Magento platform is one of the most used ecommerce platforms around the world. More than 300,000 developers work on Magento globally and is used by more than 250,000 merchants. This popularity brings the attention of attackers worldwide, which means attacks on magento2 stores are common.
In this series of magento2 security we will discuss many of the attacks but in this blog we will focus on SQL injection and how we can secure our store against it.
SQL injection is a web based application vulnerability that allows attackers to interact with databases with specially crafted queries, through which attackers can access data that normal users can not.
A successful magento2 SQL injection attack can result in unauthorized access to sensitive data of other users like passwords, banking details or personally identifiable information.
In some cases, attackers can:
- Makes parament changes in the database.
- Delete/manipulate the entire database
- Steal user information , leak admin credentials.
- Obtain a reverse shell or a persistent backdoor into an organization’s system.
To know more about injection flaws click here .
How to secure your magento2 store against SQL injection
1. Use prepared statements and parameterized queries
These are SQL statements that are sent to and parsed by the database server separately from any parameters. First the application created the sql command and sent it to the DBMS leaving parameters (user supplied values) behind,then the DBMS compiles the SQL command and stores the result without executing it. Later on the application supplies values for the parameters and the DBMS executes the statement.
2. Escaping All User-Supplied Input
Always consider user supplied data malicious, use input validation such as mysql_real_escape_string() function to ensure that any evil characters like ‘ , ” , are not passed to any SQL query .
3. Limit Privileges
Always make sure that data at rest is encrypted using strong algorithms so that even if the Data gets compromised it is of no use without keys or the attackers need brute force to get information. Use the least privilege principle for statements like Delete, Drop, Update etc.
Although it’s not possible for every store owner to check against sql vulnerabilities in their store, in such conditions Webkul can help in detection and in mitigation from vulnerabilities on Magento 2 store through its basic security module which can also be customized.
To safeguard your Magento 2 store from other attacks like malicious file upload or brute force visit our store and check out our Security Extension Suite for Magento 2 module for more details, which is effective in blocking malicious users and in notifying admins for suspected login attempts.