Points: 250

Forensics

We salvaged a ruined Ext SuperMagic II-class mech recently and pulled the filesystem out of the black box. It looks a bit corrupted, but maybe there's something interesting in there. You can also find it in /problems/ext-super-magic_4_f196e59a80c3fdac37cc2f331692ef13 on the shell server.

Are there any tools for diagnosing corrupted filesystems? What do they say if you run them on this one?

How does a linux machine know what type of file a file is?

You might find this doc helpful.

Be careful with endianness when making edits.

Once you've fixed the corruption, you can use /sbin/debugfs to pull the flag file out.

To do.

picoCTF{a7DB29eCf7dB9960f0A19Fdde9d00Af0}