It seems you have been blacklisted. Knowing what websites typically use to identify their users - try to get rid of that ban.
Target:
Tools:
It's seems because I'm blocked, the page forwards me after few seconds to the next level.
Damn it! I've solved this silly one and I didn't relied
Ok, it's simple step ,, change the **welcome** cookie from no to yes and refresh the page. That's it
Note I'm leaving the below wrong steps because it's really helpfull in such situations but not in this silly case
GET /ctf2/exercises/ex11.php HTTP/1.1 Host: ctf.infosecinstitute.com User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:38.0) Gecko/20100101 Firefox/38.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Cookie: welcome=yes; PHPSESSID=nmg9vid2fite44g1vgqtmgmoq5; user=Sk9ITitET0U%3D Connection: keep-aliveDecode
JOHN+DOE which is JOHN+DOE change it to be TWFyeStKYW5l which is Mary+Jane
from hint, I changed the user agent, found a list here (http://www.useragentstring.com/pages/useragentstring.php) to
Mozilla/5.0 (Windows; U; MSIE 9.0; WIndows NT 9.0; en-US))
X-forwarded-for: 127.0.0.1
X-Forwarded-Host: 127.0.0.1
X-originating-IP: 127.0.0.1
x-remote-addr: 127.0.0.1
X-remote-IP: 127.0.0.1
X-Real-IP: 127.0.0.1