CDDC 2020 Writeups

This is a collection of my writeups for challenges in CDDC 2020

• https://senior.cddc2020.nshc.sg/

Gate 5

Challenge	Remarks
[Crypto-1] My Best Friend, Julius!
[Crypto-2] Cryptic Message
[Forensics-3] Top Secret
[OSINT-1] Better Alternative Than TV
[OSINT-2] Fun with File Extensions
[Pwn (Linux)-1] nc
[Pwn (Linux)-2] (2^31)-1
[Pwn (Linux)-3] Find Singapore Bug
[RE (Windows)-1] Decompile Me
[Web-1] No Time
[Web-2] VulnLogin
[Web-3] Keep Me Posted

Gate 4

Challenge	Remarks
Secret Code

Unsolved

Challenge	Remarks
[RE (Windows)-2] Dissect Me	Gate 5
[Crypto-3] Iffy Glyphs	Gate 5
Recycling Bin	Gate 4
ilovedes	Gate 4
[OSINT-1] Funky Transfer Pact	Gate 4
What Time Is It? [1]	Gate 4