Network challenges

All challenges listed here are about finding network related information, live hosts and services.

Submit your solution here (only for the network challenges with flag):

Difficulty levels:

Network information

Info 1. Find the email address of the owner of hackingarena.no! Solution Video solution	Info 2. Find the nameservers that are responsible for the hackingarena.com domains! Solution Video solution
Info 3. Find all subdomains of hackingarena.com! Solution	Info 4. Find the ip addresses of all hackingarena.com related servers! Solution
Info 5. Find the network range and the owner of the range of hackingarena.com! Solution Video solution	Info 6. What was the function of hackingarena.com in 2007? Solution Video solution
Info 7. List the ip history of hackingarena.com! Solution	Info 8. Do a reverse dns lookup for www.hackingarena.com and find all other domains for the same ip! Solution

Port scanning

Port 1. Ask the computer names from the dns server in the /24 network range of uio.no and find the playground! Solution Video solution	Port 2. Determine the possible operating system types of all hackingarena servers using the TCP TTL value! Solution
Port 3. How many regular ports are open on the hackingarena.com related servers? Solution Video solution	Port 4. Find all regular web services in the /24 network range of hackingarena.com! Solution
Port 5. How many tcp ports are open on the jabba.hackingarena.com server (considering all ports)? Solution	Port 6. How many tcp ports are open in the port range 1-1000 on all hackingarena.com servers? Solution
Port 7. Find the hidden service on the kenobi.hackingarena.com server in the port range 20000-25000 and obtain the flag! Solution	Port 8. Find the hidden service on the kenobi.hackingarena.com server in the port range 25000-30000 and obtain the flag! Solution

Get in touch with services

Touch 1. Find the ssh service on jabba.hackingarena.com in the portrange 800-900. Morten is a user of that service. His password is an A-HA song title. (format: Capital for each starting letter without spaces e.g. TakeOnMe ) Solution	Touch 2. There's a service somewhere on the palpatine.hackingarena.com server in the portrange 15000-20000. Find it and log in to get the flag! Solution
Touch 3. It looks like there's a vulnerable service on the kenobi.hackingarena.com server on port 812. The flag is inside the flag.txt file but you need an exploit. Hmmm... What about checking the arena exploit database here: https://hackingarena.com/arena-exploits Solution	Touch 4. Log in to the ssh service on the http://jabba.hackingarena.com port 826. The admin user has one of the most common passwords. Solution
Touch 5. The kenobi.hackingarena.com server has another vulnerable service on port 813. The flag is inside the flag.txt file. Check again the arena exploit database: https://hackingarena.com/arena-exploits Solution

Challenges without solution

Network 1. Find the website on sidious.hackingarena.com in the port range 2000-3000 and capture the flag!	Network 2. Find the service on sidious.hackingarena.com in the portrange 9000-9500. Obtain the flag!
Network 3. Find the service on sidious.hackingarena.com in the port range 4500-5000 and get the flag!	Network 4. Find the service on sidious.hackingarena.com in the port range: 10500-11000 and log in to get the flag. My username is laszlo and I like common passwords.
Network 5. Find the unknown service on sidious.hackingarena.com in the port range 7000-7500. Maybe there's an exploit for this? https://hackingarena.com/arena-exploits	Network 6. Find the service and the flag on sidious.hackingarena.com in the port range between 7500 and 8000! Submit the flag!
Network 7. Hi guys, I need your help. I've got an email to pay 0.5 bitcoin. If not, they release all my private files stored on my secure server here: http://sidious.hackingarena.com:848 My username is casanova. Ok, ok, I'm using the same password everywhere for like 5 years now and probably the password is not so strong. But I've never had any incident before (except for this embarrassing Ashley Madison case, but fortunately nobody could identify me). Could you please help me out?	Network 8. Find the service on sidious.hackingarena.com in the port range 5000-5500. Find and submit the flag!