Are you a fresh college graduate looking to work in the security testing field? Or are you already working in a domain but looking for a shift in your career in a new direction? Is security testing what you are looking for? If all the answers to these questions were a YES, then here we are in front of you, bringing you a banging series of interview questions!
It has become quite essential for organizations to find and assess vulnerabilities in their system. The system's security has become a big deal in modern application development. Business logic has become more complicated than ever, and many web applications are incorporating new things. In such a scenario, incorporating security testing has become quite important.
Security testing is a procedure where testing is done to find any weaknesses in the security mechanism that protects the data and keeps functionality as intended. The main components of security are authentication, authorisation, availability, confidentiality, integrity, and non-repudiation.
Important information related to security testing:
With 15 questions each for freshers, experienced and 10 FAQs we’ve got a whole package to make you interview-ready! Keep reading to learn more!
Top 10 Security Testing Interview Questions
Any system that is weak enough to be attacked by outsiders or bugs is said to be vulnerable.
The likelihood of vulnerabilities increases if the system has not undergone rigorous security testing. Patches or fixes are needed periodically to shield a system from vulnerabilities.
The method of security testing involves running test cases to find flaws in the information systems' security mechanisms. Testers play the part of attackers and manipulate the system to uncover flaws in the security procedures. The purpose of security testing is to identify any application or system's vulnerability and secure its data from intruders.
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A technique called intrusion detection assists in identifying potential threats and responding to them. In order to identify intrusions, information must be gathered from numerous sources and systems, analyzed, and potential attack vectors must be identified.
The following are checked during intrusion detection:
Software testing, known as "Loop Testing", focuses solely on ensuring that loop structures are correct. It belongs to the Control Structure Testing (path testing, validation testing of data, condition testing).
Loop testing is white box testing. The loops in the program are tested using this technique.
When using code injection to target data-driven systems, SQL injection inserts malicious SQL statements into the entry field for execution. It is primarily identified as a website attack vector, although it may also be used to attack any kind of SQL database. Attackers can become administrators of the database server, spoof identities, alter already-existing data, cause repudiation problems like cancelling transactions or changing balances, allow full disclosure of all data on the system, destroy data or otherwise make it unavailable, and cause repudiation issues.
Adhoc testing is commonly used to break the system intentionally. The most notable feature of Adhoc testing is the absence of any test design methodology for producing test cases.
The method is typically applied to find software bugs. Adhoc testing is frequently performed without documentation because it lacks test cases.
A cookie is a little piece of data that a web browser stores after receiving it from a web server and can access at any time in the future. Cookies include password-based data, auto-fill data, etc.
Session cookies and persistent cookies are the two sorts of cookies.
Session cookies are transient and only exist for the duration of the current session.
Persistent cookies are the ones that are kept on a hard drive and remain there until they expire or are manually deleted.
The following are the 7 characteristics of security testing:
Secure Socket Layer is referred to as SSL. It's employed to establish a safe connection between the client and the server. The components of SSL are the change cypher specification, encryption algorithms, handshake protocols, and SSL recorded protocol.
Structured Testing: In this approach, each step of the testing process, from the creation of test cases to the subsequent sequential execution, is documented. The testers do tests according to this script.
Unstructured testing: In this method, test cases are created as they go along by the testers, who often do testing by guessing incorrectly.
|Related Blog: "Types of Software Testing"|
Project failure might result from poor methodology. Each software has a unique approach, and each methodology has its own traits. Sandwich or hybrid testing combines various technologies to ensure that all necessary testing procedures are covered to the fullest extent possible.
Hashed passwords and salt values, or password file access control, are two popular methods for securing a password file.
The term "NIDS" stands for "Network Intrusion Detection System," which is used to examine all of the subset's passing traffic and compare it to known threats. If a flaw is found, the system immediately notifies the administration with an alert message. It can also cooperate with other systems, such as firewalls to provide greater defence against known attack vectors. It can include both tiny and large computers.
The entire system must be tested as part of system testing. To determine whether the system operates according to plan, all of the modules and components are connected. System testing is done after integration testing. For the creation of high-quality products, this is essential.
Best practices for Information Security Management are outlined in ISO/IEC 17799, which was first published in the UK. It contains information security rules for all enterprises, no matter how big or little.
Any system's ports are the points at which data enters and exits. Port scanning is the process of inspecting ports for vulnerabilities in the system. The system may have certain weak spots where hackers might enter and steal crucial data. It is important to recognize these areas and guard against their abuse.
The types of port scans are:
Like any performance test, soak testing has its share of difficulties:
It's crucial to finish the entire test cycle, and ST is where this is done.
|Also CheckOut: "Software Testing Life Cycle(STLC)"|
These are the reasons why testers like module testing:
Time consumption is less: It is preferable to break the application up into smaller pieces, such as subprograms or small code units, because doing so will take less time. Developers can construct unit test cases and delegate them to several testers rather than handling everything themselves.
Supports parallel testing: It enables independent testing of various modules from a single application. Modules are reduced in size so that testers may focus more on them, producing a better final output.
Reduces Complexity: Testing an entire application at once can be difficult and time-consuming. The complexity of testing an application as a whole can be reduced by segmenting a large application into manageable pieces or unit levels.
Security testing approaches include white-box testing, black-box testing, and grey-box testing.
Pilot testing has numerous benefits, some of which are listed below:
Hackers can use URL manipulation, a sort of attack, to change the URL of a website in order to access vital data. Between the client and server, the data is transmitted using the HTTP GET method as arguments in the query string. Hackers have the ability to change the values between these settings, get server authentication, and steal sensitive information.
It is important to perform security testing on URL manipulation to prevent this kind of attack. Testers themselves can attempt to change the URL in order to look for potential attacks and, if any are discovered, to stop them.
In endurance testing, the following items are examined:
Accuracy of business rules: Complex components like relational limitations, triggers, stored procedures, etc., are brought on by complicated databases. Thus, to authenticate these complicated items, testers use the proper SQL queries.
ACID properties of transactions: Each transaction that the database processes must adhere to the four ACID criteria of atomicity, consistency, isolation, and durability.
Data integrity: The screens and other forms must display the most recent and updated values of shared data. An older value cannot be displayed on one screen after the value has been updated on another. They have to be updated concurrently.
Data mapping: To check whether the fields in the database table are appropriately and consistently mapped to the UI or frontend forms.
According to the Open Source Security Testing methodology document, there are seven primary categories of security testing:
A soak test evaluates a system's and piece of software's effectiveness by seeing how it handles a lot of loads. Soak testing aids in the pre-detection of:
Database Connections Failure: It can be caused by incorrect database information, faulty databases, or unresponsive database servers. In other words, the system/device is unable to establish a connection with the database to retrieve the needed data. Databases and systems can occasionally crash due to high load. Soak testing is required to find these problems early on.
Memory leaks: Memory leaks can lower the system's total memory capacity, which lowers system performance. In the worst situation, it could cause the system or device to malfunction, crash a program, or make it run slowly. Developers can identify any potential memory leaks through soak testing, and then devise solutions.
Network Layer Connections Failure: The network layer facilitates the passage of network packets from source to destination through different networks. Bottlenecks can develop due to overloaded or underloaded servers, traffic congestion, improper router setups, and persistent frame loss, breaking network layer connections. Developers can identify these connection failures thanks to soaking layers and taking proactive action to fix the problems.
Response time degradation: Heavy loads can severely impact software/systems by lengthening their response times, which has a negative impact on user experience. Developers can identify response time degradation and address it as soon as possible by using soak testing.
This style of attack combines a URL manipulation attack with forced browsing. Hackers can modify URL string parameters to access sensitive material, such as accomplished data, outdated data, or data that is still being developed, that is often not available to the general public.
The backend testing procedure is as follows:
Host Intrusion Detection System, also known as HIDS, is a system that takes a snapshot of the current system and compares it to the prior snapshot. If any crucial files have been altered or destroyed, a notification is generated and forwarded to the administrator.
There are four stages in the life cycle of test metrics. They are:
The software testing that identifies system flaws and establishes whether the system's data and resources are secure from potential hackers is known as security testing. It makes sure that the software system and application remain secure and unaffected by any dangers or threats that could result in harm.
How to Perform Security Testing Manually:
Top 10 Open Source Security Testing Instruments:
An information system's security procedures are tested for flaws in order to protect data and keep functioning as intended.
Everyone involved in the lifecycle of software development, from the CEO to the development crew, is responsible for doing application security testing at different levels. Security initiatives need to get the support of Exec Manage.
Non-functional testing includes security testing. Non-functional testing, in contrast to functional testing, primarily focuses on whether the software's features are operating as intended (i.e., "what" the software does) and examines how the application is configured and designed.
Perhaps the objective is to evaluate the security of particular apps or systems. The aim is to make sure all systems that interact with the outside world are under control. Or it can be to make sure that every system is put through its paces so you can accurately assess your information risk.
Security assessments come in three types: "security audits," "vulnerability assessments," and "penetration tests." Despite the fact that these words are frequently used synonymously, these tests are in fact rather diverse.
The majority of security checks can be partially or fully automated during the course of a software product's lifespan. For example, integrating a static code analysis (SCA) tool right into the development environment can assist in automating problem discovery while code is being created.
The basic objective of security testing is to recognize system threats and evaluate their possible vulnerabilities so that they may be dealt with without the system becoming unusable or being exploited.
The most crucial kind of testing for any application is security testing. In this kind of testing, the tester assumes the position of an attacker and manipulates the system to discover faults that affect security. Understanding its core importance in software engineering, we all know the true value of a test engineer. This job is something which requires a deep understanding of the diverse range of security testing, vital data, and types of flaws that could be possible. We wish you the best in cracking your interview! We hope that this series has helped you get an idea of what the questions look like and how to answer them appropriately.
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Kalla Saikumar is a technology expert and is currently working as a content associate at MindMajix. Write articles on multiple platforms such as ServiceNow, Business Analysis, Performance Testing, Mulesoft, Oracle Exadata, Azure, and other courses. And you can join him on LinkedIn.
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