CompTIA Security+ (SY0 - 601) Exam Preparation : 2023

Course details

CompTIA Security+ Updated question as per latest Syllabus

Explanation on Every Question, right and wrong answers at the end so that Student know why it's wrong or right.

Being CompTIA Security+ certified means that you understand the cutting-edge fundamentals of computer Security. CompTIA Security+ Candidates support todays core technologies from security to cloud to data management and more. Jobs in IT are among the best paying in our time, and there are plenty available, with new ones being created every day. While landing a job depends on many factors, CompTIA Security+ is a powerful and respected credential that employers trust and can get you hired for your first job in IT. Staying on your path, collecting experience, additional certifications and education, will give you the opportunity to thrive in your career and achieve your income goals.

##) Sample Question : 1

The POODLE attack is an MITM exploit that affects:

Answers

A. TLS1.0 with CBC mode cipher

B. SSLv2.0 with CBC mode cipher

C. SSLv3.0 with CBC mode cipher

D. SSLv3.0 with ECB mode cipher.

Correct answer : C

Explanations : A flaw was found in the way SSL 3.0 handled padding bytes when decrypting messages encrypted using block ciphers in cipher block chaining (CBC) mode.

How To Protect your Server Against the POODLE SSLv3 Vulnerability On October 14th, 2014, a vulnerability in version 3 of the SSL encryption protocol was disclosed.

This vulnerability, dubbed POODLE (Padding Oracle On Downgraded Legacy Encryption), allows an attacker to read information encrypted with this version of the protocol in plain text using a man-in-the-middle attack.

Although SSLv3 is an older version of the protocol which is mainly obsolete, many pieces of software still fall back on SSLv3 if better encryption options are not available.

More importantly, it is possible for an attacker to force SSLv3 connections if it is an available alternative for both participants attempting a connection.

The POODLE vulnerability affects any services or clients that make it possible to communicate using SSLv3

Because this is a flaw with the protocol design, and not an implementation issue, every piece of software that uses SSLv3 is vulnerable.

To find out more information about the vulnerability, consult the CVE information found at CVE-2014-3566

What is the POODLE Vulnerability? The POODLE vulnerability is a weakness in version 3 of the SSL protocol that allows an attacker in a man-in- the-middle context to decipher the plain text content of an SSLv3 encrypted message.

Who is Affected by this Vulnerability? This vulnerability affects every piece of software that can be coerced into communicating with SSLv3

This means that any software that implements a fallback mechanism that includes SSLv3 support is vulnerable and can be exploited.

Some common pieces of software that may be affected are web browsers, web servers, VPN servers, mail servers, etc.

How Does It Work? In short, the POODLE vulnerability exists because the SSLv3 protocol does not adequately check the padding bytes that are sent with encrypted messages.

Since these cannot be verified by the receiving party, an attacker can replace these and pass them on to the intended destination.

When done in a specific way, the modified payload will potentially be accepted by the recipient without complaint.

An average of once out of every 256 requests will accepted at the destination, allowing the attacker to decrypt a single byte.

This can be repeated easily in order to progressively decrypt additional bytes.

Any attacker able to repeatedly force a participant to resend data using this protocol can break the encryption in a very short amount of time.

How Can I Protect Myself? Actions should be taken to ensure that you are not vulnerable in your roles as both a client and a server.

Since encryption is usually negotiated between clients and servers, it is an issue that involves both parties.

Servers and clients should should take steps to disable SSLv3 support completely.

Many applications use better encryption by default, but implement SSLv3 support as a fallback option.

This should be disabled, as a malicious user can force SSLv3 communication if both participants allow it as an acceptable method.

The POODLE (Padding Oracle On Downgraded Legacy Encryption) attack is a type of Man-in-the-Middle (MITM) exploit that targets SSLv3.0 protocol with Cipher Block Chaining (CBC) mode. The attack takes advantage of a vulnerability in the SSLv3.0 protocol that allows an attacker to decrypt the encrypted messages exchanged between a client and a server.

To carry out the attack, the attacker first intercepts the communication between the client and server and downgrades the encryption protocol to SSLv3.0. The attacker then exploits a flaw in the CBC mode of encryption, where they can manipulate the padding in the final block of the cipher to reveal one byte of plaintext at a time. By repeating this process, the attacker can decrypt the entire message.

TLS1.0 with CBC mode cipher is also vulnerable to the POODLE attack, but SSLv2.0 and SSLv3.0 with ECB mode cipher are not affected. Therefore, the correct answer is C. SSLv3.0 with CBC mode cipher.

It's important to note that the SSLv3.0 protocol is now considered insecure and has been replaced by newer and more secure protocols such as TLS 1.2 and TLS 1.3. Most modern web browsers and servers no longer support SSLv3.0, and it is recommended to disable SSLv3.0 on any systems that still use it.

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##) Sample Question : 2

A company is deploying smartphones for its mobile salesforce.

These devices are for personal and business use but are owned by the company.

Sales personnel will save new customer data via a custom application developed for the company.

This application will integrate with the contact information stored in the smartphones and will populate new customer records onto it.

The customer application's data is encrypted at rest, and the application's connection to the back office system is considered secure.

The Chief Information Security Officer (CISO) has concerns that customer contact information may be accidentally leaked due to the limited security capabilities of the devices and the planned controls.

Which of the following will be the MOST efficient security control to implement to lower this risk?

Answers

A. Implement a mobile data loss agent on the devices to prevent any user manipulation with the contact information.

B. Restrict screen capture features on the devices when using the custom application and the contact information.

C. Restrict contact information storage dataflow so it is only shared with the customer application.

D. Require complex passwords for authentication when accessing the contact information.

Correct answer : C

Explanations : The company's CISO is concerned about accidental leakage of customer contact information due to the limited security capabilities of the smartphones being deployed for use by the mobile salesforce. To mitigate this risk, the MOST efficient security control to implement would be:

Option A: Implement a mobile data loss agent on the devices to prevent any user manipulation with the contact information.

A mobile data loss prevention (DLP) agent is a software program that runs on mobile devices and helps prevent sensitive data from being leaked or compromised. It provides protection against unauthorized access, sharing, and transmission of data. This security control can prevent data leaks by preventing users from copying, transferring, or sending data outside the device.

However, this option may not be the most efficient because it can be complex and costly to implement, and it can negatively impact user productivity. Additionally, it may not prevent accidental data leakage if the user is not trying to manipulate the contact information.

Option B: Restrict screen capture features on the devices when using the custom application and the contact information.

This option restricts users from taking screenshots of the contact information when using the custom application. This can prevent users from accidentally or intentionally sharing sensitive data by taking a screenshot of the contact information.

However, this option may not be the most efficient because it does not prevent users from sharing contact information by other means, such as copying and pasting or taking a picture of the screen.

Option C: Restrict contact information storage dataflow so it is only shared with the customer application.

This option restricts the data flow so that the contact information is only shared with the custom application. This can prevent accidental data leakage by limiting the exposure of sensitive data to only the authorized application.

This option may be the most efficient because it limits the risk of data leakage while still allowing the mobile salesforce to use the custom application to manage customer information.

Option D: Require complex passwords for authentication when accessing the contact information.

This option requires users to enter a complex password to access the contact information. This can prevent unauthorized access to the sensitive data and can also discourage users from sharing passwords, as complex passwords can be difficult to remember and share.

However, this option may not be the most efficient because it does not prevent accidental data leakage if the user has already logged in to the device and left it unlocked.

In conclusion, option C (Restrict contact information storage dataflow so it is only shared with the customer application) is the MOST efficient security control to implement to lower the risk of accidental data leakage in this scenario.

Exam Topics covered in CompTIA Security+ SY0-601 Certification Exams skill questions:-

• Attacks, Threats, and Vulnerabilities 24%

• Architecture and Design 21%

• Implementation 25%

• Operations and Incident Response 16%

• Governance, Risk, and Compliance 14%

  
  

Skill Measurement Exam Topics:-

Threats, Attacks, and Vulnerabilities: Compare and contrast different types of social engineering techniques, Given a scenario, analyze potential indicators to determine the type of attack, Given a scenario, analyze potential indicators associated with application attacks, Given a scenario, analyze potential indicators associated with network attacks, Explain different threat actors, vectors, and intelligence sources, Explain the security concerns associated with various types of vulnerabilities, Summarize the techniques used in security assessments, Explain the techniques used in penetration testing.

Architecture and Design: Explain the importance of security concepts in an enterprise environment, Summarize virtualization and cloud computing concepts, Summarize secure application development, deployment, and automation concepts, Summarize authentication and authorization design concepts, Given a scenario, implement cybersecurity resilience, Explain the security implications of embedded and specialized systems, Explain the importance of physical security controls, Summarize the basics of cryptographic concepts.

Implementation: Given a scenario, implement secure protocols, Given a scenario, implement host or application security solutions, Given a scenario, implement secure network designs, Given a scenario, install and configure wireless security settings, Given a scenario, implement secure mobile solutions, Given a scenario, apply cybersecurity solutions to the cloud, Given a scenario, implement identity and account management controls, Given a scenario, implement authentication and authorization solutions, Given a scenario, implement public key infrastructure.

Operations and Incident Response: Given a scenario, use the appropriate tool to assess organizational security, Summarize the importance of policies, processes, and procedures for incident response, Given an incident, utilize appropriate data sources to support an investigation, Given an incident, apply mitigation techniques or controls to secure an environment, Explain the key aspects of digital forensics.

Governance, Risk, and Compliance: Compare and contrast various types of controls, Explain the importance of applicable regulations, standards, or frameworks that impact organizational security posture, Explain the importance of policies to organizational security, Summarize risk management processes and concepts, Explain privacy and sensitive data concepts in relation to security.

CompTIA Security+ SY0-601 Exam details: Number of Questions, Time, and language

• Number of Questions: Maximum of 90 questions,

• Type of Questions: Multiple Choice Questions (single and multiple response), drag and drops and performance-based,

• Length of Test: 90 Minutes. The exam is available in English, German, and Japanese languages.

• Passing Score: 750/900

• Languages : English at launch. German, Japanese, Portuguese, Thai and Spanish

• Schedule Exam : Pearson VUE

In this CompTIA Security+ SY0-601 exam preparation course, you'll be challenged with 101 CompTIA Security+ SY0-601 practice exam questions. These questions have been written to emulate the CompTIA Security+ SY0-601 exam.

Perhaps this is your first step toward the certification, or perhaps you are coming back for another round. We hope that you feel this exam challenges you, teaches you, and prepares you to pass the CompTIA Security+ SY0-601. If this is your first study guide, take a moment to relax. This could be the first step to a new high-paying job and an AMAZING career.

The SY0-601 or as its also known, the CompTIA Security+ SY0-601, like all tests, there is a bit of freedom on CompTIA Security+ part to exam an array of subjects. That means knowing the majority of content is required because they test randomly on the many subjects available. Be aware too that experience requirements often exist because theyve observed the average person and what is required. You can always push past that to succeed with the CompTIA Security+ SY0-601 but it may take some extra work.

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