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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 , R2 J/ ]1 _1 V" b5 J* |# |8 h( M8 `4 a
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7 ^  @$ @- F5 v4 l# d" a) h* ohttp://www.alexa.com/  園Y憒銝憿  w4 o# T! b; e; y

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閫瘙箸寞憒銝:
- C9 ^6 d  J3 L+ O6 u% zsource\class\discuzdiscuz_application.php曉
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  1. private function _xss_check() {; v- a1 ^/ L& b8 p
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  3.   static $check = array('"', '>', '<', '\'', '(', ')', 'CONTENT-TRANSFER-ENCODING');, |: C2 z: D0 M# N8 X/ }! R3 d3 s
  4. " \1 Y# L) R6 \/ W" y) S7 S
  5.   if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {% L" |. }7 X& v3 _5 T; J
  6.     system_error('request_tainting');1 S6 D8 `) X7 a/ @- n+ m) U
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  9.   if($_SERVER['REQUEST_METHOD'] == 'GET' ) {
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  10.     $temp = $_SERVER['REQUEST_URI'];
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  11.   } elseif(empty ($_GET['formhash'])) {9 _+ \9 B' g* |7 h1 N* E/ W) }
  12.     $temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');* _9 A0 @$ r5 s% i0 N1 a% |0 h
  13.   } else {" R9 k9 `5 z7 v. W! N) L7 a1 R
  14.     $temp = '';# q" K' N/ V- B$ [
  15.   }5 [' o5 _7 d) ~1 ^- L

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  17.   if(!empty($temp)) {3 a: f, x! f3 T
  18.     $temp = strtoupper(urldecode(urldecode($temp)));9 W0 x5 v. L& e" h
  19.     foreach ($check as $str) {
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  20.       if(strpos($temp, $str) !== false) {
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  21.       system_error('request_tainting');
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  22.     }$ f, @; D& Z% m. j. ~; s" t
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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() {
    ; j( Z' p2 q0 s+ Y
  2.                 $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));3 D/ p& Y+ L: P5 t" _
  3.                 if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {( W# T# [7 {$ S5 E: G# e: _/ b
  4.                         system_error('request_tainting');2 B" i: J. o9 [' R, r0 O( G( q1 ?
  5.                 }
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  6.                 return true;
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  7.         }
銴鋆賭誨蝣
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