Using Project Sonar for bug bounty

Using Project Sonar for bug bounty
For my last part about Cyber Security Challenge Belgium 2020, I’m writing a post about another fun challenge. The challenge was pretty simple, extract the flag from the .doc file. When receiving a file created by an Office product (Word, Excel, Powerpoint,…) the first thing that always comes to my mind is that these files […]
As my second part of this write-up series, I will cover two relative small challenges that appeared in the qualifiers round of this year’s Cyber Security Challenge Belgium. Compile Online The idea was simple: someone had made an online C compiler, which could be used by sending C code to the server using netcat and […]
This year marked our second year we participated in Cyber Security Challenge Belgium. Last year, my team got through qualifiers and were invited to Brussels for the semi-finals, where we ended a couple points short from entering the final. This year, we wanted to do better. During this year’s qualifiers, I was in Prague for […]
After participating in the BruCON Student CTF this year, my team ended up being second. This meant the four of us won tickets for the main BruCON 0x0B event. One of the challenges at the Student CTF was named “Fake Malware”. We were given a password locked zip file to start off with. Finding the […]