Bata - Find in _proc_

#bash #find #grep #DataStreams
Type: Do
Description: A spy has left a password in a file in /proc/sys . The contents of the file start with "secret:" (without the quotes).

Find the file and save the word after "secret:" to the file /home/admin/secret.txt with a newline at the end (e.g. if the file contents were "secret:password" do: echo "password" > /home/admin/secret.txt).

(Note there's no root/sudo access in this scenario).

Test: Running md5sum /home/admin/secret.txt returns a7fcfd21da428dd7d4c5bb4c2e2207c4

The "Check My Solution" button runs the script /home/admin/agent/check.sh, which you can see and execute.

Notes and solution:

To find a word in the contents of all of the files in /proc/sys use the find command:

find /proc/sys -type f | xargs grep 'secret:'

There are a lot of files that can't be accessed without root/sudo access, which we don't have in this scenario. To filter this error messages, redirect only the output of the command, not the errors.

find /proc/sys -type f | xargs grep 'secret:' 1> output.txt
cat output.txt

The secret password is excalibur