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PicoCTF

GET aHEAD

CHANGE TO HEAD and send picoCTF{r3j3ct_th3_du4l1ty_2e5ba39f}

Cookies

Increase the cookie value from 1 to 18 picoCTF{3v3ry1_l0v3s_c00k135_96cdadfd}

Insp3ct0r

By simply inspecting the webpage and js scripts picoCTF{tru3_d3t3ct1ve_0r_ju5t_lucky?832b0699}

Scavenger Hunt

Part 1 is Inspectelement

Part 2 is Mycss.css

Part 3 is Myjs.js

Part 4 is Robots.txt

Part 5 is .htaccess

Part 6 is .dsstore

picoCTF{th4ts_4_l0t_0f_pl4c3s_2_lO0k_35844447}

Where are the robots

search for robots.txt go to /477ce.html picoCTF{ca1cu1at1ng_Mach1n3s_477ce}

Logon

Edit the cookies and change it to GET /flag picoCTF{th3_c0nsp1r4cy_l1v3s_d1c24fef}

Don’t use client side

Simply viewing the source reveals the flag which is split in several parts Rearranging them gives the flag picoCTF{no_clients_plz_1a3c89}

Who are you

Sending a request with referrer user agent: Picobrowser X-Forwarded-For: 31.3.152.55 (Sweden IP) And date to 2018 DNT=1 picoCTF{http_h34d3rs_v3ry_c0Ol_much_w0w_0da16bb2}