Going to the website shows that it is the custom headers type challenge, I used [Postman](https://web.postman.co/) to send the custom requests.
![image](https://github.com/jeromepalayoor/ctf-archive-hub/assets/63996033/3b4c9a0b-1548-4b15-b1c0-e34b157e98b9)
![image](https://github.com/jeromepalayoor/ctf-archive-hub/assets/63996033/a456e8d8-1fb5-4de0-acfe-87f2145c14c4)
![image](https://github.com/jeromepalayoor/ctf-archive-hub/assets/63996033/f6be18f6-3273-47b4-832e-95823d0fbffe)
![image](https://github.com/jeromepalayoor/ctf-archive-hub/assets/63996033/25992d6c-7994-4594-802c-872e3c281bbe)
![image](https://github.com/jeromepalayoor/ctf-archive-hub/assets/63996033/7bf3da17-57cc-4187-ac2b-9af2b122663e)
![image](https://github.com/jeromepalayoor/ctf-archive-hub/assets/63996033/886df96c-ccd6-4269-85da-75b3ff2a4814)
Flag: `n00bz{y0u_4r3_n0w_4_v4l1d_m3mb3r_0f_th3_s3cr3t_gr0up!}`