The source for this mission can be found in stream 63. It is in Polish but it can be easily spotted that the main source is a PCAP file that can be downloaded from here. Wireshark(ing) Hacing this file on our disk, there isn't much more to do just

Last time, there was no mission on EN stream, so I've decided to describe the one from PL stream sice it was also quite a nice one. The mission is located under https://goo.gl/rs1A2f and the most important part there is that it points to another download which

Gynvael is back with streams and with missions. The 39th stream contains mission no 19 that can be found here. In this mission we are given a CHIP-8 ROM image. This is clearly a reference to the latest streams about this topic (#34, #35, #36, #37, #38). If you don't

This is an another GynvaelEN mission solution. This time, the task is simple. We're given a script and we nned to find the correct password to get the flag. The script is a simple MD5/SHA1 comparison that uses a weak equals operator (==) and we can exploit that. The additional

This mission was on the Polish stream, but it's a nice one so I've decided to describe it anyway. If you don't understand the language let me quickly bring you up to speed - you are given a ZIP file in order to extract a data from it. Of course

Another stream from Gynvael - another mission. This time we need to extract a message from a restriced admin panel. What we see on the page is a welcome message, and an info that the cookie was stored and a request to reload the page. So he "Hit Refresh&

Another week another mission on English side of the youtube channel. This time we are given an info that the transmission was intercepted. You can read more info here. After inspecting the link we are given a huge file of ascii printable characters that looks like base64 string. So we

Another Wednesday, another mission. This time we've got a vulnerability that allows leaking any via as a image - link :) So we download the attached image and got this: The immediate conclusion is that the bars represent chars in the file and the ascii value are represented by the bar

This mission is actually published on the Polish stream but I've decided to write the solution here, in English. So what's this mission is about? We are given the PDF file with the instructions to retreive the hidden message. If you didn't know it already, PDF is quite an interesting

In this mission we are given the data from the hardware logger. On the first look we see some printable characters but nothing obvious. To solve this we need to get some knowledge about scancodes. The article on Wiki gives some clue that we might be on a right track

If you don't know Gynvael - check his channel where he shows some RE/hacking stuff. After each video he posts some small challenge for solving by viewers. In this post I'll show how to solve mission 11. In this task we're given a file that is the "firmware&