BroncoCTF 2025

• Date: 15 Feb., 19:00 UTC — 16 Feb. 2025, 19:00 UTC

Background

• My team: DK
• Team Solves: 17/40
• Individual Solves: 2/40
• Score: 1926
• Rank: 135

Writeup

• Web
  1. Grandma's Secret Recipe - Cookie Manipulation
  2. Miku's Autograph - JWT authentication bypass via alg header injection