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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
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 2 y: l7 q) [4 W1 I
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http://www.alexa.com/  園Y憒銝憿
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閫瘙箸寞憒銝:
3 o  F3 t8 o( V- x7 nsource\class\discuzdiscuz_application.php曉" U5 f7 a/ ~0 [0 I0 U- k3 n* u
  1. private function _xss_check() {
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  3.   static $check = array('"', '>', '<', '\'', '(', ')', 'CONTENT-TRANSFER-ENCODING');0 `" @% h* p1 h7 o; Z5 s
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  5.   if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {% `( C2 H$ u. _: d
  6.     system_error('request_tainting');
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  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 = $_SERVER['REQUEST_URI'].file_get_contents('php://input');/ n$ z$ `  l: A  D6 \
  13.   } else {
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  14.     $temp = '';
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  15.   }
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  17.   if(!empty($temp)) {8 A% H+ `$ ]! v
  18.     $temp = strtoupper(urldecode(urldecode($temp)));4 a% R; a; a$ Z
  19.     foreach ($check as $str) {0 p- `' y' n, r7 l
  20.       if(strpos($temp, $str) !== false) {% E- T" L4 {7 f4 O7 s2 B
  21.       system_error('request_tainting');( ]4 i6 F0 U6 j& w
  22.     }) m* v6 T' D4 W: a
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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() {
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  2.                 $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));; @  V# I9 U+ J- H$ I7 i0 D& Z- f& K
  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.                 }5 y  x# U3 E6 y! f# P" l. |
  6.                 return true;
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  7.         }
銴鋆賭誨蝣
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