Tys on mytty

TYS 0x07 - onebyte to rule them all

Thu, 15 Aug 2019 17:42:42 +0000

This post is part of the Test Your Skills series. You can find an introduction here. And an overview of all TYS’s currently available is over here.

Challenge

The goal of this challenge is to write a script/tool/exploit which successfully bypasses the login of the network enabled service running in the provided docker container - without changing the docker run command (run it exactly the way as shown below) or any of the scripts/files provided. Feel free to explore the container and take a closer look at the application binary.

TYS 0x06 - willItBounce

Fri, 02 Aug 2019 17:50:15 +0000

This post is part of the Test Your Skills series. You can find an introduction here. And an overview of all TYS’s currently available is over here.

Challenge

The goal of this challenge is to find a way to send a specific input from your host to the “Hidden Service” inside the container (as illustrated by the red arrow) - without changing the docker run command (build and run it exactly the way as shown below) or any of the scripts/files provided.

TYS 0x05 - open sesame

Mon, 27 May 2019 07:50:15 +0000

This post is part of the Test Your Skills series. You can find an introduction here. And an overview of all TYS’s currently available is over here.

Challenge

The goal of this challenge is to get your hands on the secret code which itself is hidden behind a secret and a captcha protection! You are allowed use any means necessary - think outside the box!

TYS 0x04 - Is it really that easy?!

Thu, 16 May 2019 19:02:09 +0000

This post is part of the Test Your Skills series. You can find an introduction here. And an overview of all TYS’s currently available is over here.

Challenge

Your objective? Get root! But, do it without making any changes to the container/image or the file-system outside your users home directory (/home/void) and do not change the docker run command (run it the way shown below)!

TYS 0x03 - I fatfinger deleted my cute little puppy!

Sat, 13 Apr 2019 11:02:14 +0000

This post is part of the Test Your Skills series. You can find an introduction here. And an overview of all TYS’s currently available is over here.

Scenario

Bob, who has a very cute little puppy, sends you an email asking for your help. He says that he, by accident, deleted the best picture he had of his cute little puppy from a USB memory stick. He also mentioned that he immediately unplugged the memory stick once he noticed that he deleted the picture. He took an image of the stick with DD and attached it to the email.

His last line in the mail is something like: This is really important to me. I need this picture back asap. I will make up to you if you can deliver within 72 hours!

TYS 0x02 - PHP in 2019?! Are you insane!?

Sat, 30 Mar 2019 11:40:11 +0000

This post is part of the Test Your Skills series. You can find an introduction here. And an overview of all TYS’s currently available is over here.

There is a reason for everything!

PHP was one of the first web-specialized languages (created 1994) broadly used. Even today, 25 years later, PHP is powering at least parts of most of the web based applications on the internet (~80% - check https://w3techs.com/).

TYS 0x01 - communication in the shadows

Sun, 24 Mar 2019 18:20:11 +0000

This post is part of the Test Your Skills series. You can find an introduction here. And an overview of all TYS’s currently available is over here.

What is going on in our network?!

You are a SOC analyst looking into some weird traffic you spotted on TCP/31337.

TYS 0x00 - santas little RAT

Sat, 16 Mar 2019 20:30:11 +0000

This post is part of the Test Your Skills series. You can find an introduction here. And an overview of all TYS’s currently available is over here.

Santa brought you a little something for Xmas!

I know, it’s not Xmas anymore! But, when I wrote this challenge I was down deep in the Christmas spirit ;)