Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
DB_escape_string
03-26-2014, 06:46 PM, (This post was last modified: 03-26-2014, 06:57 PM by icedlava.)
#63
RE: DB_escape_string
(03-26-2014, 06:42 PM)Uhuru Wrote: It may be over familiarisation on my part but I find that something like:

$SQL = "SELECT foo from bar WHERE name ='Tim'";
$Result = DB_Query($SQL, $db); //Actually the $db is unnecessary as it is a global
while ($MyRow = DB_fetch_array($Result)) {
echo $MyRow['foo'];
}

nicely describes what is happening. I found the new code you did less obvious, but as I say it may be just over familiarisation.
Tim I totally agree with you. Bind vars was never a hit for clarity compared to what the simple sql statement is. However what you have posted is insecure depending on what happens in DB_Query. Please see my last summary post if you will - i think it came in at about the same time you posted.

Cheers,


There are lots of references about on SQL injection and best practice. Perhaps one authoratative site has a specific section on SQL injection (and note this is just one type of security vulnerability ):

https://www.owasp.org/index.php/SQL_Inje...heat_Sheet

In particular I quote:
Quote:This third technique is to escape user input before putting it in a query. If you are concerned that rewriting your dynamic queries as prepared statements or stored procedures might break your application or adversely affect performance, then this might be the best approach for you. However, this methodology is frail compared to using parameterized queries and we cannot guarantee it will prevent all SQL Injection in all situations. This technique should only be used, with caution, to retrofit legacy code in a cost effective way. Applications built from scratch, or applications requiring low risk tolerance should be built or re-written using parameterized queries.
Reply


Messages In This Thread
DB_escape_string - by icedlava - 03-06-2014, 05:42 PM
RE: DB_escape_string - by serakfalcon - 03-06-2014, 06:26 PM
RE: DB_escape_string - by Forums - 03-06-2014, 06:26 PM
RE: DB_escape_string - by icedlava - 03-09-2014, 10:19 PM
RE: DB_escape_string - by Forums - 03-10-2014, 04:44 AM
RE: DB_escape_string - by icedlava - 03-10-2014, 10:31 AM
RE: DB_escape_string - by serakfalcon - 03-10-2014, 04:16 PM
RE: DB_escape_string - by icedlava - 03-10-2014, 04:38 PM
RE: DB_escape_string - by serakfalcon - 03-06-2014, 06:27 PM
RE: DB_escape_string - by Forums - 03-10-2014, 06:56 PM
RE: DB_escape_string - by icedlava - 03-10-2014, 07:13 PM
RE: DB_escape_string - by Forums - 03-10-2014, 10:52 PM
RE: DB_escape_string - by Forums - 03-11-2014, 05:03 AM
RE: DB_escape_string - by serakfalcon - 03-11-2014, 01:26 PM
RE: DB_escape_string - by Forums - 03-11-2014, 05:43 PM
RE: DB_escape_string - by weberp - 03-14-2014, 08:25 PM
RE: DB_escape_string - by icedlava - 03-14-2014, 08:33 PM
RE: DB_escape_string - by weberp - 03-14-2014, 09:02 PM
RE: DB_escape_string - by phil - 03-12-2014, 02:59 PM
RE: DB_escape_string - by icedlava - 03-12-2014, 03:39 PM
RE: DB_escape_string - by Forums - 03-12-2014, 08:20 PM
RE: DB_escape_string - by serakfalcon - 03-12-2014, 09:01 PM
RE: DB_escape_string - by icedlava - 03-12-2014, 09:08 PM
RE: DB_escape_string - by serakfalcon - 03-13-2014, 12:39 AM
RE: DB_escape_string - by icedlava - 03-13-2014, 11:55 AM
RE: DB_escape_string - by phil - 03-13-2014, 12:49 PM
RE: DB_escape_string - by icedlava - 03-13-2014, 01:03 PM
RE: DB_escape_string - by phil - 03-13-2014, 05:27 PM
RE: DB_escape_string - by icedlava - 03-13-2014, 05:52 PM
RE: DB_escape_string - by phil - 03-13-2014, 06:01 PM
RE: DB_escape_string - by icedlava - 03-13-2014, 06:39 PM
RE: DB_escape_string - by weberp - 03-16-2014, 03:19 AM
RE: DB_escape_string - by serakfalcon - 03-20-2014, 08:31 PM
RE: DB_escape_string - by weberp1 - 03-21-2014, 12:04 AM
RE: DB_escape_string - by serakfalcon - 03-21-2014, 01:50 AM
RE: DB_escape_string - by icedlava - 03-20-2014, 10:29 PM
RE: DB_escape_string - by serakfalcon - 03-20-2014, 11:48 PM
RE: DB_escape_string - by icedlava - 03-21-2014, 11:04 AM
RE: DB_escape_string - by icedlava - 03-21-2014, 01:08 PM
RE: DB_escape_string - by serakfalcon - 03-21-2014, 04:51 PM
RE: DB_escape_string - by icedlava - 03-21-2014, 05:48 PM
RE: DB_escape_string - by serakfalcon - 03-21-2014, 06:54 PM
RE: DB_escape_string - by icedlava - 03-22-2014, 12:31 AM
RE: DB_escape_string - by serakfalcon - 03-22-2014, 12:55 AM
RE: DB_escape_string - by phil - 03-22-2014, 03:20 PM
RE: DB_escape_string - by serakfalcon - 03-22-2014, 04:28 PM
RE: DB_escape_string - by phil - 03-23-2014, 09:00 AM
RE: DB_escape_string - by Uhuru - 03-23-2014, 08:27 PM
RE: DB_escape_string - by icedlava - 03-26-2014, 03:22 AM
RE: DB_escape_string - by serakfalcon - 03-23-2014, 06:35 PM
RE: DB_escape_string - by Uhuru - 03-26-2014, 08:05 AM
RE: DB_escape_string - by icedlava - 03-26-2014, 12:51 PM
RE: DB_escape_string - by phil - 03-26-2014, 01:40 PM
RE: DB_escape_string - by icedlava - 03-26-2014, 01:57 PM
RE: DB_escape_string - by Uhuru - 03-26-2014, 05:30 PM
RE: DB_escape_string - by icedlava - 03-26-2014, 06:04 PM
RE: DB_escape_string - by serakfalcon - 03-26-2014, 06:20 PM
RE: DB_escape_string - by icedlava - 03-26-2014, 06:27 PM
RE: DB_escape_string - by Uhuru - 03-26-2014, 06:42 PM
RE: DB_escape_string - by icedlava - 03-26-2014, 06:46 PM
RE: DB_escape_string - by Uhuru - 03-26-2014, 06:34 PM
RE: DB_escape_string - by serakfalcon - 03-26-2014, 06:40 PM
RE: DB_escape_string - by icedlava - 03-26-2014, 06:41 PM
RE: DB_escape_string - by serakfalcon - 03-26-2014, 07:38 PM
RE: DB_escape_string - by icedlava - 03-26-2014, 08:01 PM
RE: DB_escape_string - by phil - 03-27-2014, 07:24 AM
RE: DB_escape_string - by icedlava - 03-27-2014, 11:56 AM
RE: DB_escape_string - by serakfalcon - 03-27-2014, 01:11 PM
RE: DB_escape_string - by icedlava - 03-27-2014, 01:39 PM
RE: DB_escape_string - by serakfalcon - 03-27-2014, 03:32 PM
RE: DB_escape_string - by icedlava - 03-27-2014, 03:38 PM
RE: DB_escape_string - by Exsonqu_Qu - 03-27-2014, 06:00 PM
RE: DB_escape_string - by Uhuru - 03-27-2014, 06:50 PM
RE: DB_escape_string - by Exsonqu_Qu - 03-28-2014, 12:26 PM
RE: DB_escape_string - by phil - 03-27-2014, 06:57 PM
RE: DB_escape_string - by icedlava - 03-27-2014, 09:06 PM
RE: DB_escape_string - by Uhuru - 03-27-2014, 09:14 PM
RE: DB_escape_string - by icedlava - 03-27-2014, 09:21 PM
RE: DB_escape_string - by Exsonqu_Qu - 03-28-2014, 12:44 PM
RE: DB_escape_string - by Uhuru - 03-27-2014, 10:48 PM
RE: DB_escape_string - by icedlava - 03-27-2014, 10:55 PM
RE: DB_escape_string - by Uhuru - 03-27-2014, 11:44 PM
RE: DB_escape_string - by icedlava - 03-27-2014, 11:55 PM
RE: DB_escape_string - by agaluski - 03-27-2014, 11:53 PM
RE: DB_escape_string - by serakfalcon - 03-28-2014, 01:31 PM
RE: DB_escape_string - by icedlava - 03-28-2014, 03:34 PM
RE: DB_escape_string - by Uhuru - 03-28-2014, 07:33 PM
RE: DB_escape_string - by phil - 03-28-2014, 08:05 PM
RE: DB_escape_string - by Uhuru - 03-31-2014, 04:27 PM
RE: DB_escape_string - by serakfalcon - 03-31-2014, 05:47 PM

Forum Jump:


Users browsing this thread: 1 Guest(s)