file-run1 | picoCTF 2022 Solutions

Description

Make the provided binary executable and run it with no arguments. It prints the flag immediately.

Setup

Grant execute permissions (`chmod +x run`).

Execute it: `./run`.

chmod +x run

./run

./run | cut -d ' ' -f4

Step 1Run the binary
No tricks here; the compiled program prints picoCTF{...} on stdout.
Step 2Optional: trim the output
Use `cut -d ' ' -f4` to print only the flag token.

picoCTF{U51N6_Y0Ur_F1r57_F113_e55...}

Another quick warm-up to ensure your environment can execute ELF binaries.