故障描述:
3 W8 _/ f$ l' h' k3 n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。
- i, P, \5 o4 g% A1 E+ S解决方法:
' X6 V8 i$ L- d. ?$ @- d( c) _3 x打开 sourceclassdiscuzdiscuz_application.php 文件
`* ?% s; K9 ]8 c# k, F
找到
# Y9 l$ G4 g. W% Y
private function _xss_check() {
0 F m( Z: g8 @# Y8 }( R
3 T! F* s' J3 ?) s, u* B
static $check = array('"', '>', '<', ''', '(', ')', 'CONTENT-TRANSFER-ENCODING');
9 R b7 x( z* ^5 Z* J
, f: l, A% N/ U* \
if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {
* D- t$ S3 D8 R) p k system_error('request_tainting');
8 ~! ~0 @7 x2 W' {
}
# x" Z! _; B* v
! l' V9 N1 H3 x4 N Q
if($_SERVER['REQUEST_METHOD'] == 'GET' ) {
9 x: ] ?1 v! V" h$ S* \/ F $temp = $_SERVER['REQUEST_URI'];
, x8 v n( m3 s
} elseif(empty ($_GET['formhash'])) {
& U3 w8 H; D9 H4 t4 Z2 i $temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');
6 F# R A7 P) y& q
} else {
. _/ G1 a' ~0 G# w $temp = '';
3 w9 h9 Q `8 [& ?% C }
* \7 l5 y' E$ s* ?, r J" v7 l% Q1 v: V( D8 l2 w( B4 m* A) e3 x; \ r
if(!empty($temp)) {
& V' T& c p$ V $temp = strtoupper(urldecode(urldecode($temp)));
- _* k1 y9 T" m6 J- x
foreach ($check as $str) {
' m/ X& U, i- o4 r2 b% p if(strpos($temp, $str) !== false) {
' a/ v+ Q9 A* C& G. ?
system_error('request_tainting');
0 s$ J6 Z# J# N$ X" m" c% F }
0 a9 O) K- I3 O1 U5 R! E: y; L
}
+ \9 J9 }, h7 r: k6 m: c5 i! e
}
3 k( O" `. U2 ^' d1 ]+ h6 [
0 O' u8 s) o: v0 M return true;
( q/ A6 |* F) ^" Q8 F
}
% k7 c' i; R) s, h% [9 R修改为
9 k1 U( J/ R( e8 ^- Q
private function _xss_check() {
5 P5 S$ Q1 K( f9 I# e $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));
* A' p3 p* i$ @! l* H, O
if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {
6 Z* ^! c' E" W9 `1 E) I6 @ system_error('request_tainting');
: r2 E% a* ~9 m
}
& e' T" V1 L- G2 p- n return true;
# y3 i( c6 O; ~8 J8 o1 G6 e}
v; G3 B2 T4 g, P" C8 p0 Q& c