Wednesday, September 24, 2014

Writeup - CSAW 2014 : Forensics 200 - Obscurity

This one is really simple.

1. Download pdf.pdf

2. Open it.  It displays this.
3.  Look around.  In Cookie Monster's face is a region of text hidden behind the picture.  
4. Copy and paste. The hidden text is "flag{security_through_obscurity}"
5. Enter flag.