故障描述:
$ C/ F% s9 n7 {1 p8 | j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。
/ {5 O$ T% l. ^: R2 D
解决方法:
! P1 \+ p6 a3 q, K: F4 a打开 sourceclassdiscuzdiscuz_application.php 文件
L. ?- T! E4 p- @. v: J
找到
# |4 E4 E/ q( g' u, C* L4 g
private function _xss_check() {
2 J% v% u" S S/ g
& Q5 T, q3 `) `+ H( [! _) x {' N
static $check = array('"', '>', '<', ''', '(', ')', 'CONTENT-TRANSFER-ENCODING');
; L7 l1 K6 Y5 f5 v+ J9 k
9 `# O3 I1 o% f; B
if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {
$ V1 D. R7 G X: {) f5 X- [: |
system_error('request_tainting');
: c7 l0 d0 E. s- c- k }
6 t! z$ B( E: P g7 }) j
" G3 |. H- J' I$ E* l" n$ u3 c if($_SERVER['REQUEST_METHOD'] == 'GET' ) {
) V& S# O6 ]( G! [
$temp = $_SERVER['REQUEST_URI'];
/ n5 o2 p, D( N1 n7 x$ M1 x' D& g0 K" |0 X } elseif(empty ($_GET['formhash'])) {
) }, L+ j% k7 G6 L! }
$temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');
8 q1 m# `. U5 a F: V) [ } else {
0 W: o9 O8 I) K, s $temp = '';
) x8 ], o; g" z" P+ o2 r }
0 s6 ~. C9 b: v, @, D5 Z
5 ?* l5 Y4 r* h: W" f if(!empty($temp)) {
. ~5 c. P" {! |) l
$temp = strtoupper(urldecode(urldecode($temp)));
h* s) v8 ?0 t3 Y, k foreach ($check as $str) {
1 C% e3 e) f. ~2 \" j! {" ` if(strpos($temp, $str) !== false) {
9 j9 q$ v+ R# v: g7 X+ J
system_error('request_tainting');
& g3 ]. w k8 n( _
}
% w3 B+ |. j8 n8 ~ }
. g4 `$ ^" D- W5 ^% `4 F" K: }* O
}
: Z7 ~( o' d$ F
! X/ n( S" g; L' x
return true;
, i0 V, g9 d% y/ I9 T}
; a5 d- w2 `5 r* G i修改为
& v _& M' a4 u1 Mprivate function _xss_check() {
' ~) L- K1 F' \9 b9 i! X
$temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));
* o |# m* a1 }& e' S2 b if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {
) e- l8 R, B4 K) p+ w2 B
system_error('request_tainting');
6 `0 z/ r" j) K p& c }
3 D$ H' ^* B' W. |* N return true;
. t W* F: `6 W- x
}
8 h! V" I# @+ H