故障描述:
% j! o! g! @) P4 {3 C
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。
/ a. C% _& n6 N: x$ N% j: b# C解决方法:
0 g# z4 o# f/ F9 J! I
打开 sourceclassdiscuzdiscuz_application.php 文件
6 S+ ^, C, R# @7 }8 q找到
7 @( a9 R/ T5 n( k% O
private function _xss_check() {
& V$ d0 T3 Q$ V8 {# o1 j
% m, }+ h' ~7 Q, q static $check = array('"', '>', '<', ''', '(', ')', 'CONTENT-TRANSFER-ENCODING');
8 m( G( t% C% x e' D
- ?1 [( O7 y, M! J. x+ N6 O4 ]3 X7 r if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {
9 b! \; c; ]0 h n" ]
system_error('request_tainting');
2 U3 p, {! y8 L
}
' h+ @: x( B& s# D
+ X4 N5 q% ^( I! V% [ if($_SERVER['REQUEST_METHOD'] == 'GET' ) {
8 o9 W1 H# o) e $temp = $_SERVER['REQUEST_URI'];
( n* i2 b1 k$ ]; `% Q, m
} elseif(empty ($_GET['formhash'])) {
* J' Y- e1 _: j$ g $temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');
7 S ^# B) {2 U( j" n0 N# U: M
} else {
' `) E3 _ x/ C
$temp = '';
' {/ n( w, ?' C; S [
}
3 K& v. t. T( J$ d% n$ J
3 }- ~0 ]0 S% Y, Q( y if(!empty($temp)) {
7 Z3 j2 r" H# p* c* n
$temp = strtoupper(urldecode(urldecode($temp)));
5 M$ L7 @: S5 H
foreach ($check as $str) {
2 C7 s! S2 b! C, A7 `& p0 {
if(strpos($temp, $str) !== false) {
+ F/ l( M2 P6 \) @5 e* S system_error('request_tainting');
# ?$ q7 D- P9 I0 h3 z) P
}
' d6 P! j" s6 U- T }
1 Q/ l( q4 d7 ]; {: `0 ]' x& } }
& C" f7 L: ]. i3 H% I. j9 ^4 d, D* n! |$ d' |( `0 ]
return true;
0 G m* K& C8 v
}
+ l& ]) d9 x3 i1 R: ]
修改为
# E$ R+ I7 W: `+ O e, }
private function _xss_check() {
! Q3 W/ o; g) o. q, Z/ M
$temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));
$ |; ]. y$ h' W
if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {
( d8 P6 Z& d8 B& N
system_error('request_tainting');
. j9 C) _# X5 ?3 d }
# s N2 V9 E# U3 ]) M! n return true;
) e8 t7 G: Z, I' I1 x
}
: N9 U/ ], ?4 D; }# S6 \! G1 U