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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 : ^: l* Z% E+ o0 Z# T8 J- Y6 q
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http://www.alexa.com/  園Y憒銝憿: n* z: Q% b4 i0 m) M$ _

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閫瘙箸寞憒銝:
6 q  C, k, f, Q, x7 y4 A4 f+ tsource\class\discuzdiscuz_application.php曉
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  1. private function _xss_check() {1 F4 T# E6 j9 y4 v8 y7 u
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  3.   static $check = array('"', '>', '<', '\'', '(', ')', 'CONTENT-TRANSFER-ENCODING');% H% T/ x; X  i4 V
  4. / n* |; {! z6 G4 _) u
  5.   if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {. w' u( j3 `1 N! s. T
  6.     system_error('request_tainting');
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  7.   }/ }- D7 L( C" e) L- w- o1 K- Q

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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');3 f1 u+ J6 a7 N8 T
  13.   } else {/ V/ M9 N; F+ Y6 F
  14.     $temp = '';5 v( y6 _' w- R
  15.   }. a9 U# A0 n* e2 @
  16. 4 V* c  d$ N+ s+ {% U: I9 a
  17.   if(!empty($temp)) {. I7 x. p$ x& S3 a' a
  18.     $temp = strtoupper(urldecode(urldecode($temp)));
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  19.     foreach ($check as $str) {
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  20.       if(strpos($temp, $str) !== false) {0 ?1 Q; g5 u& G, j& j) v9 `
  21.       system_error('request_tainting');9 J& ^7 k. O6 H/ R
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  23.   }
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  24.                 }* O. X" C$ N+ N. {1 S6 G

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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 i; V0 Z  s9 u5 f) X3 M/ k0 B& p" u3 x8 \
  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');
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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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