The security of your company and personal details is as powerful as its weakest point. Hackers have proved that the Web security is always the most critical yet neglected issue. The database is the most targeted part of an organization since it includes the sensitive data. Hence, database security is as essential as guarding the website or application.
Hackers attack the database in various ways. On one hand, the external attacks are caused by skilled external hackers using the weaknesses of the database security, while, on another hand, the internal attacks are produced by the disgruntled employees who misuse their privileges to damage their company.
What are the chief threats to a Database Server?
- SQL injection: With an SQL injection attack, the intruder uses the shortcomings in your application’s input validation and data access code to run random commands in the database with the help of the security context of the Web application.
- Password cracking: The most common way of attack is trying to crack the password of well-known account names, for example, of sa (the SQL Server administration account).
- Network eavesdropping: Mostly the deployment architecture of an application is made such that there remains a physical detachment of the data access code from the database server. Due to this, the sensible, confidential data such as database login credentials or application-specific data must be preserved from network eavesdroppers.
- Unauthorized server access: To enhance the database security, it is recommended that direct access to your database must be provided to limited clients only.
How to prevent your database?
To prevent your database from:
SQL injection attacks:
- Your app must check the input data and then use it in SQL queries.
- For data access, work with type safe SQL parameters. You can use them with stored procedures or dynamically constructed SQL command strings.
- Use an SQL Server login implementing numerous restricted permissions in the database. Grant execute permissions to selected stored procedures only and provide no direct table access.
- Subject the input data to type and length checks so as to ensure the security with the help of SQL parameters.
- Also, make sure that the injected code must be treated as literal data, and not as an executable statement in the database.
Password Cracking Attacks:
- Build the password for SQL Server login accounts as per the complexity requirements. Also, avoid adding words in the password that are found commonly in the dictionary.
- Connect to the database server through Windows authentication so as to avoid sending credentials over the network.
- Use an SSL connection between the database server and the Web server to shield the delicate application data.
- On the database server, install a server certificate resulting in the automatic encryption of SQL credentials over the network.
- Use an IPSec encrypted channel between Database and Web server.
- Don’t put your business at risk because of the insecure database server. Safeguard your database and so your organization.
Unauthorized server access attacks:
- Ensure that the SQL Server ports are hidden from outside of the perimeter network. Also, the direct access by the unauthorized hosts is restricted within the perimeter also.
Keep these points in concern to protect your database. Remember preserving your database means defending your crucial details and thus, your organization.