Category Filtering: 'SQL'

Remove Filter

Does OOP Encourage RBAR?

Posted by Brad Wood
Aug 17, 2008 03:56:00 UTC
I've been staring at my computer monitor trying start this paragraph for about 10 minutes now, so I'm just going to start typing. I've been thinking about system design. Organization versus performance. Design patterns versus efficiency. We adopt some code without thought to its performance because we're talking about milliseconds, and the readability, organization, and structure gains our apps enjoy are well worth it. I'm not sure that is always the case though, and we don't notice it until too late.

SQLi Is Back With A Small TwIST

Posted by Brad Wood
Aug 16, 2008 19:40:00 UTC
Well, after a brief hiatus, the SQL Injection attacks have reconvened with a small change. They have modified the capitalization of a couple words in the URL. "DECLARE" has become "DeCLARE", and "EXEC" has become "ExEC". This is obviously to get around people who employed case-sensitive filtering mechanisms.

My analysis of the SQL injection zombies

Posted by Brad Wood
Aug 10, 2008 08:46:00 UTC
So as the SQL injection attacks have rained down on my server for the past few days, my logs have been steadily filling up with data about the requests. Frankly, the data probably can't be trusted, it's all totally un-scientific, and doesn't really lead me any closer to the people responsible for the attacks. Regardless, I think it's pretty interesting. I've compiled some graphs and stats here.

Watch those relative URLs with SES

Posted by Brad Wood
Aug 09, 2008 10:21:00 UTC
I love infinite loops. They're sort of the black hole of programming. No one really knows what you code does when it reaches the last iteration of an infinite loop, but I speculate it has something to do with String Theory and unbounded time and space increasing proportionately to the rate of dense matter being compressed by gravitational forces so strong even light can't escape. Well, that's what I came up with off the top of my head anyway. Speaking of infinite loops, I found one happening on my server today.

Operation cf_SQLProtect: 16,000 cfqueries protected

Posted by Brad Wood
Aug 01, 2008 06:25:00 UTC
I have confirmed at least 16,000 individual cfquery tags which have been protected from SQL injection vulnerabilities by having cfqueryparam added to them.

MySQL performance: INNER JOIN vs. sub-select

Posted by Brad Wood
Aug 01, 2008 04:51:00 UTC
I ran into an interesting behavior with MySQL this week. I was helping someone speed up a slow page and a sizable increase in performance was achieved by simply re-arranging the SQL statement. The page was calling a SQL statement inside of a loop-- probably around 150 times on a page load. My initial idea (and still the best long-term one I think) was to gather all the information from the database in a single cfquery and not hit the database over and over. That approach would have required quite a lot more refactoring of code, so first we tried to squeeze some better performance out of the SQL already being called.

cfqueryparam: it's not just for security-- also, when NOT to use it

Posted by Brad Wood
Jul 26, 2008 16:33:00 UTC
I generally don't care to write about topics that have already had the stuffing blogged out of them. However, I've still seen some of these questions floating around and I figure it never hurts to have more than one place on the 'net talking about it. The two things I wanted to cover real quick are how cfqueryparam may (or may not) enhance the performance of your queries. Also, when does criteria in a query NOT need a cfqueryparam.

Today is Operation cf_SQLprotect

Posted by Brad Wood
Jul 25, 2008 20:45:00 UTC
Today is the day. Unless you can bet money that every cfquery in your application is completely safe from SQL inject attacks you need to stop what you are doing and scan your sites. I have reviewed two cfqueryparam scanners to find vulnerable queries and one of them will even fix 95% of your code for you! If your boss asks what you are doing, tell him you found a security vulnerability being exploited and it needs to be closed. He'll understand.

Announcing the first ever International Operation cf_SQLprotect

Posted by Brad Wood
Jul 24, 2008 12:58:00 UTC
Hear Ye, Hear Ye! I hereby declare Friday, July 25th as the first ever International Operation cf_SQLprotect. In response to the massive amount of SQL injection attacks in the past few weeks I want the ColdFusion community to be doing our darndest to keep our applications safe from harm. This Friday, I want everyone who has a site big or small, well known or obscure, to join the world and scan their code base for vulnerable queries and fix them.

Parameterize your queries without lifting a finger

Posted by Brad Wood
Jul 24, 2008 11:05:00 UTC
Tuesday I blogged Peter Boughton's QueryParam Scanner from RiaForge. Today I'm taking a look at Daryl Banttari's Query Parameterizing tool. Daryl's scanner has an interesting twist. Not only does it find unparameterized queries, it will automatically FIX them FOR you! Daryl Banttari works for WebApper and is part of the genius behind SeeFusion

Site Updates

Entries Search