Sorry for asking this silly question but If I found a website which is vulnerable to time base SQL Injection attack. For example I am using (sleep 20) means server will sleep for 20 seconds and then respond me so the server is down for 20 seconds only for me or all the users on website??? Answer Yes, sleep() …
Tag: sql-injection
Looking for an explanation of this attempted SQL injection query
Looking through my logs I found the following query string as an attempt to perform a SQL injection, probably from an automated tool: From what I can tell, it’s attempting a timing based attack to see if any of the tables in my database start with “a” – the sleep function will only run if the union quer…
How can I extend an SQL query in a variable?
I am testing possible SQL injections on my DB, and I am running a simple function to get results which a user should not be getting. The return value is correct based on id, however, the rest of the query is completely being ignored. I want to return all the data from the data table. Is there something wrong …
Should I care about sql injection after user has been authenticated?
Does make sense to check on malicious SQL input from an authenticated user? Answer An authenticated user can inject queries that bypasses his security settings if such a query doesn’t enforce security checks on fields/objects. Also if a class is defined as without sharing, a simple where clause addition…
How can I parameterize an SQL table without vulnerability to SQL injection
I’m writing a C# class library in which one of the features is the ability to create an empty data table that matches the schema of any existing table. For example, this: The above code works, but it has a glaring security vulnerability: SQL injection. My first instinct is to parameterize the query like…
Is NamedParameterJdbcTemplate vulnerable safe?
We are using NamedParameterJdbcTemplate to achieve “IN” operator functionality. Is there any SQL Injection vulnerability when we use NamedParameterJdbcTemplate? Answer Since NamedParameterJdbcTemplate internally use PreparedStatement for querying , and if you can make sure that you do not build th…
How to sanitize Arel SQL?
I have the following Arel SQL: I get SQL Injection warning when I run brakeman. I tried the following: However, I get the following error: How do I sanitize sql statement with Arel? Answer I am answering my own question. I am using Arel following the Github wiki for Ransack gem. I was doing something very sim…
SQL injection curiosity
Student here, just learned that in order to avoid SQL injections it’s better to use the prepare/execute duo: instead of the using: the question is: In what situations does anybody use query instead, since we have a pretty quick way to secure ourselves from SQL injections, does anybody use the query meth…
How to prevent MySql Injection in dynamic where?
I have an API in my C# WEBApi project which return some items from my MySQL DB. The data to return has a visibility set in a table and the params set in the API call says which kind of data should be …
How to refactor my python to use a SQL Prepared statement?
Code to accept input from the user and gives a User for a given username. Now it is accepting the input directly into the SQL query but I would like to use it with prepared Statements, how could I do …