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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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http://www.alexa.com/  園Y憒銝憿5 p. W9 e: o0 y8 Y* R
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source\class\discuzdiscuz_application.php曉! W: }+ S4 m4 k4 k
  1. private function _xss_check() {# A* Z/ p; A7 Z
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  3.   static $check = array('"', '>', '<', '\'', '(', ')', 'CONTENT-TRANSFER-ENCODING');
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  5.   if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {0 @: d; S" b$ P9 Q, D& {! G
  6.     system_error('request_tainting');& |2 W/ ~2 Z1 i$ h& f
  7.   }
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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'])) {# t: L% Q; k- s2 k
  12.     $temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');$ ]5 x5 h7 D+ V. P/ F4 A- i  p
  13.   } else {( C6 G5 s7 o) v/ z, J3 a
  14.     $temp = '';
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  15.   }
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  16. & Z" W& W& N' f9 H3 P5 o/ {
  17.   if(!empty($temp)) {/ b, `2 o' K, ~$ K: \5 l, @
  18.     $temp = strtoupper(urldecode(urldecode($temp)));
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  19.     foreach ($check as $str) {5 C) v' I& Z& h- ]" i! j
  20.       if(strpos($temp, $str) !== false) {  w( m1 s3 a- O, C& P- F0 V. r
  21.       system_error('request_tainting');3 |! J9 X& k& |8 V6 a% `
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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'])));/ h0 @2 S' l3 d0 d- y
  3.                 if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {. B' k" p. w: B: P4 ~  p* H
  4.                         system_error('request_tainting');
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  5.                 }
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  6.                 return true;7 Y9 ^' ^: v* Q# X3 Z( J
  7.         }
銴鋆賭誨蝣
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