PicoCTF 2014 Write-ups

Internet Inspection - 30 (Web Exploitation)

Writeup by evantey14

Created: 2014-11-07 23:04:38

Last modified: 2014-11-09 23:28:11

Problem

On his computer, your father left open a browser with the Thyrin Lab Website. Can you find the hidden access code?

Hint

It may be helpful to learn how to 'Inspect Elements' in your browser.

Answer

Overview

Inspect the table to find the flag.

Details

The hint is to learn how to 'Inspect Elements' in browser. For most browsers, this can be done by right-clicking over the element and selecting "Inspect Element."

When we do this on the checkered box, we see a div with a checkered background image and z-index:100. This means the div is blocking the following div from view. As we look into the div that is blocked, we find a table that contains

<td>flag_793a6a0aa4aa27947641fcb84ead650a6113ab6d</td>

Flag

flag_793a6a0aa4aa27947641fcb84ead650a6113ab6d