If you paid attention to the results of 3333 port scan, you can see that Ubuntu is mentioned. So we have to look for the clues about OS somewhere else. You can try submitting the “Linux” as an answer, but unfortunately, it will not be accepted. This is a little bit tricky, as the nmap results shows the following: We can see that the -n flag sets the nmap to not to do DNS resolution, and the -R is used to do the resolution.Īnother question asks for what OS is the machine running. It shows that this flag sets what ports should be scanned.įrom this, we can see that the flag -p-400 instructs nmap to scan 400 ports.Īnother question asks what the flag -n will not resolve. In order to answer it, you have to check the nmap manual ( nmap -h). The following question asks about the nmap flag -p-400. If you’ve executed a scan with version detection flag, you can see that port 3128 runs Squid 3.5.12. As the scan found ports 21, 22, 139, 445, 3128, and 3333 open, we can state that in total 6 ports are open.Īnother question asks what is the version of squid proxy. The second question of the task (the first one does not require any input) asks how many ports there are open. This gives us enough information to answer the questions. You might try scanning with the -p- flag, but keep in mind that this scan will check all the ports and will take a lot of time (10+ minutes)Īfter about 30 seconds, you will get the results. The -v flag will show us the results interactively. With these flags, all ports will be scanned with default nmap scripts, and OS and version detection will be executed. But in this case, nmap scan with -A, and -sC flags will give us most of the information we need for the questions. While scan with some of the flags will give you a lot of information, it might take longer to finish.Īnyway, as this is a beginner challenge, try different flags (also try combining them) to see the difference. This is a powerful tool that can provide you a lot of information about the target, however, you must learn to use the correct flags. And the tool you will have to use is the nmap. The second task of the Vulnversity is focused on reconnaissance. If both, attacker and victim VMs are running, let’s proceed to the second task. But you will have to install the necessary tools by yourself. But here are the bad news, unless you have the Tryhackme subscription, you will be able to deploy it for only an hour a day.Īlternatively, you might use the VPN and connect with your own machine. That VM has everything you will need for the task. The AttackBox is a perfect option that gives you a connection with VNC to the Try Hack Me virtual machine. You can do so by clicking on the green Start Machine button.Īnother thing you have to do is either to start the AttackBox or use the VPN. The first task is easy as it can be – all you need to do is to start the machine. Vulnversity WriteupĪs we’ve had briefly discussed what’s waiting for us, we can start solving the tasks. 5 is a little bit advanced as it asks to escalate the privileges in order to get the flag. After that, you will need to find the flag.Īs it was mentioned previously, the task no. Secondly, you have to successfully upload the reverse shell, execute it and start the communication with a victim. Firstly you are asked to bypass the upload restrictions that are set. For this purpose, you are suggested to use the Gobuster.Īll the fun begins with task no. All of the questions are pretty basic and can be answered either by checking the help menu of the nmap, or by analyzing the results of a scan, that was made against the victim. In this task, you will have to use the nmap in order to answer the questions. 2, which focuses on active reconnaissance. Just like in any other room, the first thing you need to do is to deploy the victim machine.Īfter that, you may continue to Task no. Task 3 Locating directories using GoBusterĪs this is an easy room that teaches the basics, over 100k users had joined this room, and the room itself is almost 2 years old.īefore we dive deeper into the technical details of the tasks, let’s have a look at what they are all about.
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