故障描述:
5 I+ [0 _; I; Y" ^退出登录时出现”您当前的访问请求当中含有非法字符,已经被系统拒绝“错误。
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打开 sourceclassdiscuzdiscuz_application.php 文件
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找到
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private function _xss_check() {
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static $check = array('"', '>', '<', ''', '(', ')', 'CONTENT-TRANSFER-ENCODING');
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if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {
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system_error('request_tainting');
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. O/ h8 S9 B* R- Y2 W9 k if($_SERVER['REQUEST_METHOD'] == 'GET' ) {
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$temp = $_SERVER['REQUEST_URI'];
& {5 [3 Z) x G' l5 k' }8 L } elseif(empty ($_GET['formhash'])) {
% Y$ {: d) [( n. t8 t7 I: q $temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');
8 s& Z( v$ H" y8 s# `" y# r } else {
/ D( [$ Z0 _2 G! v7 ] \7 [2 F $temp = '';
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}
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1 x. r- C5 E6 g: d1 d- g if(!empty($temp)) {
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$temp = strtoupper(urldecode(urldecode($temp)));
w: S6 o: J' D) w; X5 X3 q% v foreach ($check as $str) {
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if(strpos($temp, $str) !== false) {
/ s0 T8 L& V' q. H6 K( @8 } system_error('request_tainting');
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}
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}
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}
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return true;
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}
6 H1 i+ B: d1 I, @& }修改为
$ w; @( C: r2 I% Eprivate function _xss_check() {
! w- y$ C- R+ c( n+ B5 M1 d $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));
2 H: m& v# ?, ^$ W* @. b if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {
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system_error('request_tainting');
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}
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return true;
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}
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