故障描述:
, g- v7 x, {+ H/ B4 ]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。
" R7 p+ @" ]' B3 }* B7 s解决方法:
, a& q4 r S3 T! c9 Y- w* T打开 sourceclassdiscuzdiscuz_application.php 文件
' i: R$ A3 t( O* p% E
找到
/ T6 B6 d5 L; I
private function _xss_check() {
* @$ Y: w& a: M$ E0 p
* c6 o2 Z0 C" Q# i static $check = array('"', '>', '<', ''', '(', ')', 'CONTENT-TRANSFER-ENCODING');
3 P" q1 c0 t( v( c( X1 V+ \
9 R! s- X4 z: ` if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {
+ b; Q) j, Z( ~ system_error('request_tainting');
/ Y* j8 c" }' m }
3 C$ G! e5 U9 g, u9 l& @
7 k! `3 T: m3 f' H if($_SERVER['REQUEST_METHOD'] == 'GET' ) {
9 \* I) ^ F7 e" x) m/ Z
$temp = $_SERVER['REQUEST_URI'];
+ T0 y w: |5 u1 S } elseif(empty ($_GET['formhash'])) {
0 S9 B \, P+ v $temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');
) b% \+ z+ z9 l' r: h! O } else {
) ]. K8 _! C" E- M3 z
$temp = '';
/ t& l- D" e" u9 M: h" n }
5 F' V* r: `6 n- Q% a; I- F. i7 q0 j2 O2 K; r A5 Q" ~! ]
if(!empty($temp)) {
# m4 u5 S! |5 R, R E
$temp = strtoupper(urldecode(urldecode($temp)));
; [+ ?3 Z4 L8 b4 e. B& [. h foreach ($check as $str) {
9 i3 _6 f- t. Y7 x. |' l if(strpos($temp, $str) !== false) {
7 S, B5 Z# C; E4 Z0 v
system_error('request_tainting');
; b( n0 F% e n }
! H( p5 W. a+ l, }+ y
}
% |: C- F; G$ Y' I }
6 Y% Y& c" F% l( s8 f+ G* w* X& g! a' H' b" w
return true;
5 D. F* u7 \( E3 j6 F}
. f! F; M" q2 X+ ?& D! h1 z+ `
修改为
6 U; z* v. Y1 C: |! }6 T$ H4 d
private function _xss_check() {
4 V) Q. d& P( o9 `
$temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));
1 Y. N5 f0 p$ \1 |$ ^1 k8 d
if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {
3 S3 R& Z' u' R% }
system_error('request_tainting');
8 B* C; H/ `- h4 Z/ ]4 P5 a }
- Q' G: M* |1 A) x3 c) [; W1 j return true;
/ n2 }0 } ^5 |0 h8 ~3 y}
4 W. Y* Q3 {% P$ V. _