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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  l( v9 l+ J$ J8 s

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1 j+ Y  g7 Q- g0 C閫瘙箸寞憒銝:# @% ~7 Y) ~+ m) u' y: l8 i
source\class\discuzdiscuz_application.php曉; o7 \; g) @; |$ G4 `' y
  1. private function _xss_check() {/ Q- }  ~# W  S' u0 a

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  3.   static $check = array('"', '>', '<', '\'', '(', ')', 'CONTENT-TRANSFER-ENCODING');
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  5.   if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {
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  6.     system_error('request_tainting');  ~) @; c0 c( A7 I
  7.   }  k5 x( p( e8 j6 f! h- q5 F( V
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  9.   if($_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');& @  l; ]% Z; I8 i
  13.   } else {
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  14.     $temp = '';9 _0 w3 H" _7 x8 O: G
  15.   }
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  17.   if(!empty($temp)) {7 e* O4 b2 U& U* ~3 H& `  Q! j8 G
  18.     $temp = strtoupper(urldecode(urldecode($temp)));
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  19.     foreach ($check as $str) {
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  20.       if(strpos($temp, $str) !== false) {* y  @) w' t$ F( M
  21.       system_error('request_tainting');+ W& c$ A  o' q% P& v2 W5 K
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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() {) B% m& {7 Y- B. E- _. d
  2.                 $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));4 B9 p% o. L- g( o- O) J
  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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  6.                 return true;2 k9 }* H' R4 H9 R6 [# b
  7.         }
銴鋆賭誨蝣
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