故障描述:
2 t6 y& q$ ?( i. O7 @3 y4 N
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。
! b6 M( q5 y' q4 ~ {解决方法:
3 u0 @: V7 Q) b1 K1 l# ]1 P: z
打开 sourceclassdiscuzdiscuz_application.php 文件
6 L( n# `) h" m- I; Q
找到
2 o/ O6 {0 U! m8 \2 p- e3 S: T$ h
private function _xss_check() {
3 O3 _2 f$ ?" x3 a( V- V. l! T
' k& n n. w* B$ @5 |7 f static $check = array('"', '>', '<', ''', '(', ')', 'CONTENT-TRANSFER-ENCODING');
- i- H5 |* |1 Y1 [& C* A( u
. z) C8 N2 M2 A
if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {
' p2 T9 i+ A! ]! c$ H
system_error('request_tainting');
& E( n: }. Y7 s
}
% S3 C5 @9 i- O9 O! q2 z1 I5 y$ m. w1 v/ {
if($_SERVER['REQUEST_METHOD'] == 'GET' ) {
7 [9 v- F7 E. C" `! E1 e $temp = $_SERVER['REQUEST_URI'];
5 b8 f" {. i1 L+ x* ~: ^
} elseif(empty ($_GET['formhash'])) {
8 G, w. R g: s g6 t
$temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');
, }+ l) D; m" a) [( B4 T } else {
! \3 \+ Q' i: |! R2 s
$temp = '';
2 ^6 T# A K2 n, k3 \$ I) b: L
}
* l p( w" C4 Q( A* p8 V$ t
% b1 r* g' W" |- y: g, {
if(!empty($temp)) {
3 n4 ^6 \! r* S: Q
$temp = strtoupper(urldecode(urldecode($temp)));
j( f- v: [2 Z1 j8 i foreach ($check as $str) {
8 U2 r _# Y) D) Z1 S: d5 w1 _
if(strpos($temp, $str) !== false) {
2 v' Z5 G' E7 y. L system_error('request_tainting');
1 m+ z2 I- x# n" h8 M* w# v
}
1 W+ R& D5 W/ I5 T }
- J' u; s' ]; g+ c, O( w, U
}
: e3 @/ L9 D9 s2 I: Z5 x- F3 K' n3 Q' |
return true;
; J3 Q* p) [# b6 W& m: X3 y! G
}
- u9 Y) F" l, ]* {9 r
修改为
2 _) V7 {! |- {- Fprivate function _xss_check() {
. l$ W7 p. G/ {$ H S6 s1 z7 ]
$temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));
S) {6 v3 x' u* U- P9 _
if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {
2 `3 s$ M/ W8 Z system_error('request_tainting');
) f7 _( ], n5 b P9 k) b. u# |
}
% m* [. M o; X0 W0 O$ R return true;
* j% ]6 _( s% I. C- o" u
}
# o8 ]4 {( f! c, f( ~) P' h