ACECTF 1.0

• Date: 27 Feb., 06:30 UTC — 28 Feb. 2025, 06:30 UTC

Background

• My team: vodanh
• Team Solves: 9/41
• Individual Solves: 5/40
• Score: 1400
• Rank: 254

Writeup

• Web
  1. Buried Deep - Reconnaissance and knowledge about some encode: ASCII, morse.
  2. Webcrypto - Type Juggling
  3. Token of Trust - JWT authentication bypass via payload header injection
  4. Flag-Fetcher - Capture request with Burp Suite
  5. Bucket List - Reconnaissance