!Underflow

"Binary Exploitation"

Something simple to warm you up.

13KB

exploit-me

Given a binary called "exploit-me", we decided to decompile with Ghidra.

image

Looking at the function list, we were curious about the print_flag function so we decided to take a look further.

Screenshot 2025-02-27 163105

The flag was just written in plain text: ACECTF{buff3r_0v3rfl3w}