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ASP上两个防止SQL注入式攻击Function

  • 作者:互联网
  • 时间:2009-06-24 17:28:14

'==========================
'过滤提交表单中的SQL
'==========================
function ForSqlForm()
 dim fqys,errc,i,items
 dim nothis(18)
 nothis(0)="net user"

 nothis(1)="xp_cmdshell"

 nothis(2)="/add"

 nothis(3)="ex***20master.dbo.xp_cmdshell"

 nothis(4)="net localgroup administrators"

 nothis(5)="select"

 nothis(6)="count"

 nothis(7)="asc"

 nothis(8)="char"

 nothis(9)="mid"

 nothis(10)="'"

 nothis(11)=":"

 nothis(12)=""""

 nothis(13)="insert"

 nothis(14)="delete"

 nothis(15)="drop"

 nothis(16)="truncate"

 nothis(17)="from"

 nothis(18)="%"
 
 'nothis(19)="@" 

 errc=false

 for i= 0 to ubound(nothis)
  for each items in re***st.Form
  if instr(re***st.Form(items),nothis(i))<>0 then
   re***nse.write("

")
   re***nse.write("你所填写的信息:" & se***r.HTMLEncode(re***st.Form(items)) & "
含非法字符:" & nothis(i))
   re***nse.write("
")
   re***nse.write("对不起,你所填写的信息含非法字符!hi***ry.back
()"">返回")
   re***nse.End()
  end if
  next
 next
end function
'==========================
'过滤查询中的SQL
'==========================
function ForSqlInjection()
 dim fqys,errc,i
 dim nothis(19)
 fqys = re***st.ServerVariables("QUERY_STRING")
 nothis(0)="net user"

 nothis(1)="xp_cmdshell"

 nothis(2)="/add"

 nothis(3)="ex***20master.dbo.xp_cmdshell"

 nothis(4)="net localgroup administrators"

 nothis(5)="select"

 nothis(6)="count"

 nothis(7)="asc"

 nothis(8)="char"

 nothis(9)="mid"

 nothis(10)="'"

 nothis(11)=":"

 nothis(12)=""""

 nothis(13)="insert"

 nothis(14)="delete"

 nothis(15)="drop"

 nothis(16)="truncate"

 nothis(17)="from"

 nothis(18)="%"
 
 nothis(19)="@" 

 errc=false

 for i= 0 to ubound(nothis)

 if instr(FQYs,nothis(i))<>0 then

 errc=true

 end if

 next

 if errc then
 re***nse.write "查询信息含非法字符!hi***ry.back()"">返回"
 re***nse.end

 end if

end function