故障描述:
/ l7 W9 b' I% _/ ?0 P3 A f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# t( d' r' `
解决方法:
) A) ^( @# Z* W. l8 V+ E打开 sourceclassdiscuzdiscuz_application.php 文件
, G0 e. d. @7 P) k/ f" Q找到
; \! u' G) ?- ^1 ]3 S" Lprivate function _xss_check() {
s1 s' {. S( {+ L' Y3 L' t* I7 b. q4 ^# O6 B
static $check = array('"', '>', '<', ''', '(', ')', 'CONTENT-TRANSFER-ENCODING');
( Z8 L8 ^4 ^' [2 F) J+ A; S! ~ { y- _4 y5 ] d
if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {
& u+ S1 @8 ?! x5 {" [
system_error('request_tainting');
; Q: r2 r1 `" O4 a6 C
}
+ ?4 x% {9 J& C. n; D
$ R4 }: J3 J% _# X3 I& E
if($_SERVER['REQUEST_METHOD'] == 'GET' ) {
, P, U/ k( b& n Q $temp = $_SERVER['REQUEST_URI'];
! G4 B( L3 V/ O( B9 v } elseif(empty ($_GET['formhash'])) {
) z+ v! j0 C- i6 H% k $temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');
( n' t# B* F4 o) ~ } else {
8 f& a4 ~& i$ P0 A4 U $temp = '';
& @! G3 [8 b, f, l, b4 r2 i
}
" S4 C6 l6 L: f* O9 Z9 E
) W5 [5 M1 H! c' @7 P" x- t
if(!empty($temp)) {
4 [1 y% k+ c( C- K
$temp = strtoupper(urldecode(urldecode($temp)));
9 j1 c% m5 R- p0 l foreach ($check as $str) {
* d5 K# h' O! c# T8 c if(strpos($temp, $str) !== false) {
2 A2 J7 r7 g/ w9 C( \. K4 e system_error('request_tainting');
8 a3 v3 l! A, ^3 p }
8 E J& c: {7 e6 R4 I4 ]
}
+ {' V6 L; r$ F0 E# I, ^* i
}
% M1 E9 ]1 b R
6 f: [ B5 S- t+ }$ G' a7 {* X return true;
- s/ n! B/ Z2 v, z2 B* H}
* J/ w2 k; U+ H! E+ |修改为
- O- J% K; Y* j3 lprivate function _xss_check() {
$ J6 n4 k/ c; T9 K$ O) {$ n" a $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));
2 ^" ]) o7 W4 E/ c
if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {
: |9 E9 L0 m1 c$ ?
system_error('request_tainting');
5 J3 j8 U2 y5 ~& |7 E/ M
}
4 Y9 Q7 ?7 Y& g return true;
' T1 \6 J, W7 U- _ X- n" S
}
' v6 U' G: v" Q