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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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http://www.alexa.com/  園Y憒銝憿
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$ u, [; m5 s1 ~$ I閫瘙箸寞憒銝:
  x7 \- E- m* O# l3 fsource\class\discuzdiscuz_application.php曉
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  1. private function _xss_check() {0 h/ |: W4 W) F: x: `6 m
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  3.   static $check = array('"', '>', '<', '\'', '(', ')', 'CONTENT-TRANSFER-ENCODING');1 O: {3 W6 g5 l7 }+ L

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  5.   if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {
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  6.     system_error('request_tainting');
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  7.   }
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  9.   if($_SERVER['REQUEST_METHOD'] == 'GET' ) {. B; s+ m/ [& h; x# r' G' }
  10.     $temp = $_SERVER['REQUEST_URI'];" h: {1 p& x5 H7 z; L
  11.   } elseif(empty ($_GET['formhash'])) {7 y' Q' A1 g2 S& S
  12.     $temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');
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  13.   } else {. e4 F  W* z: J4 L2 n
  14.     $temp = '';
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  15.   }5 J2 A- B1 f9 K0 v$ w" _
  16. . s9 n3 M1 _! T  {
  17.   if(!empty($temp)) {
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  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) {6 z# e7 }, f* D& L
  21.       system_error('request_tainting');
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  22.     }
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  23.   }
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  24.                 }/ R" C. J# D, Z

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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) {+ s7 ]' v* S7 k# Y! |/ G
  4.                         system_error('request_tainting');
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  5.                 }
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  6.                 return true;- o5 P* F1 _8 i+ S) T# _
  7.         }
銴鋆賭誨蝣

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