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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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$ b5 ]1 M" z, v4 nhttp://www.alexa.com/  園Y憒銝憿! M' `, d! Z- i* D" n3 G
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source\class\discuzdiscuz_application.php曉, N- j+ X; J4 z, k+ g$ t1 x
  1. private function _xss_check() {6 Y! S: h7 l$ K: V& J1 X' d, u5 O
  2. 8 x  y  g/ c9 ]
  3.   static $check = array('"', '>', '<', '\'', '(', ')', 'CONTENT-TRANSFER-ENCODING');+ V( Y4 F6 ?8 P! G

  4. 5 h3 E$ F6 K" `9 ?* [1 ]
  5.   if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {% {, `9 O. s# d
  6.     system_error('request_tainting');' M' c# X2 ^% Q' h
  7.   }# y4 f2 \5 S* v& ~  z4 f/ H+ }
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  9.   if($_SERVER['REQUEST_METHOD'] == 'GET' ) {
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  10.     $temp = $_SERVER['REQUEST_URI'];8 k5 r! ?, b- F& v% t
  11.   } elseif(empty ($_GET['formhash'])) {
    + V/ @# h% T) k4 n. M3 ]
  12.     $temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');
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  13.   } else {
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  14.     $temp = '';1 a+ l6 ^/ @: ~
  15.   }
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  17.   if(!empty($temp)) {/ g4 V$ s4 T# h- a, d' x; K
  18.     $temp = strtoupper(urldecode(urldecode($temp)));! s% b3 P* j6 m8 L6 E. F
  19.     foreach ($check as $str) {
    + }0 \  O* b" K& ~/ _
  20.       if(strpos($temp, $str) !== false) {; w) j* |! R) ]2 C( ^" w
  21.       system_error('request_tainting');
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  22.     }; C4 `/ C( k! H6 _" o' l: a
  23.   }
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  24.                 }0 g2 P# \1 S, i

  25. 5 Y4 Y( B1 h  W* Q+ U
  26.                 return true;
銴鋆賭誨蝣
湔挾銴鋆賣:

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  1. private function _xss_check() {, e: P* X( N/ b) o
  2.                 $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));
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  3.                 if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {
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  4.                         system_error('request_tainting');  `4 D1 s! a9 h4 [
  5.                 }
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  6.                 return true;
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  7.         }
銴鋆賭誨蝣

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