Challenges → Binary Exploitation

Format String Leak

Medium 200 pts 🚩 23 solves ⏱ Avg. time to solve: 45d 5h

Challenge Question

This binary happily prints back whatever you type -- a little too literally. It hands your input directly to a formatting function without first telling that function to treat it as plain text. Use that mistake to read something the program never meant to show you.
Download Challenge File

Submit Flag

Log in or sign up to submit a flag.

Details

  • CategoryBinary Exploitation
  • Authortark
  • AddedJul 4, 2026
  • Avg. Time to Solve45d 5h
  • First Blood🩸 mwilson

Recent Solvers

  • linhmu3 16h ago
  • piyush69 5d ago
  • Max Oct 18, 2026
  • chillboy23 Oct 12, 2026
  • amalmj Oct 8, 2026
  • V1XU Oct 3, 2026
  • ajay Oct 2, 2026
  • Jessu Sep 29, 2026
  • rexroro7 Sep 19, 2026
  • durga Sep 6, 2026
Discuss in the forum →