. https://www.vulnhub.com/?q=vulnix&sort=date-des&type=vm [list of solutions] D. https://www.rebootuser.com/?p=988 [User Enumeration #1 – SMTP, Finger; Entry Point including hydra, Putty(using rlogin service), nfs (showmount,mount) ] Notes: - As you can see the root user is the only account which is logged on the remote  host.Now that we have a specific username we can use it in order to obtain more information about this user with the command  finger root@host . -  Another effective use of the finger...

VM 13 : Basic Pentest 1 csec

Notes: Walkthru: 1. https://medium.com/@evire/basic-pentesting-1-7251fb3e3f9e [ w/metasploi t using Wordpress t] 2. https://prasannakumar.in/infosec/vulnhub-basic-pentesting-1-writeup/ [ w/metasploit using ftp ] 3.  https://www.ceos3c.com/hacking/basic-pentesting-1-walkthrough/ [ by uploading php-reverse-shell in wordpress ] 4. http://k3ramas.blogspot.com/2018/02/basic-pentesting-1-walkthrough.html [  access wordpress config file to get pwd and access the DB ] 5.  https://cowsayroot.com/walkthrough-basic-pentesting-1/ [ Wpscan, ftp metasploit vulnerability, phpbash ] 6.   http://www.hackingarticles.in/hack-the-basic-penetration-vm-boot2root-challenge/    [use msfvenom to create  to create php shell to be uploaded in Wordpress ] 7.   https://d7x.promiselabs.net/2018/01/30/ctf-basic-pentesting-a-guide-for-beginners/ [adding command using using PHP] Notes:  Ports - 21...ProFTPD 1.3.3c - 22 openSSH 7.2p2 ubuntu ...