HTTP in Detail

• What does HTTP stand for?

HyperText Transfer Protocol

• What does the S in HTTPS stand for?

secure

• On the mock webpage on the right there is an issue, once you've found it, click on it. What is the challenge flag?

THM{INVALID_HTTP_CERT}

• What HTTP protocol is being used in the above example?

HTTP/1.1

• What response header tells the browser how much data to expect?

Content-Length

• What method would be used to create a new user account?

POST

• What method would be used to update your email address?

PUT

• What method would be used to remove a picture you've uploaded to your account?

DELETE

• What method would be used to view a news article?

GET

• What response code might you receive if you've created a new user or blog post article?

201

• What response code might you receive if you've tried to access a page that doesn't exist?

404

• What response code might you receive if the web server cannot access its database and the application crashes?

503

• What response code might you receive if you try to edit your profile without logging in first?

401

• What header tells the web server what browser is being used?

User-Agent

• What header tells the browser what type of data is being returned?

Content-Type

• What header tells the web server which website is being requested?

Host

• Which header is used to save cookies to your computer?

Set-Cookie

• Make a GET request to /room

THM{YOU'RE_IN_THE_ROOM}

• Make a GET request to /blog and using the gear icon set the id parameter to 1 in the URL field

THM{YOU_FOUND_THE_BLOG}

• Make a DELETE request to /user/1

THM{USER_IS_DELETED}

• Make a PUT request to /user/2 with the username parameter set to admin

THM{USER_HAS_UPDATED}

• POST the username of thm and a password of letmein to /login

THM{HTTP_REQUEST_MASTER}