Categories
CTF Writeups

[CTF] interIUT 2k21 – Programming series : Redemption

Hey everyone ! I participated to the interIUT CTF 2021 edition with my team Arn’Hack last week end, and I wanted to share with you the write up of the Redemption serie. This 3 challenges were quite nice, and two of them were about image processing. The first programming challenge I will not review here […]

Categories
CTF Writeups

[CTF] Inter-IUT 2021 – Mystère au village des irréductibles gaulois (cryptographie)

Aujourd’hui premier write-up, je vais décrire le challenge de cryptographie “Mystère au village des irréductibles gaulois”. Ce challenge était présent lors de l’édition 2021 du CTF Inter-IUT. Nous sommes en 85 av J.-C (Jean Claude bien sûr). Comme à son habitude, Abraracourcix, le chef du village fait un grand festin. C’est alors qu’Assurancetourix, retranché pour […]

Categories
CTF Writeups

[CTF] P’Hack – RAID dead redemption (forensics)

I took part in the P’Hack CTF with the Arn’Hack Team. It was a beginner friendly CTF, with a lot of easy challenges. I wanted to write about this forensic challenge “RAID dead redemption”. The goal was to recover data from a RAID partition composed of  3 disks, in which one of them was completely […]

Categories
CTF Writeups

[CTF] InterIUT – Forensics

The CTF had the usual categories, but today I am going to do the Write-up of the forensics series. It’s composed of three challenges, on the same .pcapng file. The second one was solved by my mate SoEasY (he got some nice stuff on his website, in particular about reverse engineering, check it out). Regardless, […]

Categories
CTF Writeups

[CTF] – Keypad Sniffer

Hey guys ! From October 24th 2020 to November 11th 2020 took place the “Brigitte Friang Operation”. It’s a Capture The Flag competition organized by the DGSE, the French Directorate-General for External Security. After some introduction challenges (that were already fairly hard to be honest), you’ll finally get access to the read CTF, that you […]