DEF CON CTF Qualifier 2023 Writeup

CTFTime event link: https://ctftime.org/event/1871

Writeups

• Intro:
  1. Welcome to Quals
• Quals:
  1. Pawan Gupta

Background

• Starts: 27 May 2023, 00:00 UTC+0
• Ends: 29 May 2023, 00:00 UTC+0

See shell in your future.

On May 26, join thousands of teams in the quest to qualify for the 2023 DEF CON Capture the Flag Finals.

Categories:

• Intro
• Quals
• LiveCTF

Overview

• Team: JHDiscord
• Team Member: @siunam, @Aries2, @Chrono, @Dozer456, @fas316, @AlwaysBeNoobing, @pr1sm, @kaurpreet, @qban, @gls, @Bit, @awesome10billion, @7777777, @Daniele, @Cron, @Boboski, @Icarus1, @Grumpy_Sax, @goldenturtle, @Maddy, @Lotte, @llaxx, @Mr.Panda, @moreoflore, @molten, @MADhatter4², @oldschool125, @Ninjawarrior0074, @Muhammad Essameldin, @pzron, @PotmeHunt, @pipironi, @starry_girl, @sdj04, @Trace, @Tina, @tangled, @Lavender~ , @WhoL3tTh3D0gsOut..?, @VaroA, @tsong0ku, @fire, @archived, @$ ./caliber.sh, @tahmidsayem100, @Dev44n
• Team Solves: 3/30
• Individual Solves: 3/30
• Score: 36/3753
• Rank: 132/535
• Overall Difficulty To Me: ★★★★★★★★★★

What I’ve learned in this CTF

• Intro:
  1. Executing Shell Commands With ROT13 (Welcome to Quals)
• Quals:
  1. Large Language Model (LLM) Prompt Injection With Filter Bypass (Pawan Gupta)