Ans. The common types of web attacks are as follows:

SQL Injection

Cross-Site Scripting (XSS)

Denial of Service (DoS)

Phishing

Malware

Brute Force

Ques 3: What is SQL injection?

Ans. An attack known as SQL injection takes place when a malicious script is injected into a SQL statement in a web application to access private data. In order to access a database without authorization, unscrupulous users can insert SQL commands into a web form’s input or URL.

Ques 4: What is cross-site scripting (XSS)?

Ans. A particular kind of computer security flaw called cross-site scripting (XSS) is frequently discovered in web applications.  In addition, XSS allows the attacker the ability to insert client-side scripts into web pages that most other users are seeing.

Moreover, this attack has the potential to deface websites, hijack user sessions, or drive users to dangerous websites.

Ques 5: What is cross-site request forgery (CSRF)?

Ans. A malicious website, email, blog, instant message, or software can persuade a user’s internet browser to carry out an undesirable activity on a reputable website to which the individual has not yet authorized. This is known as cross-site request forgery (CSRF), and it is a sort of attack.

Moreover, in a CSRF attack, the malicious threat attacker successfully convinces the target’s browser to carry out an unwelcome action, such as sending money, changing the user’s email address, or making purchases on a website to which the victim has already been authenticated.

Ques 6: What is a web application firewall (WAF)?

Ans. By observing and regulating HTTP traffic, a web application firewall (WAF) is a sort of security solution that aids in shielding web applications from harmful activities.  It operates by screening incoming requests and preventing malicious requests and those that violate security standards.  Also, it aids in defending against malicious behavior such as cross-site scripting, SQL injection attacks, and other threats.

Ques 7: What is input validation and why is it important for web application security?

Ans. Before user input is processed by a web application, it must be validated to make sure it is safe and legitimate.  The prevention of dangerous attacks like SQL injection, which can result in data loss or theft, is made possible due to the authentication mechanism, which is crucial for web application security.  Web applications can make sure that only authentic data is accepted and that harmful data is prohibited by verifying input.

Ques 8: What is the OWASP Top 10 and why is it important for web application security?

Ans. The top 10 web application security vulnerabilities that need to be addressed by enterprises are listed in the OWASP Top 10.  In addition, the Open Web Application Security Project issues it yearly (OWASP).  By offering advice regarding the most important security issues, the OWASP Top 10 assists enterprises in prioritizing their application security efforts.

Ques 9: What is the difference between authentication and authorization?

Ans. Before a user is given permission to utilize a system or resource, their authenticity is verified through the authentication process.  After a user’s information has been verified, authorization is the method of allowing or denying them access to a computer system or resource.  The process of authorization begins with authentication.

Ques 10: What is session management and why is it important for web application security?

Ans. The method for handling user session data for a web application is known as session management.  It is highly crucial for the security of web applications since it makes sure that user data is safe and that users are verified and given the authorization to use the application.  In addition, it aids in preventing illegal access to private data, including passwords.