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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 : W/ X$ H! S/ G" U/ D1 f0 [

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. [: Y6 R4 P% Q/ Yhttp://www.alexa.com/  園Y憒銝憿
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6 ^+ W" B& j7 M0 U$ t. M閫瘙箸寞憒銝:
! Q5 Z" F+ D1 L( r( Ysource\class\discuzdiscuz_application.php曉  I! j3 o' \: L
  1. private function _xss_check() {+ J5 O: d" z  u$ d1 m  ?
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  3.   static $check = array('"', '>', '<', '\'', '(', ')', 'CONTENT-TRANSFER-ENCODING');' W! Q  N1 \1 ]& M

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  5.   if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {6 F: r) Q" N  p1 r- v- G8 N" }5 m+ M2 |# `
  6.     system_error('request_tainting');3 R0 s( Y/ u% Q. @' H7 K. ^4 X+ }
  7.   }
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  9.   if($_SERVER['REQUEST_METHOD'] == 'GET' ) {
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  10.     $temp = $_SERVER['REQUEST_URI'];
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  11.   } elseif(empty ($_GET['formhash'])) {
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  12.     $temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');# k4 B# d& n; {5 M
  13.   } else {
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  14.     $temp = '';
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  17.   if(!empty($temp)) {1 ]. r% r$ e" @8 t/ |% j8 D8 k
  18.     $temp = strtoupper(urldecode(urldecode($temp)));* u9 U& Q4 b: J3 w' o9 x/ ^
  19.     foreach ($check as $str) {
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  20.       if(strpos($temp, $str) !== false) {
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  21.       system_error('request_tainting');; K5 P: c$ m$ c: J
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  24.                 }+ g7 L; i" ]" C; p, C/ _1 \
  25. 3 F8 t2 J% W4 Y' {
  26.                 return true;
銴鋆賭誨蝣
湔挾銴鋆賣:
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  1. private function _xss_check() {- r& [/ v; ~& R; i, G
  2.                 $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));. R! m5 T; e5 @% \2 G7 S( ?6 ^9 ?
  3.                 if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {- X1 v: w7 `) L# A" z
  4.                         system_error('request_tainting');
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  5.                 }' |* g3 e! _- \, O  m6 Z- i
  6.                 return true;
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  7.         }
銴鋆賭誨蝣
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