故障描述:
6 ^+ w) F, t9 q0 p
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。
0 e1 }* ~: i' M* y, R) z解决方法:
- l z" ~, K) L Q0 j打开 sourceclassdiscuzdiscuz_application.php 文件
2 G& X$ {/ |8 C7 n B6 j
找到
) \2 `6 n, Q( o. ?/ [
private function _xss_check() {
& N2 d+ X2 U9 ^7 [
~% y3 V: s# M, }& L: N static $check = array('"', '>', '<', ''', '(', ')', 'CONTENT-TRANSFER-ENCODING');
( L! N' s# q6 n- _: {. ^3 N7 A+ u
if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {
: m/ N% M# E6 G* ~. g) g0 u
system_error('request_tainting');
3 @ Y- R% h* A- `$ @4 U
}
/ i3 A% o# ^% ^9 l) A
! y3 m ]& v( Z+ i5 ~+ v
if($_SERVER['REQUEST_METHOD'] == 'GET' ) {
6 `* I7 F" U3 `$ b* w
$temp = $_SERVER['REQUEST_URI'];
! v2 s w' W" \& W( `" ^) }6 I
} elseif(empty ($_GET['formhash'])) {
, g8 q1 [# h. f! i; {0 r9 z
$temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');
& {/ H! Z9 H+ e! Z* c } else {
7 q, y: Q# e" V3 Y) L9 Y $temp = '';
) s o! @0 i: A8 s
}
: j/ K; b8 F, ?1 y, A! x
* i/ F, ^3 ^9 P6 n. Y2 q# `
if(!empty($temp)) {
/ J/ N3 H1 W7 O" g/ b) ^ $temp = strtoupper(urldecode(urldecode($temp)));
) H4 X. N$ P. e: s
foreach ($check as $str) {
" u2 \/ s' c7 ? m$ t
if(strpos($temp, $str) !== false) {
. x9 N' A& K) v f; Z4 i1 w0 U% f d6 i
system_error('request_tainting');
; z6 W6 G2 ^/ V" e4 C
}
: S9 i: m2 B, v1 _5 l5 I }
! H' P. N: z! V& M, Z }
1 A/ y% B R. @3 L# q" ~
* w& i+ q. t& c, X5 |' g return true;
! O6 |% Y7 Z+ ~; n3 u
}
- S( I5 G. T! c1 |% T
修改为
' K6 N) v3 c v# L4 Z( z9 k# h8 V7 [private function _xss_check() {
6 {/ J# N+ h9 d3 i $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));
1 V7 t! L: R0 ^' V7 ?( q* [- N W K
if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {
3 W% h5 @; W7 \# J% _5 x
system_error('request_tainting');
& o! P9 H! c/ m5 b- H5 ] }
: k, z$ a" P9 {& A6 d4 j
return true;
2 M8 i- n4 n8 @ s, u9 e2 Y, C
}
! [) V f" p9 c6 O: n: M1 Z0 r: C