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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 6 E+ W: G8 J. H
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http://www.alexa.com/  園Y憒銝憿! g  k3 X# p1 A: y
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2 i& s, g3 Z  y. v& g" S閫瘙箸寞憒銝:
' r/ Z1 _. x( f. p/ Lsource\class\discuzdiscuz_application.php曉
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  1. private function _xss_check() {7 ^0 b2 W7 [& O- ^  [
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  3.   static $check = array('"', '>', '<', '\'', '(', ')', 'CONTENT-TRANSFER-ENCODING');
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  4. # i* I6 h) b( w6 m# G) q- ~; z- s
  5.   if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {
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  6.     system_error('request_tainting');
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  9.   if($_SERVER['REQUEST_METHOD'] == 'GET' ) {
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  10.     $temp = $_SERVER['REQUEST_URI'];$ j" Q4 N3 f8 J# |. o4 n3 u' a
  11.   } elseif(empty ($_GET['formhash'])) {
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  12.     $temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');$ [9 `6 r. L- B8 j' B7 N, Q# X
  13.   } else {- s6 e# Q9 j1 M! s" l. W
  14.     $temp = '';, H5 e+ v# }3 ]$ ^
  15.   }
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  17.   if(!empty($temp)) {* d; C% Y: Z- L9 Q3 M
  18.     $temp = strtoupper(urldecode(urldecode($temp)));
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  19.     foreach ($check as $str) {! ^; B3 x& i0 A  G; u, n6 g
  20.       if(strpos($temp, $str) !== false) {
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  21.       system_error('request_tainting');
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  22.     }: v  `! M7 T& X# v$ ~. _1 ^
  23.   }( f! s" z9 \. b
  24.                 }) S1 B" \4 |9 ?
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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() {
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  2.                 $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));3 d- ^* m# r! H, @1 [( ?" s) w) ]. `- l4 Y
  3.                 if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {
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  4.                         system_error('request_tainting');( O& c# z- ?% ?6 h5 y7 z! q
  5.                 }; ^2 ^, H, J, ?
  6.                 return true;
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  7.         }
銴鋆賭誨蝣

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