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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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6 e$ Z7 V' @. t4 o7 Xhttp://www.alexa.com/  園Y憒銝憿& ^* f& d/ X* w8 }' B

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閫瘙箸寞憒銝:
* B) p. @4 m+ q. bsource\class\discuzdiscuz_application.php曉
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  1. private function _xss_check() {
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  2. # o- _2 v: h. F" }$ p! t
  3.   static $check = array('"', '>', '<', '\'', '(', ')', 'CONTENT-TRANSFER-ENCODING');; V7 T# @9 V3 U1 g  R7 p; y8 }  ^/ ^

  4. 6 D; c3 _( J# ?
  5.   if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {
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  6.     system_error('request_tainting');6 U/ d& C# w; B) Z
  7.   }
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  9.   if($_SERVER['REQUEST_METHOD'] == 'GET' ) {7 Z- ]. Z& G; D9 q0 o" X% F
  10.     $temp = $_SERVER['REQUEST_URI'];) {. _4 _6 r+ }) a5 S) g: r/ L
  11.   } elseif(empty ($_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.     $temp = '';
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  17.   if(!empty($temp)) {
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  18.     $temp = strtoupper(urldecode(urldecode($temp)));
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  19.     foreach ($check as $str) {" ?  E, ^, X3 |9 w! }6 c
  20.       if(strpos($temp, $str) !== false) {
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  21.       system_error('request_tainting');( \$ H/ s$ T9 J. H8 x( |; c
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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() {9 U5 U) m2 H1 p& ~% b
  2.                 $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));# y& K7 R) g2 q
  3.                 if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {' }. B' I" J; t3 x# l! V5 T
  4.                         system_error('request_tainting');
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  5.                 }% |8 H% B0 s1 g8 f
  6.                 return true;" g# d; G2 `. m' R" h
  7.         }
銴鋆賭誨蝣

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