Information
| Points | Category | Level |
|---|---|---|
| 150 | Forensics | Easy |
Challenge
This cat has a secret to teach you. You can also find the file in /problems/hex-editor_2_c1a99aee8d919f6e42697662d798f0ff on the shell server.
Hint
Solution
We have a image file, but the name of the challenge is hex editor, so it’s obvious that we need to open the file with hex editor and find the flag. One nice option is use the “strings” command that search for printable text in a file and print it.
strings hex_editor.jpg
But it will output a lot of junk that there is in the image so let’s add a filter with grep, pipe the output of the strings to grep that search for some part of the flag that always in the flag like “picoCTF”
strings hex_editor.jpg | grep picoCTF
And we found the flag!
Flag
picoCTF{and_thats_how_u_edit_hex_kittos_22C1d865}