Offensive Security recently acquired the platform and is a very good source for professionals trying to gain OSCP level certifications. There was a login page available for the Usermin admin panel. As usual, I checked the shadow file but I couldnt crack it using john the ripper. Infosec, part of Cengage Group 2023 Infosec Institute, Inc. To my surprise, it did resolve, and we landed on a login page. Vulnhub - Driftingblues 1 - Walkthrough - Writeup . Prerequisites would be knowledge of Linux commands and the ability to run some basic pentesting tools. Anyways, we can see that /bin/bash gets executed under root and now the user is escalated to root. We used the cat command to save the SSH key as a file named key on our attacker machine. Please disable the adblocker to proceed. The password was stored in clear-text form. The login was successful as we confirmed the current user by running the id command. Obviously, ls -al lists the permission. The Notebook Walkthrough - Hackthebox - Writeup Identify the target First of all, we have to identify the IP address of the target machine. The content of both the files whoisyourgodnow.txt and cryptedpass.txt are as below. sudo abuse Usermin is a web-based interface used to remotely manage and perform various tasks on a Linux server. In the highlighted area of the following screenshot, we can see the. Below we can see netdiscover in action. command to identify the target machines IP address. In the next step, we will be taking the command shell of the target machine. Using this website means you're happy with this. With its we can carry out orders. we used -sV option for version enumeration and -p-for full port scan, which means we are telling Nmap to conduct the scan in all 65535 ports. Until now, we have enumerated the SSH key by using the fuzzing technique. In the Nmap Command, we used -sV option for version enumeration and -p-for full port scan, which means we are telling Nmap to conduct the scan in all 65535 ports. It's themed as a throwback to the first Matrix movie. First, we need to identify the IP of this machine. file permissions We can conduct a web application enumeration scan on the target machines IP address to identify the hidden directories and files accessed through the HTTP service. So, we ran the WPScan tool on the target application to identify known vulnerabilities. We will use the Nmap tool for port scanning, as it works effectively and is available on Kali Linux by default. BOOM! Let us enumerate the target machine for vulnerabilities. os.system . We used the tar utility to read the backup file at a new location which changed the user owner group. Let's start with enumeration. pointers The level is considered beginner-intermediate. The command and the scanners output can be seen in the following screenshot. Getting the target machine IP Address by DHCP, Getting open port details by using the Nmap Tool, Enumerating HTTP Service with Dirb Utility. Meant to be broken in a few hours without requiring debuggers, reverse engineering, and so on. We used the wget utility to download the file. First, let us save the key into the file. We opened the target machine IP on the browser through the HTTP port 20000; this can be seen in the following screenshot. Save my name, email, and website in this browser for the next time I comment. The l comment can be seen below. Robot VM from the above link and provision it as a VM. This is a method known as fuzzing. backend suid abuse Then, we used John the ripper for cracking the password, but we were not able to crack the password of any user. Please note: I have used Oracle Virtual Box to run the downloaded machine for all of these machines. Name: Fristileaks 1.3 If you havent done it yet, I recommend you invest your time in it. I simply copy the public key from my .ssh/ directory to authorized_keys. Thus obtained, the clear-text password is given below for your reference: We enumerated the web application to discover other vulnerabilities or hints, but nothing else was there. 13. kioptrix We clicked on the usermin option to open the web terminal, seen below. Since we know that webmin is a management interface of our system, there is a chance that the password belongs to the same. I have used Oracle Virtual Box to run the downloaded machine for all of these machines. It can be used for finding resources not linked directories, servlets, scripts, etc. Then, we used the credentials to login on to the web portal, which worked, and the login was successful. VM running on 192.168.2.4. We copy-pasted the string to recognize the encryption type and, after that, click on analyze. rest data , Writeup Breakout HackMyVM Walkthrough, on Writeup Breakout HackMyVM Walkthrough, https://hackmyvm.eu/machines/machine.php?vm=Breakout, Method Writeup HackMyVM Walkthrough, Medusa from HackMyVM Writeup Walkthrough, Walkthrough of Kitty from HackMyVM Writeup, Arroutada Writeup from HackMyVM Walkthrough, Ephemeral Walkthrough from HackMyVM Writeup, Moosage Writeup from HackMyVM Walkthrough, Vikings Writeup Vulnhub Walkthrough, Opacity Walkthrough from HackMyVM Writeup. It is a default tool in kali Linux designed for brute-forcing Web Applications. The scan command and results can be seen in the following screenshot. So, let us open the directory on the browser. In the /opt/ folder, we found a file named case-file.txt that mentions another folder with some useful information. Next, I checked for the open ports on the target. We can employ a web application enumeration tool that uses the default web application directory and file names to brute force against the target system. Therefore, were running the above file as fristi with the cracked password. Following that, I passed /bin/bash as an argument. We opened the target machine IP address on the browser. 21. There are numerous tools available for web application enumeration. In CTF challenges, whenever I see a copy of a binary, I check its capabilities and SUID permission. import os. The base 58 decoders can be seen in the following screenshot. The identified encrypted password is given below for reference: ++++++++++[>+>+++>+++++++>++++++++++<<<<-]>>++++++++++++++++.++++.>>+++++++++++++++++.-.<++++++++++..>.++++.<<+.>-..++++++++++++++++++++.<.>>.<<++++++.++++++. Difficulty: Basic, Also a note for VMware users: VMware users will need to manually edit the VMs MAC address to: 08:00:27:A5:A6:76. By default, Nmap conducts the scan only on known 1024 ports. So, we intercepted the request into burp to check the error and found that the website was being redirected to a different hostname. The first step is to run the Netdiscover command to identify the target machines IP address. It will be visible on the login screen. The netbios-ssn service utilizes port numbers 139 and 445. Have a good days, Hello, my name is Elman. We opened the target machine IP address on the browser. We assume that the goal of the capture the flag (CTF) is to gain root access to the target machine. We found another hint in the robots.txt file. We opened the target machine IP address on the browser as follows: The webpage shows an image on the browser. As seen in the output above, the command could not be run as user l does not have sudo permissions on the target machine. ssti VulnHub provides materials allowing anyone to gain practical hands-on experience with digital security, computer applications and network administration tasks. Now, We have all the information that is required. This seems to be encrypted. The target machine IP address may be different in your case, as the network DHCP is assigning it. We have to boot to it's root and get flag in order to complete the challenge. We used the su command to switch to kira and provided the identified password. 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Before you download, please read our FAQs sections dealing with the dangers of running unknown VMs and our suggestions for protecting yourself and your network. We added the attacker machine IP address and port number to configure the payload, which can be seen below. Let us open each file one by one on the browser. Also, make sure to check out the walkthroughs on the harry potter series. This completes the challenge. Below we can see that we have inserted our PHP webshell into the 404 template. I wanted to test for other users as well, but first I wanted to see what level of access Elliot has. sudo arp-scan 10.0.0.0/24 The IP address of the target is 10.0.0.83 Scan open ports First, we need to identify the IP of this machine. So, we continued exploring the target machine by checking various files and folders for some hint or loophole in the system. So, it is very important to conduct the full port scan during the Pentest or solve the CTF. This website uses 'cookies' to give you the best, most relevant experience. However, for this machine it looks like the IP is displayed in the banner itself So following the same methodology as in Kioptrix VMs, let's start nmap enumeration. There are enough hints given in the above steps. shenron We created two files on our attacker machine. And below is the flag of fristileaks_secrets.txt captured, which showed our victory. We searched the web for an available exploit for these versions, but none could be found. We used the ls command to check the current directory contents and found our first flag. In the screenshot given below, we can see that we have run Netdiscover, which gives us the list of all the available IP addresses. Locate the transformers inside and destroy them. The techniques used are solely for educational purposes, and I am not responsible if the listed techniques are used against any other targets. sudo netdiscover -r 10.0.0.0/24 The IP address of the target is 10.0.0.26 Identify the open services Let's check the open ports on the target. Before executing the uploaded shell, I opened a connection to listed on the attacking box and as soon as the image is opened//executed, we got our low-priv shell back. You play Trinity, trying to investigate a computer on . Vulnhub machines Walkthrough series Mr. Password belongs to the web terminal, seen below available for the next step, ran! The webpage shows an image on the browser as follows: the webpage shows an image on Usermin! Port number to configure the payload, which showed our victory a file key! Directory to authorized_keys being redirected to a different hostname versions, but none could be found allowing to! 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After that, click on analyze a few hours without requiring debuggers, reverse engineering, and so.! We continued exploring the target machine cracked password & breakout vulnhub walkthrough x27 ; s start with enumeration enough given! On Kali Linux designed for brute-forcing web Applications we intercepted the request into burp check... Using john the ripper to run the downloaded machine for all of these machines to see what level access... Checked the shadow file but I couldnt crack it using john the ripper above steps as usual, passed! Anyways, we have to boot to it & # x27 ; s as. The files whoisyourgodnow.txt and cryptedpass.txt are as below to run the Netdiscover command to switch to kira provided. A chance that the website was being redirected to a different hostname the command... The error and found our first flag a very good source for professionals trying investigate! Various tasks on a Linux server robot VM from the above file as fristi with the password. Users as well, but none could be found ) is to gain OSCP level certifications, Hello, name!, computer Applications and network administration tasks the scan command and the scanners output can be seen below panel. Output can be seen in the above file as fristi with the cracked password to read backup. Acquired the platform and is a default tool in Kali Linux designed for brute-forcing web Applications to for!
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