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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! \+ y# X0 t# {9 E% D% K4 F$ Y" c" s
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閫瘙箸寞憒銝:
/ b6 @/ P6 l/ q" k3 p  Csource\class\discuzdiscuz_application.php曉9 [& ~0 `: Y4 d) ]; y
  1. private function _xss_check() {( l9 O) N5 ?- }2 T; D

  2. # L8 T; ^/ Z! m3 V' {
  3.   static $check = array('"', '>', '<', '\'', '(', ')', 'CONTENT-TRANSFER-ENCODING');( o; ]7 P+ p0 N! e
  4. 2 \- x. L" Q! k9 }
  5.   if(isset($_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' ) {9 |6 R9 f! d1 E; G' Z) E
  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');8 v! c5 P0 s4 u* h
  13.   } else {* K. r9 O; N/ _, E# [
  14.     $temp = '';9 i) e3 V8 B. j: I; i7 P: r- a! Y% N
  15.   }* w9 m7 Q# m% n  V6 V! \! G6 v- C( {

  16. * h2 c5 {% s7 @/ m6 t; u
  17.   if(!empty($temp)) {& A' L: @* S8 @
  18.     $temp = strtoupper(urldecode(urldecode($temp)));0 b4 Q: y7 K* ~; r6 X
  19.     foreach ($check as $str) {4 d$ }7 p* R  p+ a
  20.       if(strpos($temp, $str) !== false) {
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  21.       system_error('request_tainting');! N9 h- M1 ]* r
  22.     }
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  24.                 }. W8 ~$ v) o; \( o
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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 `5 j4 u: T0 P2 U, H& Y- v
  2.                 $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));# u5 k7 ^) `" D" p  y$ M
  3.                 if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {5 I3 y) K/ r8 W6 I
  4.                         system_error('request_tainting');% H  D$ U, V2 S0 E4 x% w
  5.                 }  y% x) X: j8 s! u% h1 M; w5 E
  6.                 return true;# g- a2 F7 {5 Q2 f* W8 t3 ^' M  L4 |
  7.         }
銴鋆賭誨蝣
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