1. Google CTF 2019 (Quals): Sandstone (Sandbox, 383 pts, 8 solves)

    Author: Vtec234 …


  2. Google CTF 2019 - JIT (pwn)

    Author: brnby …


  3. DEF CON CTF Quals 2019 - babyheap (pwn)

    Author: brnby …


  4. WPICTF 2019 - breakingin - pwn 500

    For this challenge we were given SSH credentials and told that there was an SSH server listening on localhost on breakingin.wpictf.xyz, but the firewall was blocking external access to this server. However there was a ‘weird’ service listening on port 31337. …


  5. PlaidCTF 2019 - Triggered

    For this challenge we have an utter atrocity against mankind, a webserver written entirely in SQL. …


  6. VincCTF Writeup

    This was a very enjoyable cryptography-only CTF. It explored common implementation errors in modern cryptosystems, with a focus on elliptic curve signatures, broken combination ciphers, and cryptocurrencies. …


  7. SECCON Ghostkingdom Writeup

    Solved by: 0x6e6576657220676f6e6e61, p4wn, $ud0 …