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| Section | Objectives |
|---|---|
| Topic 1: Cloud and IoT Security | - IoT security fundamentals - Cloud computing security concepts |
| Topic 2: Reconnaissance Techniques | - Footprinting and information gathering - Scanning networks and enumeration |
| Topic 3: Introduction to Ethical Hacking | - Ethical hacking concepts and methodology |
| Topic 4: Network Attacks | - Sniffing and session hijacking - Denial of Service (DoS/DDoS) |
| Topic 5: Cryptography | - Encryption, hashing, and cryptanalysis |
| Topic 6: Wireless and Mobile Security | - Mobile platform vulnerabilities - Wireless network attacks |
| Topic 7: Web and Application Security | - Web application hacking techniques |
| Topic 8: System Hacking | - Malware threats and system exploitation - Gaining access and privilege escalation |
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NEW QUESTION # 510
Which WPA vulnerability allowed packet injection and decryption attacks?
Answer: B
Explanation:
WPA with TKIP suffers from vulnerabilities inherited from WEP, particularly the use of weak Initialization Vectors (IVs). CEH v13 explains that these weaknesses allow attackers to perform packet injection and partial decryption attacks.
Although WPA improved upon WEP, TKIP was designed as a temporary solution and still relies on predictable IV behavior. This makes Option C correct.
Lack of AES (Option A) explains why WPA is weaker than WPA2 but does not directly describe the exploit mechanism. Weak passwords (Option D) affect authentication, not packet injection. GTK predictability (Option B) is relevant but not the primary cause here.
CEH v13 explicitly states that IV reuse and predictability in TKIP enable practical attacks. Therefore, Option C is correct.
NEW QUESTION # 511
The tools which receive event logs from servers, network equipment, and applications, and perform analysis and correlation on those logs, and can generate alarms for security relevant issues, are known as what?
Answer: B
Explanation:
Comprehensive and Detailed Explanation:
SIEM (Security Information and Event Management) systems aggregate logs and alerts from across the network-servers, routers, firewalls, IDS/IPS, and applications-and correlate that data to identify suspicious or malicious activity.
They provide:
Real-time alerting
Long-term log storage
Compliance reporting
Incident response facilitation
From CEH v13 Courseware:
Module 12: Evading IDS, Firewalls, and Honeypots # SIEM Tools
Reference:CEH v13 Official Guide - "SIEMs are key components in centralizing log management and event correlation."
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NEW QUESTION # 512
Kevin, an encryption specialist, implemented a technique that enhances the security of keys used for encryption and authentication. Using this technique, Kevin input an initial key to an algorithm that generated an enhanced key that is resistant to brute-force attacks. What is the technique employed by Kevin to improve the security of encryption keys?
Answer: B
Explanation:
The scenario describes a method used to make a cryptographic key more secure by making it harder to brute- force. This process is called Key Stretching.
Key Stretching:
* Takes a weak or short key and processes it through a function (often repeatedly) to produce a stronger, longer key.
* Commonly used in password hashing (e.g., bcrypt, PBKDF2, scrypt).
* Increases the computational time required to test each guess in a brute-force attack, effectively reducing attack feasibility.
Incorrect Options:
* A. Key derivation function (KDF) is related but more general; key stretching is a specific technique often implemented within KDFs.
* B. Key reinstallation is associated with WPA2 KRACK attacks.
* C. Public key infrastructure (PKI) is a system of digital certificates, not a key strengthening technique.
Reference - CEH v13 Official Courseware:
* Module 20: Cryptography
* Section: "Password Hashing and Key Stretching Techniques"
* Subsection: "bcrypt, PBKDF2, and Key Strengthening"
* CEH iLab: Password Hashing and Cracking Simulations
NEW QUESTION # 513
While working as an intern for a small business, you have been tasked with managing the company's web server. The server is being bombarded with requests, and the company's website is intermittently going offline. You suspect that this could be a Distributed Denial of Service (DDoS) attack. As an ethical hacker, which of the following steps would be your first course of action to mitigate the issue?
Answer: A
NEW QUESTION # 514
An ethical hacker is auditing a hospital's wireless network, which is currently secured with WPA encryption using TKIP. The hacker successfully demonstrates packet-injection and decryption attacks on the network. Which vulnerability in WPA most likely allowed these attacks to succeed?
Answer: D
Explanation:
WPA with TKIP suffers from weaknesses in its use of initialization vectors and RC4 key mixing, which allow attackers to exploit IV reuse and perform packet injection and partial decryption attacks, as demonstrated in known TKIP attacks such as Beck-Tews.
NEW QUESTION # 515
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