sql-injection

Using PHP, what is the best way to store special characters (like the following) in a MSQUL database, to avoid injections. « " ' é à ù This is how I do it now: $book_text=$_POST['book_text']; $book_text=htmlentities($book_text, "ENT_QUOTES"); $query=//DB query to insert the text Then: $query=//DB query to select the text $fetch=//The fetch of $book_text $book_text=html_entity_decode($book_text); This way, all my text is formatted in HTML entities. But I think this takes up a lot of database space. So, is there a better way? Use utf8 encoding to store these values. To avoid injections use mysql

I have used hibernate to interact with my database, now I wanted to make my database layer secure against SQL Injection, so I did some research and I found out that my queries should be parameterized , so does it mean if I just structure my HQL queries as: List mothers = session.createQuery( "select mother from Cat as cat join cat.mother as mother where cat.name = ?") .setString(0, name) .list(); Then it's parameterized and protected from SQL Injection, or is there something else which I need to do... One other thing was mentioned - " Always escape your Data " How can that be achieved ??

I'm currently building a system with Ms Access. Since it's important to avoid sql injection, I want to use paramerters as VB.NET too, but I wonder if it could be or not. If so, I would be appreciate if you show me at least the sql statement inserting data from controls to the database using parameters, and If it can't be, would anyone show me the other ways? I would be appreciate for any recommendation, thanks.. This INSERT statement declares a Date/Time PARAMETER using a text box "txtStartDate" on an open form named "frmDatePicker", and inserts that value into MyTable. PARAMETERS [Forms]!

I have a form into which the visitor can enter data, and I want to store this data in a mysql database via the $_POST variable. What do I need to prevent sql injection? Use prepared statements . I gave a presentation at the PHP TEK-X conference in May 2010 about this topic, and I tried to cover multiple methods for defending against SQL Injection. There is no single method that is best in all cases, so you should learn multiple methods and use all of them: Validate user input or any other content from external sources (even data from within your own database) before interpolating it into an

I've got a web application with an SQL injection as part of an INSERT statement. It looks like this: INSERT INTO table1 VALUES ('str1', 1, 'INJECTION HERE') I can insert the regular multiple-query injections such as ');truncate table1;-- but due to the fact that Java + MySQL is used it does not allow stacking multiple queries so the above injection would result in an error from MySQL and the second query never gets executed. So basically it seems that all one can achieve from such an injection in the aforementioned architecture is injecting "junk data", which is possible without an injection

I've seen lots of articles and questions about mysqli, and all of them claim that it protects against sql injections. But is it fool proof, or is there still some way to get around it. I'm not interested in cross site scripting or phishing attacks, only sql injections. What I should have said to begin with is that I am using prepared statements. That is what I meant with mysqli. If I use prepared statements without any string concatenation, then is it foolproof? But is it fool proof, or is there still some way to get around it. No, you have to know what you're doing. If you use bound

I have a database log appender that inserts a variable number of log lines into the database every once in a while. I'd like to create an SQL statement in a way that prevents SQL injection, but not using server-side prepared statements (because I have a variable number of rows in every select, caching them won't help but might hurt performance here). I also like the convenience of prepared statments, and prefer them to string concatination. Is there something like a 'client side prepared statement' ? It sounds like you haven't benchmarked the simplest solution - prepared statements. You say

In my controller action, I have the following: def index @articles = (params[:mine] == "true") ? current_user.articles : Article.search(params[:search]) @articles = @articles.sort! { |a,b| b.created_at <=> a.created_at } @articles = Kaminari.paginate_array(@articles).page(params[:page]).per(25) respond_to do |format| format.html format.json { render json: @articles } end end And in the model: def self.search(search) if search.present? where("category LIKE ? OR article_type LIKE ?", "%#{search}%","%#{search}%") else find(:all) end end I understand that SQL injection would be possible if you use

By default does ASP.net protect against SQL injection attacks when using ASP controls? No. As long as you're supplying the SQL, it's up to you to be smart in how you use the controls. That usually means sanitizing input and using Parameterized Queries or Stored Procedures over dynamic SQL strings. If the control is generating the queries for you (like the Membership Controls, etc.) then you're well protected. Yes and no. ADO.NET has very good support for parameterization, and when you use it properly, the parameter values will be automatically sanitized to prevent SQL injection. So you can add