Blaklis' CTF challenges

Those are my challenges for multiple CTF I did since 2019 (sadly, I've no backups of my previous challenges :()

InsomniHack Finals 2019

Phuck3

• Difficulty : 🔥🔥🔥🔥 (very hard)
• Solves : 0
• Main ideas : Bypass PHP open_basedir to read a flag
• Click to go on the challenge repo!

PHPrivate

• Difficulty : 🔥🔥🔥 (Hard)
• Solves : > 20 (fail in the code :()
• Main ideas : Use MySQL max_packet_size to make an uncatched query crash to return false == "" => login Bypass
• Click to go on the challenge repo!

ShoPHP

• Difficulty : 🔥🔥🔥🔥 (very hard)
• Solves : 1
• Main ideas : Use PHP bug #77115 to create a PHP array with duplicate keys to bypass SQL sanitization
• Click to go on the challenge repo!