故障描述:
# g9 N. D0 C. X4 k( 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。
9 e+ E. Y5 X" X* Q. K {
解决方法:
% ~2 I# D! O( G& }+ d, s }打开 sourceclassdiscuzdiscuz_application.php 文件
. N1 u; D$ e( _ C7 i
找到
7 p/ K5 w, f8 f9 bprivate function _xss_check() {
* x/ L0 }0 j3 G+ y. Y6 y- R- |# Q/ O7 z: S
static $check = array('"', '>', '<', ''', '(', ')', 'CONTENT-TRANSFER-ENCODING');
$ \5 q# O8 T5 [! [
/ W) [& m8 Q; Q- i8 j; P+ v; L2 R
if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {
: Y$ D% ~- C( A# s( e5 { system_error('request_tainting');
& N% J& f3 A- m2 y* S J. J# L
}
; O& M; o1 Y/ l2 }1 c' v
1 u8 Z, T% P, h ^/ X if($_SERVER['REQUEST_METHOD'] == 'GET' ) {
6 N7 t% a2 w: [. z# w- r
$temp = $_SERVER['REQUEST_URI'];
! S6 A7 x& R- w5 X+ t* @. ]6 p* R } elseif(empty ($_GET['formhash'])) {
5 _/ J& O6 F0 A- A) ~, Z $temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');
! B6 F; u) a7 O- t+ I+ |: F } else {
: H( G0 |, u- O* z, \& b O $temp = '';
; L2 A! P1 h; ^( r* q* p) } }
( H" Y& d: L0 W2 H, N4 N
) U! W# r. ]7 D8 M6 ?
if(!empty($temp)) {
4 G. E6 ^2 H$ D& s1 [8 V" [5 _
$temp = strtoupper(urldecode(urldecode($temp)));
3 n+ n% T0 E( j% M& B
foreach ($check as $str) {
2 X a3 M/ Y1 }) _ if(strpos($temp, $str) !== false) {
! H8 B5 @4 P/ \& _% {- u system_error('request_tainting');
5 g& [9 k9 a0 Z+ S
}
2 |- `% z8 I" W0 U% F
}
6 W9 A9 i( C& F1 m0 E }
& Y8 \5 ` ^" E3 n
0 X8 X; W' T! `1 ~* H6 S8 m
return true;
( M& P( \6 h9 d8 X/ u
}
, W% c; a' L9 T% P修改为
# o2 @9 e w7 b0 cprivate function _xss_check() {
C( x# t) l* Y) O! j# n- o8 g' ]0 n $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));
% h5 \- `' m0 {4 ?2 a& z if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {
) @4 D. y: f1 f; ^$ Q1 h
system_error('request_tainting');
1 E- Y1 c& I3 a }
) Z4 n% j0 u3 n0 P return true;
" M9 c& K; }( h2 s
}
0 q2 m, B/ q9 g8 l9 q