already got

already got

First impressions

can you see HTTP Response header?

말 그대로 HTTP Response header에서 FLAG 값을 찾으라는 것 같다.

Trial and error

• Nothing.

Solution

• Chrome browser - DevTools(개발자 도구) - Network
• Response Headers 확인.

HTTP/1.1 200 OK
Date: Fri, 26 Oct 2018 07:32:51 GMT
Server: Apache/2.4.18 (Ubuntu)
FLAG: (HIDE)
Content-Length: 27
Keep-Alive: timeout=5, max=100
Connection: Keep-Alive
Content-Type: text/html; charset=UTF-8

• FLAG 값이 나온다.