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Search Result: ctf (144 results)

Welcome, welcome! The time has come to select one courageous young hacker for the honor of representing District 12 in the 74th annual Hacker Games! And congratulations, for you have been selected as tribute!

Hacking games and CTF’s are a lot of fun; who doesn’t like pitting your skills against the gamemakers and having a free pass to break into things?

But watch out, as you will find out, some games are more dangerous than others. I have talked about counterattacks here before, and this system has implemented a number of aggressive anti-hacker measures.

In fact, this VM is downright evil. I am probably legally obligated to tell you that it will try to hack you. So if a calculator or message declaring your pwnedness pops up or shows up on your desktop, you asked for it. But don’t worry, it won’t steal your docs or rm you, it will just demonstrate compromise for the game.

To save precious bandwidth, this has been implemented in a minimal tinycore-based VM, and will require VirtualBox to run. But vbox is free – you can download it here: https://www.virtualbox.org/wiki/Downloads

Unfortunately, I didn’t have the time to add nearly all the things I wanted to, so there are really just a few challenges, a couple of counterhacks, and about 10 memes to conquer. Depending on your skill level, you could pwn (or be pwned) in just a few minutes or in a few hours. So hack it before it hacks you!

No sponsors are necessary, so don’t light yourself on fire. Simply download the evil VM here: TheHackerGames.zip, start it, and open up http://localhost:3000/ to begin. Now, you can totally cheat since you own the VM, but see if you can beat the challenges without cheating. Then you can go ahead and cheat, which should also be fun – you’re probably comfortable with many physical access attacks involving the hard disk, but this system doesn’t use a hard disk. So enjoy and remember…

May the odds be ever in your favor!

Source: http://www.scriptjunkie.us/2012/04/the-hacker-games/

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Our resident ROP ninja barrebas recently gave the team a bootcamp on Return Oriented Programming. The presentation was followed by a demo walkthrough on writing a ROP exploit on a vulnerable application. Since the presentation was well received, he’s decided to make the slides available to everyone. You can view them at https://speakerdeck.com/barrebas/rop-primer.

We hope you enjoy it!


Username: root
Password: toor

Username: level0
Password: warmup

ROP Primer
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This VM is meant as a small introduction to 32-bit return-oriented-programming on Linux. It contains three vulnerable binaries, that must be exploited using ROP.

The machine is built and tested in VirtualBox 4.3.20. It's an Ubuntu 32 bit VM, with ASLR disabled. Useful tools like gdb-peda are installed. A description of the levels, including instructions, can be found on the webserver.

A big shout-out to my team mates of the Vulnhub CTF Team!

@barrebas, March 2015 & June 2015

rop-primer-v0.2.ova:
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MD5:  840c75497f54578497a6e44df2f96047
SHA1: 2cb14d78fd1ff7b5a7895447969fde8ca9c06ef3
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