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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 |甇摨閬 |梯璅∪
砍敺 IT_man 2015-7-19 20:51 蝺刻摩
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8 M5 i" Q% D7 |http://www.alexa.com/  園Y憒銝憿- W6 x7 W7 J& `$ A) C# j
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閫瘙箸寞憒銝:
6 o* |! S, S5 y5 f# Ssource\class\discuzdiscuz_application.php曉( \0 q+ O' q: H; [8 H8 p0 w
  1. private function _xss_check() {. V4 {* X/ R6 D3 ^1 S
  2. 6 w5 E3 r- m2 [1 w% k$ z" ^
  3.   static $check = array('"', '>', '<', '\'', '(', ')', 'CONTENT-TRANSFER-ENCODING');" p/ a! ?. d$ [

  4. 5 D5 p( ^" P5 @# H; W5 ]
  5.   if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {" J. R$ q, k# X+ M
  6.     system_error('request_tainting');
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  7.   }
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  8. . \. {( u" `: l2 _+ Y
  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');
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  13.   } else {
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  14.     $temp = '';
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  15.   }7 n) S$ f0 C+ L- e. X

  16. ( Z1 x$ l- u4 O9 M+ t* l
  17.   if(!empty($temp)) {- v+ H2 K' Y( k) g
  18.     $temp = strtoupper(urldecode(urldecode($temp)));2 H6 c: e3 l. n) Q+ s5 I7 v" y$ K0 [
  19.     foreach ($check as $str) {
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  20.       if(strpos($temp, $str) !== false) {
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  21.       system_error('request_tainting');% b" u% U7 o* e2 g6 y1 }1 L, G* n
  22.     }$ e& V1 P9 w1 V" W% O- I
  23.   }% E8 L! U3 r$ {/ r
  24.                 }
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  25. / r" z6 @$ G/ ~) _% Q* Q, A
  26.                 return true;
銴鋆賭誨蝣
湔挾銴鋆賣:

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  1. private function _xss_check() {
    " O* {( y2 o* P% P5 s4 P+ _1 G
  2.                 $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));3 L8 {; L: Z) k, x" W0 ^/ I
  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;; ?6 r; q1 k0 h# K8 J, {6 {. v
  7.         }
銴鋆賭誨蝣
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