This page was intentionally left blank This page was intentionally left blank Hands-On Ethical Hacking and Network Defense Second Edition Michael T. Simpson, Kent Backman, and James E. Corley ———————————————————————— Australia • Brazil • Japan • Korea • Mexico • Singapore • Spain • United Kingdom • United States Copyright 2010 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may
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source tools and resources to cybercriminals, it has become extremely difficult to combat distributed denial of service (DDoS) attacks. Typically DDoS attacks occur at the network layer by SYN flooding, ICMP flooding, and UDP flooding. Some times DDoS attacks fail at the network layer when this happens cybercriminals shift to application layer attacks. Application attacks occur by sending an overwhelming number of HTTP GET requests (HTTP flooding) or running a massive number of queries through the
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COMPUTER NETWORKING SIXTH EDITION A Top-Down Approach James F. Kurose University of Massachusetts, Amherst Keith W. Ross Polytechnic Institute of NYU Boston Columbus Indianapolis New York San Francisco Upper Saddle River Amsterdam Cape Town Dubai London Madrid Milan Munich Paris Montréal Toronto Delhi Mexico City São Paulo Sydney Hong Kong Seoul Singapore Taipei Tokyo Vice President and Editorial Director, ECS: Marcia Horton Editor in Chief: Michael Hirsch Editorial Assistant:
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Systems 10. Network Security 11. Knowing Operating Systems 12. Backups and Archiving 13. Summary 14. Exam Essentials 15. Review Questions 5. Chapter 3: Cryptography 2 1. Cryptography: Early Applications and Examples 2. Cryptography in Action 3. Understanding Hashing 4. Issues with Cryptography 5. Applications of Cryptography 6. Summary 7. Exam Essentials 8. Review Questions 6. Chapter 4: Footprinting and Reconnaissance 1. Understanding the Steps of Ethical Hacking 2. What Is Footprinting? 3. Terminology
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Hardening Client side attacks are attacks that target vulnerabilities in client applications that interact with a malicious server or process malicious data. Here, the client initiates the connection that could result in an attack. If a client does not interact with a server, it is not at risk, because it doesn’t process any potentially harmful data sent from the server. Merely running an FTP client without connecting to an FTP server would not allow for a client-side attack to take place. Simply
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forms of attack including, but not limited to botnet attacks. A Botnet can simply be seen as a network of compromised set of systems that can be controlled by an attacker. These systems are able to take malicious actions as needed by the attacker without the consent of the device owner and can cause havoc. This paper is the first part of a two-part report and discusses on several reportedly known botnets and describes how they work and their mode of infection. Several historic attacks and the
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actually the entry point of the Wide Area Network (WAN). This domain is the IT infrastructure where all the data moves in and out of the organization (Mansfield, 2010). There are many risks and threats that are associated with this domain since an attack can come from inside the network or try entering the network from an outside source. As an Information Systems Security Officer for a medium sized technology firm that has two sites, one in Virginia, and another in California, I am charged with the
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to retrieve the file from their electronic mailboxes in a constant period, and then reverse the process by translating the file from the standard format into the specific format required by the company’s application software. 5. Processing the electronic documents The internal application system of the designated company can process the received documents now. All the resulted documents corresponding to the received transaction should use the same processes or steps to transmit back to the
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best security posture 4 Additional Security mechanisms to protect the Database Server 6 Week 2: User Account Security 7 Creating Schemas 7 Creating Users, Creating Roles, Assigning Privileges based on Access Control Lists 7 Creating Views 10 Week 3: Database Vulnerabilities 11 Description of tools used to perform scans 11 Scan Information 11 False Positive Information 12 Discuss SQL injection attack 12 Week 4: Auditing Techniques 14 Security hardened network design 14 Research
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three means which of the following? A. Three different passwords are used before one can be reused. B. A password cannot be reused once changed for three years. C. After three hours a password must be re-entered to continue. D. The server stores passwords in the database for three days. Answer: A Explanation: QUESTION NO: 2 In order to provide flexible working conditions, a company has decided to allow some employees remote access into corporate headquarters. Which of the following
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