故障描述:
" E6 I7 t6 D* i5 U4 B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 {2 U& f0 ^/ v; W解决方法:
$ d1 T/ Q+ b* [2 Q$ _
打开 sourceclassdiscuzdiscuz_application.php 文件
5 O+ N. N. _# Y0 e7 y8 R$ C. [找到
0 c) T* r0 ]# H$ l3 u) v4 x b, ^0 iprivate function _xss_check() {
6 S" W' x2 i5 K W- F9 N1 z% B$ o8 x3 t' h; h* Q0 [
static $check = array('"', '>', '<', ''', '(', ')', 'CONTENT-TRANSFER-ENCODING');
, L0 P; ]6 R& N" f1 _
7 ~( l. z! _4 ?9 w4 t8 U8 z% O
if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {
% j; m. s+ L3 u" f
system_error('request_tainting');
3 g+ B* n) O _$ U# y }
2 Y# T0 v) A/ D+ q) p
0 a) M0 u' n8 G- H* t; D7 t
if($_SERVER['REQUEST_METHOD'] == 'GET' ) {
% E5 u% C l2 s& V
$temp = $_SERVER['REQUEST_URI'];
/ G9 ^: H' o3 O
} elseif(empty ($_GET['formhash'])) {
* ^ W8 o! o* u1 } $temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');
5 F, G" u* p8 ^( S7 T, |! b } else {
7 P; n& u2 F- ?- a' _3 f4 g
$temp = '';
2 m- z$ {2 N3 r( G ?- k/ X
}
# p% f1 b) I! j2 `% S4 f$ N% B
* J, o. O. T! d; J if(!empty($temp)) {
; S( o7 t e/ t $temp = strtoupper(urldecode(urldecode($temp)));
! F+ b6 G* n: N* t* T foreach ($check as $str) {
/ O, s7 A- `3 t$ I/ O
if(strpos($temp, $str) !== false) {
: s" ~* d9 v% z
system_error('request_tainting');
" g+ E y+ B6 D3 k+ T0 ^ }
, d: I6 K. x7 @. v0 M! S
}
% w4 X( h) x- ~ x; S% F
}
, q4 |; A" N& ~& K
4 x/ y+ K% ?7 ?. d% b) h return true;
) J/ O* y0 k j. U; R1 N' Q
}
+ Z: w/ H+ z7 K4 U8 G修改为
# T0 ^/ L. `7 A: x$ M# E+ n2 P4 ?) dprivate function _xss_check() {
" B" [9 @6 H; f$ D& f
$temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));
8 S# z1 Y+ R7 O$ O/ j" l% g' B! N
if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {
/ H; G \: ~' ~" d/ e& R) L9 S5 Y system_error('request_tainting');
( v% D- m6 V7 X3 f9 g( j7 {4 @& m
}
! H; e# M- Y6 B" y: b' w w% _ return true;
7 T# d6 O7 q) i) x}
8 B8 ^3 c* q" l+ X