SickOs: 1.2

D4rk 27 Apr 2016

About Release

Name........: SickOs1.2
Date Release: 26 Apr 2016
Author......: D4rk
Series......: SickOs
Objective...: Get /root/7d03aaa2bf93d80040f3f22ec6ad9d5a.txt
Tester(s)...: h1tch1, Eagle11


This is second in following series from SickOs and is independent of the prior releases, scope of challenge is to gain highest privileges on the system.

File Information:-

File size: 696.2 MB
MD5: b013ba76f50c15890554632a40b697bd
SHA1: 9f45f7c060e15dc6bb93c1cf39efdd75125e30a0

Virtual Machine

Format: OVF
Operating System: Ubuntu
Tested on: VMWare workstation Pro 12.1.0 build-3272444


DHCP service: Enabled
IP address: Automatically assign



Welcome to Droopy. This is a beginner's boot2root/CTF VM.

The VM is set to grab a DHCP lease on boot.

There's 2 hints I would offer you:

1.) Grab a copy of the rockyou wordlist.

2.) It's fun to read other people's email.

SHA1SUM: e6862fa5ebc9c2a8e582e77f440510062afe47ba droopyctf.ova

Special thanks and shout-outs go to Barrebas and Rasta_Mouse for testing, and g0tmi1k for advice and offering to host my first CTF.

SkyDog Con CTF – The Legend Begins

Over but not forgotten.

Download Link


The CTF is a virtual machine and works best in Virtual Box. This OVA was created using Virtual Box 4.3.32. Download the OVA file open up Virtual Box and then select File –> Import Appliance. Choose the OVA file from where you downloaded it. After importing the OVA file above it is best to disable the USB 2.0 setting before booting up the VM. The networking is setup for a NAT Network but you can change this before booting up depending on your networking setup. If you have any questions please send me a message on Twitter @jamesbower and I’ll be happy to help.

Goal of Sky Dog Con CTF

The purpose of this CTF is to find all six flags hidden throughout the server by hacking network and system services. This can be achieved without hacking the VM file itself.


The six flags are in the form of flag{MD5 Hash} such as flag{1a79a4d60de6718e8e5b326e338ae533

Flag #1 Home Sweet Home or (A Picture is Worth a Thousand Words)

Flag #2 When do Androids Learn to Walk?

Flag #3 Who Can You Trust?

Flag #4 Who Doesn’t Love a Good Cocktail Party?

Flag #5 Another Day at the Office

Flag #6 Little Black Box

Simple CTF

Simple CTF is a boot2root that focuses on the basics of web based hacking. Once you load the VM, treat it as a machine you can see on the network, i.e. you don't have physical access to this machine. Therefore, tricks like editing the VM's BIOS or Grub configuration are not allowed. Only remote attacks are permitted. /root/flag.txt is your ultimate goal.

I suggest you use VirtualBox or VMWare Player with a Host Only adapter. The VM will assign itself an IP address through DHCP.

Location [File size: 600MB]


  1. Get a user shell by uploading a reverse shell and executing it.
  2. A proxy may help you to upload the file you want, rather than the file that the server expects.
  3. There are 3 known privesc exploits that work. Some people have had trouble executing one of them unless it was over a reverse shell using a netcat listener.

Contact @RobertWinkel for more hints.

Fuku CTF

Fuku (pronounced "far queue") CTF is designed to fuck with people.

This is a boot2root. Import it in VirtualBox, using a Host Only adapter, or use an adapter that will assign it an IP address in the range. It only likes having an IP address in that range.

Treat the box as if it was on the network. Don't try to do anything to it that you could only do with physical access, e.g. break into the BIOS or the Grub boot loader.

There are a few flag.txt files to grab. The final one is in the /root/ directory. However, the ultimate goal is to get a root shell.


"Bull was pissed when you broke into his Minotaur box. He has taken precautions with another website that he is hosting, implementing IDS, whitelisting, and obfuscation techniques. He is now taunting hackers to try and hack him, believing himself to be safe. It is up to you to put him in his place."


The VM is located at [File size: 2GB]


  1. Some scripting will probably be needed to find a useful port.
  2. If the machine seems to go down after a while, it probably hasn't. This CTF isn't called Fuku for nothing!

Contact @RobertWinkel for more hints.

Minotaur CTF

Minotaur is a boot2root CTF. Once you load the VM, treat it as a machine you can see on the network, i.e. you don't have physical access to this machine. Therefore, tricks like editing the VM's BIOS or Grub configuration are not allowed. Only remote attacks are permitted. There are a few flag.txt files around to grab. /root/flag.txt is your ultimate goal.

I suggest you use VirtualBox with a Host Only adapter to run Minotaur fairly painlessly.

The VM will assign itself a specific IP address (in the range). Do not change this, as the CTF will not work properly without an IP address of 192.168.56.X.

If you load the .ova file in VirtualBox, you can see this machine from another VirtualBox machine with a "Host Only" network adapter. You can see the machine from VMWare Workstation by: - Going into Virtual Network Editor and changing the VMnet0 network to "Bridged to: VirtualBox Host-Only Ethernet Adapter". - Setting your VMWare network adapter to Custom (VMnet0) - If necessary, resetting your network adapter (e.g. ifdown eth0 && ifup eth0) so that you get a address.


The VM is located here: [File size: 691MB]


  1. This CTF has a couple of fairly heavy password cracking challenges, and some red herrings.
  2. One password you will need is not on rockyou.txt or any other wordlist you may have out there. So you need to think of a way to generate it yourself.

Contact @RobertWinkel for more hints.

SmashTheTux v1.0.1


Introduction to Application Vulnerabilities

For Educational Purposes

SmashTheTux is a new VM made by for those who wants to take a step into the world of binary exploitation. This VM consists of 9 challenges, each introducing a different type of vulnerability. SmashTheTux covers basic exploitation of the following weaknesses:

  • Stack Overflow Vulnerability
  • Off-by-One Vulnerability
  • Integer Overflow
  • Format String Vulnerability
  • Race Conditions
  • File Access Weaknesses
  • Heap Overflow Vulnerability

Credentials => tux:tux, root:1N33dP0w3r

Have fun!


  • SmashTheTux v1.0.1 (01/04/2016)
  • Fixed 0x02 file permissions

  • SmashTheTux v1.0.1 (18/03/2016)

  • First Public Release



Multi Vulnerable Virtual Machine

For Educational Purposes

Kevgir has designed by canyoupwnme team for training, hacking practices and exploiting. Kevgir has lots of vulnerable services and web applications for testing. We are happy to announced that.

Have fun!

Default username:pass => user:resu

  • Bruteforce Attacks
  • Web Application Vulnerabilities
  • Hacking with Redis
  • Hacking with Tomcat, Jenkins
  • Hacking with Misconfigurations
  • Hacking with CMS Exploits
  • Local Privilege Escalation
  • And other vulnerabilities.
         _         _            _        _   _        _            _
        /\ \      /\ \         /\ \     /\_\/\_\ _   /\ \         /\ \
       /  \ \    /  \ \        \ \ \   / / / / //\_\/  \ \       /  \ \
      / /\ \ \  / /\ \ \       /\ \_\ /\ \/ \ \/ / / /\ \ \     / /\ \ \
     / / /\ \_\/ / /\ \_\     / /\/_//  \____\__/ / / /\ \_\   / / /\ \_\
    / / /_/ / / / /_/ / /    / / /  / /\/________/ /_/_ \/_/  / / /_/ / /
   / / /__\/ / / /__\/ /    / / /  / / /\/_// / / /____/\    / / /__\/ /
  / / /_____/ / /_____/    / / /  / / /    / / / /\____\/   / / /_____/
 / / /     / / /\ \ \  ___/ / /__/ / /    / / / / /______  / / /\ \ \
/ / /     / / /  \ \ \/\__\/_/___\/_/    / / / / /_______\/ / /  \ \ \
\/_/      \/_/    \_\/\/_________/       \/_/\/__________/\/_/    \_\/


1) Run the OVA in a VM and connect to the webserver 2) Have Fun!

Made by


Thanks to

morbidick einball sarah

I would probably have never finished', this project without you guys ;)',


For hinting me to Erik Österberg's Terminal.js


For providing fuel in the form of fudge and premium grilled goods

More information:


A friend wanted to get into some simple exploits. I suggested starting out with web security, she was all for it. But when I started browsing vulnhub and the likes I couldn't find anything like I had in mind. So I wrote my own.


This is a story based challenge written in a style heavily inspired by Neil Stephensons Snow Crash and William Gibsons Sprawl Trilogy. Each chapter is unlocked by solving the puzzle. From hardcoded clear text javascript password checks, SQL-injections and cracking hashes to a simulated terminal. You only need to start the VM, a webserver will come up and you can connect with your browser. In fact you never have to leave the browser.


Teach some basic well known techniques and attacks. Spark some curiosity, make the user look at the source code and try to figure out what's going on behind the scenes. The main goal is to give a nice welcoming intro to the scene and hopefully also teach something about ethics and responsibility.

Change log

v1.0.1 - 2016-01-15: v1.0.0 - 2015-10-27:

The CsharpVulnSoap virtual appliance is a purposefully vulnerable SOAP service, focusing on using XML, which is a core feature of APIs implemented using SOAP. The web application, listening on port 80, allows you to list, create, and delete users in the PostgreSQL database. The web application is written in the C# programming language and uses apache+mod_mono to run. The main focus of intentional vulnerabilities was SQL injections.

The vulnerable SOAP service is available on http://<ip>/Vulnerable.asmx, and by appending ?WSDL to the URL, you can get an XML document detailing the functions exposed by the service. Using this document, you can automatically fuzz the endpoint for any vulnerabilities by parsing the document and creating the HTTP requests expected programmatically.

The SQL injections yield a variety of potential exploit techniques since different SQL verbs are used to perform actions against the server. For instance, a SQL injection in an INSERT statement may not be exploitable in the same ways the DELETE or SELECT statements will be. Using a tool like sqlmap will help you learn how to exploit each SQL injection vulnerability using a variety of techniques.

If you are curious how sqlmap is performing the checks for, and ultimately exploiting, the vulnerabilities in the web application, you can use the --proxy option for sqlmap and pass the HTTP requests through Burpsuite. You can then see in the HTTP history tab the raw HTTP requests made by sqlmap.