故障描述:
- G2 k: C- I3 L6 E/ P) E1 V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。
+ ?$ o8 |; o. \: L3 N2 P
解决方法:
0 p/ x, t! H+ K打开 sourceclassdiscuzdiscuz_application.php 文件
. p% J5 v7 G7 }7 {5 u. f9 _找到
, U. Z( J8 \0 D9 Z- g
private function _xss_check() {
% x7 k$ ^% D& N I! s& W; {
& M7 h" b4 [; W% w% `; f. \ static $check = array('"', '>', '<', ''', '(', ')', 'CONTENT-TRANSFER-ENCODING');
2 f0 I6 ^) Q& T+ l3 b7 s! T$ W
1 V2 ]+ ?+ S9 `( G- A if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {
; [7 D6 U- B3 Z system_error('request_tainting');
$ e; n# M. L) K" V8 e& ~' a }
3 Z4 `1 B; e9 N& L2 s( q
4 I& Z+ k9 e$ m& @
if($_SERVER['REQUEST_METHOD'] == 'GET' ) {
7 O# ]* _9 o% X $temp = $_SERVER['REQUEST_URI'];
# P6 E7 b! B0 D1 b' u+ Q
} elseif(empty ($_GET['formhash'])) {
T3 U3 u. L" ~" V* J
$temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');
* ^: }1 R1 T% y0 d$ B6 v; L
} else {
3 e, t* d$ A% ?& r& [( \3 l# ~
$temp = '';
; u# a- X. J! s' F( J2 I
}
4 I+ m3 d, v$ e9 L% P0 y" x
/ [$ g% _1 C# b2 l4 a if(!empty($temp)) {
, A9 L3 g l# V! P9 Z' [5 T7 a- L
$temp = strtoupper(urldecode(urldecode($temp)));
' L, o: M- p: k1 Z- x( \& J1 ` foreach ($check as $str) {
! _! C, k' B" | if(strpos($temp, $str) !== false) {
* S% ?! o: o# e! C( C/ W/ j) j system_error('request_tainting');
9 }* `% K& ~7 x1 q' P
}
9 D8 O, C6 \' S9 U! q
}
3 C5 q1 w3 c2 j2 @ }
+ _. R; \$ k, D3 Z$ }) o
0 L2 w) {. `( a, e. S
return true;
2 J! }. [; j6 x" ~4 }, a}
; s ^5 J5 [ n1 P修改为
* [5 h' n8 D/ M9 S* ?private function _xss_check() {
2 \& v4 y+ `4 ?5 B $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));
7 `0 t3 X7 K7 L4 X) r# d if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {
4 l3 h- ~* Z$ F# _% W }: { system_error('request_tainting');
2 V3 @$ ^! o, W" J
}
+ x/ J4 f( i8 g) b6 \! X return true;
7 G- w H' {6 f8 X0 C5 b
}
9 Y1 ^: L$ f! r. E+ c* ]' L