
(Vietnamese) MTUCI Attack & Defense CTF Event at Russia
My write up for the erpdotnet challenge and my experience in the Russia trip

My write up for the erpdotnet challenge and my experience in the Russia trip

My write up for the routersploit challenge in saarCTF 2025

My write-up for ACS EDU 4th Practical Test

My write-up for PTIT CTF 2025 qualified round

My write-up for Misc - Modulo (Python Jail) challenge

A beginner's write-up on Java deserialization about setting up the environment and exploring the URLDNS gadget chain in ysoserial with debugging and payload analysis.