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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 $ s2 D: U2 H# a; }& n

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閫瘙箸寞憒銝:8 I; O! R: I4 S7 Y8 J* A
source\class\discuzdiscuz_application.php曉2 I: q& Y1 e; ]/ ^/ i8 }
  1. private function _xss_check() {7 u! F8 |! A4 q# ?

  2. 9 _* \- A) Y. _) K( h
  3.   static $check = array('"', '>', '<', '\'', '(', ')', 'CONTENT-TRANSFER-ENCODING');  v, E$ @! H, j( V
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  5.   if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {8 i/ ^7 ]1 z3 ?) ?' o
  6.     system_error('request_tainting');
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  7.   }
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  9.   if($_SERVER['REQUEST_METHOD'] == 'GET' ) {
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  10.     $temp = $_SERVER['REQUEST_URI'];
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  11.   } elseif(empty ($_GET['formhash'])) {! K, O% N0 E% ?
  12.     $temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');2 U' Z! ]4 e( u1 C
  13.   } else {# ~. \6 `5 y+ o& b1 u$ Z
  14.     $temp = '';$ c$ {" r7 ^! d$ d
  15.   }
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  17.   if(!empty($temp)) {. n1 O) v1 s7 W; A- V  [
  18.     $temp = strtoupper(urldecode(urldecode($temp)));
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  19.     foreach ($check as $str) {
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  20.       if(strpos($temp, $str) !== false) {
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  21.       system_error('request_tainting');
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  22.     }
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  26.                 return true;
銴鋆賭誨蝣
湔挾銴鋆賣:
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  1. private function _xss_check() {( j# {# w  `, O$ z: E: G/ x
  2.                 $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));5 P9 F# P4 s# c$ Z* Z% G7 X7 [
  3.                 if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {8 v2 z6 F) s8 I8 |/ k3 u# W. m
  4.                         system_error('request_tainting');
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  5.                 }
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  6.                 return true;
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  7.         }
銴鋆賭誨蝣
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