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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 5 C0 U4 |2 e# C: ]+ a& T4 [, j" I

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http://www.alexa.com/  園Y憒銝憿4 {# ^3 D6 e# H' _  g9 m

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閫瘙箸寞憒銝:
/ |' q( V" K; j; V4 C; |0 s7 Usource\class\discuzdiscuz_application.php曉
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  1. private function _xss_check() {
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  3.   static $check = array('"', '>', '<', '\'', '(', ')', 'CONTENT-TRANSFER-ENCODING');
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  5.   if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {
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  6.     system_error('request_tainting');' `% R9 p( A! f/ ^- n. b+ V  Y7 I- M0 |' S
  7.   }# a+ v9 d4 B3 _& Z

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  9.   if($_SERVER['REQUEST_METHOD'] == 'GET' ) {2 U! O: _% |% H
  10.     $temp = $_SERVER['REQUEST_URI'];
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  11.   } elseif(empty ($_GET['formhash'])) {" D) [7 {) o, D" Q. T# a& U+ ]4 \
  12.     $temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');
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  13.   } else {  m4 g9 D+ O' n# k
  14.     $temp = '';( k$ Z6 e' ^- I
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  17.   if(!empty($temp)) {4 T5 m- [! P' ]/ C) _+ n& L
  18.     $temp = strtoupper(urldecode(urldecode($temp)));1 Q! z- T' P4 k* m6 c$ \, [
  19.     foreach ($check as $str) {
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  20.       if(strpos($temp, $str) !== false) {! A( S& z+ D- j" H
  21.       system_error('request_tainting');' A1 U& a0 B# p* w! N0 M
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  23.   }) D. a/ S" v& n+ i; }
  24.                 }- q/ S. d5 p8 P

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  26.                 return true;
銴鋆賭誨蝣
湔挾銴鋆賣:

# `4 F0 @8 [+ y+ x1 A
  1. private function _xss_check() {
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  2.                 $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));: m+ Y: N3 u( m: _. @( q
  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;) W0 @8 l) w8 E7 X- X* [  s2 O
  7.         }
銴鋆賭誨蝣

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