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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% U1 v8 b9 Y4 d2 p/ [

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閫瘙箸寞憒銝:+ c+ [% {0 F5 M$ ]8 [: L
source\class\discuzdiscuz_application.php曉# t/ K0 M& f( J
  1. private function _xss_check() {) `% N( L  n6 Y# |

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  3.   static $check = array('"', '>', '<', '\'', '(', ')', 'CONTENT-TRANSFER-ENCODING');+ ?* P0 `, G& f  m

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  5.   if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {
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  6.     system_error('request_tainting');
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  7.   }
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  9.   if($_SERVER['REQUEST_METHOD'] == 'GET' ) {0 e: l8 J: k$ h5 q" y) [# \
  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.     $temp = '';
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  15.   }
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  17.   if(!empty($temp)) {) |8 h! j4 \+ g4 t/ ~
  18.     $temp = strtoupper(urldecode(urldecode($temp)));
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  19.     foreach ($check as $str) {, d# e8 j) l9 l( S8 J8 r
  20.       if(strpos($temp, $str) !== false) {+ b. r9 b/ G" ^/ t+ y, t$ J+ ^4 G4 W( ^2 W
  21.       system_error('request_tainting');; Q8 s1 T0 ~* m' k% k" L- e- j& `
  22.     }
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  23.   }
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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'])));& t/ t$ M" ?8 D
  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.                 }/ ~3 B( L  h- X
  6.                 return true;
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  7.         }
銴鋆賭誨蝣

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