A common anti-injection script

Source: Internet
Author: User
Put it in conn. asp.

Block address bar attacks
Url = request. servervariables ("QUERY_STRING ")
If instr (URL, ";")> = 1 then
Url = Replace (URL, ";", ";"): Response. Redirect ("? "& URL)
End if
Shield form attacks
For each item in request. Form
Stritem = lcase (server. htmlencode (request. Form (item )))
If instr (stritem, "select")> = 1 or instr (stritem, "insert")> = 1 or instr (stritem, "Update")> = 1 or instr (stritem, "delete")> = 1 or instr (stritem, "EXEC")> = 1 or instr (stritem, "declare")> = 1 then
Response. Write ("sorry, please do not enter invalid characters! ")
Response. End
End if

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