IT Security Analyst

IT Security Analyst Interview Questions and Answers

Updated 26 Sep 2024

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Q1. Are you familiar with nmap? Please write down the nmap syntax for full port TCP Scan.

Ans.

Yes, nmap is a popular network scanning tool used by IT Security Analysts.

nmap -p- -sT
nmap --open -p-
nmap -p 1-65535 -sT

Q2. What is the difference between DOM XSS and Reflected XXS?

Ans.

DOM XSS occurs when client-side scripts manipulate the DOM to execute malicious code, while Reflected XSS involves injecting malicious scripts into a website's input fields.

DOM XSS involves manipulating the DOM to execute malicious code on the client-side
Reflected XSS involves injecting malicious scripts into a website's input fields
DOM XSS is more difficult to detect and prevent compared to Reflected XSS
Example of DOM XSS: Attacker injects a script that manipulates the DOM t...read more

Q3. do you have hands on experience with VAPT?

Ans.

Yes, I have hands-on experience with Vulnerability Assessment and Penetration Testing (VAPT).

Performed VAPT on company's network infrastructure to identify and remediate security vulnerabilities
Utilized tools like Nessus, Metasploit, and Burp Suite for conducting VAPT
Generated detailed reports outlining vulnerabilities and recommended solutions
Collaborated with IT teams to implement security measures based on VAPT findings

Q4. What is the difference between CSRF and SSRF?

Ans.

CSRF is a type of attack where a malicious website tricks a user's browser into making unwanted requests, while SSRF is a type of attack where an attacker can send a crafted request from a vulnerable server.

CSRF (Cross-Site Request Forgery) involves tricking a user's browser into making unauthorized requests to a different website on which the user is authenticated.
SSRF (Server-Side Request Forgery) involves an attacker sending a crafted request from a vulnerable server, pote...read more

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Q5. If you got a bufferoverflow atack how you will validate it?

Ans.

To validate a buffer overflow attack, I would analyze the program's memory usage, check for abnormal behavior, and use debugging tools.

Analyze the program's memory usage to identify any unexpected changes or overflows
Check for abnormal behavior such as crashes, unexpected output, or system instability
Use debugging tools like gdb or Valgrind to trace the program's execution and identify the source of the buffer overflow
Implement security measures such as input validation and b...read more

Q6. Where we can perform Insecure Deserialization?

Ans.

Insecure deserialization can occur in various places such as web applications, APIs, and network services.

Web applications that accept user input and deserialize it without proper validation
APIs that deserialize data from external sources without proper security measures
Network services that deserialize data from untrusted sources

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Q7. Brush up on data structures and algorithms.

Ans.

Data structures and algorithms are fundamental concepts in computer science for organizing and processing data efficiently.

Data structures are ways of organizing and storing data, such as arrays, linked lists, trees, and graphs.
Algorithms are step-by-step procedures for solving problems, such as searching, sorting, and graph traversal.
Understanding data structures and algorithms is crucial for optimizing performance and solving complex problems in IT security.

Q8. Email analysis with email security gateway

Ans.

Email analysis with email security gateway involves monitoring and analyzing email traffic for potential security threats.

Utilize email security gateway tools to monitor incoming and outgoing emails for malicious content
Analyze email headers, attachments, and content for signs of phishing attempts or malware
Set up rules and policies to automatically block suspicious emails or quarantine them for further investigation
Regularly review email security logs and reports to identify...read more