Challenge description

Download the disk image and use mmls on it to find the size of the Linux partition. Connect to the remote checker service to check your answer and get the flag. Note: if you are using the webshell, download and extract the disk image into /tmp not your home directory.

• Download disk image
• Access checker program: nc saturn.picoctf.net 52279

Category: Forensics

Solution

As always, we start by downloading and decompressing the file. I used wget and gzip -d for these tasks.

Next, following the challenge’s description, I used the mmls disk.img to check for the size of the linux partition.

Give that number to the checker program for the flag