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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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! |: a) p' C% y- u* qhttp://www.alexa.com/  園Y憒銝憿3 a! ^( Z) F  [/ f( C

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, j. O( z# ~% o/ U3 |0 U閫瘙箸寞憒銝:
2 r1 [& P% x2 }; h* N) wsource\class\discuzdiscuz_application.php曉
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  1. private function _xss_check() {
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  3.   static $check = array('"', '>', '<', '\'', '(', ')', 'CONTENT-TRANSFER-ENCODING');* \! e* r9 R, ~& m- F& f+ \0 T0 u

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  5.   if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {7 L5 I- ~9 `& n' N& `  Q5 t6 P$ ~
  6.     system_error('request_tainting');. X1 l( ^, f5 c: n' @& a( \) {
  7.   }" S6 q" a4 G# Q% u

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  9.   if($_SERVER['REQUEST_METHOD'] == 'GET' ) {* z+ k% t& @2 a% q; Z% P& q
  10.     $temp = $_SERVER['REQUEST_URI'];0 v4 W( q, W; G3 l- @) g
  11.   } elseif(empty ($_GET['formhash'])) {
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  12.     $temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');
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  13.   } else {( u) Q8 X' N7 n; ]  {# J# e' Q( V
  14.     $temp = '';* Y) Y0 w% G# \3 `" ^
  15.   }
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  16. ; M# G' _/ E! I9 v' }
  17.   if(!empty($temp)) {
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  18.     $temp = strtoupper(urldecode(urldecode($temp)));$ X# w5 f, E; @
  19.     foreach ($check as $str) {& F2 E! W$ c# w) e+ J; M1 q
  20.       if(strpos($temp, $str) !== false) {* [3 \+ B5 I+ I
  21.       system_error('request_tainting');
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  24.                 }
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  25. " {% s7 L: u! R6 ?# x
  26.                 return true;
銴鋆賭誨蝣
湔挾銴鋆賣:
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  1. private function _xss_check() {% a) I; c0 r) Q7 H' |3 p
  2.                 $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));5 E7 ~/ q+ }: P% G
  3.                 if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {
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  4.                         system_error('request_tainting');
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  5.                 }* N6 |& v" I) u2 H4 V4 Z& Y
  6.                 return true;
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  7.         }
銴鋆賭誨蝣

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