\> PicoCTF 2022 Writeups

This website contains Jackwin Hui's writeups for the 2022 PicoCTF competition.

PicoCTF2022 - GDB Test Drive

Description

Can you get the flag? Download this binary. Here's the test drive instructions:

  1. $ chmod +x gdbme
  2. $ gdb gdbme
  3. (gdb) layout asm
  4. (gdb) break *(main+99)
  5. (gdb) run
  6. (gdb) jump *(main+104)

Information

Point Value: 100 points

Category: Reverse Engineering

Hints

(None)

Solution

Download the binary. Follow the instructions given in the description. The flag can be found at the end.

Flag

picoCTF{d3bugg3r_dr1v3_7776d758}