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[Discuz X3.2] Discuz! System Error---函嗅閮芸隢瘙嗡葉急瘜摮蝚佗撌脩鋡怎頂蝯望蝯[2撘萄]

[銴鋆賡包
頝唾唳摰璅撅
璅銝
潸” 2015-7-19 20:45:45 | 芰閰脖 |芰憭批 撣 |摨閬 |梯璅∪
砍敺 IT_man 2015-7-19 20:51 蝺刻摩
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閫瘙箸寞憒銝:$ S5 C7 q3 ?) m2 G
source\class\discuzdiscuz_application.php曉, ?2 I* q" }. Y" _4 t# T- b$ b
  1. private function _xss_check() {
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  3.   static $check = array('"', '>', '<', '\'', '(', ')', 'CONTENT-TRANSFER-ENCODING');8 }; _' @4 q+ g+ y  y2 f
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  5.   if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {
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  6.     system_error('request_tainting');
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  7.   }# `0 l* B8 F0 M9 R" k! C: @# i

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  9.   if($_SERVER['REQUEST_METHOD'] == 'GET' ) {7 s' {) _! M; i- w
  10.     $temp = $_SERVER['REQUEST_URI'];
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  11.   } elseif(empty ($_GET['formhash'])) {
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  12.     $temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');
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  13.   } else {8 w! [4 D3 J- U0 b3 H
  14.     $temp = '';
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  17.   if(!empty($temp)) {2 }* `/ W* T  ~$ C6 h' k7 O
  18.     $temp = strtoupper(urldecode(urldecode($temp)));  U( ]$ I& @- D
  19.     foreach ($check as $str) {0 Z3 _% a" ]% q# r; a) z# e/ T
  20.       if(strpos($temp, $str) !== false) {7 L4 s2 r  T& K2 {- n! w
  21.       system_error('request_tainting');, y* ~% b$ ^& y' l
  22.     }
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  26.                 return true;
銴鋆賭誨蝣
湔挾銴鋆賣:
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  1. private function _xss_check() {9 o7 e+ c+ M$ z3 u5 K5 d: |
  2.                 $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));
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  3.                 if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {# p; }( v  k" u3 G  z! j: }
  4.                         system_error('request_tainting');
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  5.                 }
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  6.                 return true;
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  7.         }
銴鋆賭誨蝣
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