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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]

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頝唾唳摰璅撅
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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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+ {# z" M( v) u$ n! @# k閫瘙箸寞憒銝:
% x4 M' \3 h- P  N" g, c2 Xsource\class\discuzdiscuz_application.php曉
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  1. private function _xss_check() {9 X' ^" j- Z( u& Q4 p
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  3.   static $check = array('"', '>', '<', '\'', '(', ')', 'CONTENT-TRANSFER-ENCODING');$ f! v- s- U: I! m

  4. 6 F% I- P( F% W6 v! w' D
  5.   if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {& F" `: J0 b0 }: E0 X; o; L4 n
  6.     system_error('request_tainting');1 s' p6 {) S7 b6 s* o+ q
  7.   }0 i! P6 Q  c: U" E0 ~+ b% v

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  9.   if($_SERVER['REQUEST_METHOD'] == 'GET' ) {
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  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 {
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  14.     $temp = '';. {, M- c- |& {/ K5 X
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  17.   if(!empty($temp)) {1 ?2 w. M4 ]+ {' s5 D% v7 @' ^6 q
  18.     $temp = strtoupper(urldecode(urldecode($temp)));
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  19.     foreach ($check as $str) {
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  20.       if(strpos($temp, $str) !== false) {8 v6 r- x" L# r
  21.       system_error('request_tainting');) x* t" E( p" o+ O1 C& N& y/ k6 U
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  23.   }
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  24.                 }
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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'])));
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  3.                 if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {
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  4.                         system_error('request_tainting');) z7 x3 P* P/ v3 B  c0 ^
  5.                 }
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  6.                 return true;4 ^$ {4 M' a$ g$ C
  7.         }
銴鋆賭誨蝣
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