故障描述:
- [& y; C1 v, N7 ~. R4 d
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。
$ D! a8 L0 Z! F4 p5 O( K: l解决方法:
/ N7 s L; G) Q g8 V* ?2 c% p% i打开 sourceclassdiscuzdiscuz_application.php 文件
, R7 A! P2 Z- D找到
0 t7 r' X* o$ v0 Mprivate function _xss_check() {
; M# O1 A& H! f* m9 L
6 g: ?% D% H z: B, g: f
static $check = array('"', '>', '<', ''', '(', ')', 'CONTENT-TRANSFER-ENCODING');
9 x( s* s. g' \9 Z1 m" ^- i
; E4 K3 e' p+ A' k9 T1 L
if(isset($_GET['formhash']) && $_GET['formhash'] !== formhash()) {
1 z9 r: p( U8 _& w
system_error('request_tainting');
% x; ]3 M3 Y0 C5 p4 w' T& `5 v
}
2 l: I! ?& a9 C8 z% k R; ^' w
/ n7 e5 L+ g, T6 H; c. d if($_SERVER['REQUEST_METHOD'] == 'GET' ) {
2 W) D4 n3 p+ H) f" W $temp = $_SERVER['REQUEST_URI'];
1 I/ B# b! e0 c3 r9 S& V6 z
} elseif(empty ($_GET['formhash'])) {
" m9 g0 ]$ H2 d5 c Z# \
$temp = $_SERVER['REQUEST_URI'].file_get_contents('php://input');
' A8 C4 F5 r9 L# v2 D8 @8 j
} else {
, m+ z. ]7 Q- y: R q
$temp = '';
1 J! f9 q* Z, ^* b3 E
}
/ }, s% G6 M1 u3 A+ o0 F7 [) N2 q t) i3 n
if(!empty($temp)) {
3 _% X- ~3 F5 }( o) s, J I
$temp = strtoupper(urldecode(urldecode($temp)));
7 j7 J) x$ @7 ?/ y
foreach ($check as $str) {
0 L2 S3 B8 |. Y! W$ |
if(strpos($temp, $str) !== false) {
% B! h/ _1 L9 e6 k system_error('request_tainting');
7 l* a2 v" ~$ z* M- a
}
9 p* g$ Z3 ]- m/ a( z( r, o" }6 s }
: G+ y I9 Q% Y }
/ x- R: S" i# ]! ]7 B8 M; Y% x1 p0 g }- i! _/ F
return true;
2 g7 s# J! L p. O
}
% F& q8 v6 g8 ]! h; O) l修改为
# e0 V1 _ v& C8 f: C+ Z
private function _xss_check() {
6 z' j2 Q& ]0 H! q $temp = strtoupper(urldecode(urldecode($_SERVER['REQUEST_URI'])));
8 z! |5 Q8 l& x; b3 \2 Y4 K. o7 O
if(strpos($temp, '<') !== false || strpos($temp, '"') !== false || strpos($temp, 'CONTENT-TRANSFER-ENCODING') !== false) {
- k; M# @1 O, `# a
system_error('request_tainting');
9 J9 N' r7 |% q+ U b }
* u& V3 ~- L6 Z0 X! R* ]3 p
return true;
( x! |9 Y$ z( G) k" v}
+ M9 J) D: _+ b( y. o2 p4 w9 U0 V6 f