# Empire3

## Problem

> Agent 513! One of your dastardly colleagues is laughing very sinisterly! Can you access his todo list and discover his nefarious plans? <https://2019shell1.picoctf.com/problem/45132/> (link) or <http://2019shell1.picoctf.com:45132>

* [Website](https://2019shell1.picoctf.com/problem/45132/)

## Solution

1. Create an account and sign in
2. Use EditThisCookieto get flask session cookie
3. Create a todo of `{{config}}` and get the flask `SECRET_KEY` variable (used for encoding session cookies)
4. Paste `SECRET_KEY` into `secret_key` variable of attached script
5. Paste flask cookie into `regular_user_cookie` variable of attached script
6. Run script to decode cookie and paste into `cookie_dict` variable
7. Change `"user_id": "x"` to `"user_id": "2"`
8. Run script again and change cookie to the new cookie
9. Reload the page and the flag should be given

### Example Output

```
Decoded Cookie:
{'_fresh': True, '_id': '669830bc929eb8755b468ad78734441992a8275815de8e86acaefc907af730c0f014a3c1aebb5c4f81924a9e400164894ab9f21fda058f1542b5d07c5cccc5a3', 'csrf_token': '86c56031ea9ab7555bb9e367a80f6a3bf72a1c59', 'user_id': '3'}

Encoded Cookie For User 2:
.eJwlzzFqBTEMBNC7uE4h2ZIt5TKLpJVICCSw-38VcvdvyHRTDLz5bUddeX-09_a4ntne2vF57jKnygAP7Zoui9lpip1L1iAiVO0mfbEgnykp08KyQmFZrQEBBUg2Ai3dOagEtZNpEgBOEiVzrY51GrAUMnXnE1Zw7LCNDYn7quPx85Xf2yMzeMLANDXfHHbXHHOZQE0bXqsbBuvePe-8_k_09vcCf5o-3g.XaOrlQ.dWJr-X0v22Dhdt0rswb0cvI3lMk
```

### Flag

`picoCTF{cookies_are_a_sometimes_food_8038d44f}`


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://picoctf2019.haydenhousen.com/web-exploitation/empire3.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.