Global IS Consulting Interview Questions and Answers

OWASP Top 10 identifies the most critical web application security risks to help organizations improve their security posture.

• Provides a framework for understanding common vulnerabilities like SQL Injection and Cross-Site Scripting (XSS).

• Helps prioritize security efforts by focusing on the most prevalent and impactful risks.

• Facilitates communication between technical and non-technical stakeholders regarding security is...read more

Different attacks have unique characteristics and targets, such as CSRF/SSRF, LFI/RFI, Stored XSS/DOM based XSS.

• CSRF (Cross-Site Request Forgery) - attacker tricks a user into performing actions on a website without their knowledge

• SSRF (Server-Side Request Forgery) - attacker can make the server perform requests to other servers

• LFI (Local File Inclusion) - attacker can include files on a server through a web browser

• RFI...read more

Privilege escalation can be achieved by exploiting vulnerabilities in the system or using social engineering techniques.

• Exploit vulnerabilities in the system to gain higher privileges

• Use social engineering techniques to trick users into granting higher privileges

• Utilize known privilege escalation techniques such as DLL hijacking or abusing misconfigured permissions

Cross-Site Scripting (XSS) is a type of security vulnerability that allows attackers to inject malicious scripts into web pages viewed by other users.

• Reflected XSS: occurs when the malicious script is reflected off a web server, such as in search results or error messages

• Stored XSS: the injected script is permanently stored on the target server, such as in a comment section or database

• DOM-based XSS: the attack occurs i...read more

Common ports for network communication

• Port 80 - HTTP (Hypertext Transfer Protocol)

• Port 443 - HTTPS (Hypertext Transfer Protocol Secure)

• Port 25 - SMTP (Simple Mail Transfer Protocol)

• Port 22 - SSH (Secure Shell)

• Port 21 - FTP (File Transfer Protocol)

Bruteforce is a method used to crack passwords by systematically trying all possible combinations until the correct one is found.

• Use automated tools like Hydra or Burp Suite to try different combinations of usernames and passwords

• Start with common passwords and then move on to more complex ones

• Bruteforcing can be time-consuming and may trigger account lockouts if not done carefully

Burp Suite is a web vulnerability scanner and proxy tool, while Nessus is a vulnerability assessment tool.

• Burp Suite is used for web application security testing, including scanning for vulnerabilities and intercepting and modifying HTTP traffic.

• Nessus is used for network vulnerability scanning and assessment, identifying security issues in systems and applications.

• Both tools are essential for identifying and addressin...read more

Repeater in Burp Suite is used to manually modify and re-send individual HTTP requests.

• Repeater tool allows for manual editing of requests before sending them again

• Useful for testing different parameters or payloads

• Helps in analyzing server responses to modified requests

We follow a systematic approach for performing VAPT on web applications, mobile applications, and network infra with the provided URL/IP address.

• First, conduct a thorough reconnaissance phase to gather information about the target.

• Next, perform vulnerability scanning to identify potential security weaknesses.

• Then, conduct penetration testing to exploit the identified vulnerabilities.

• Finally, provide a detailed report w...read more