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| Section | Objectives |
|---|---|
| Web and Application Security | - Web application hacking techniques |
| Introduction to Ethical Hacking | - Ethical hacking concepts and methodology |
| Cloud and IoT Security | - IoT security fundamentals - Cloud computing security concepts |
| Cryptography | - Encryption, hashing, and cryptanalysis |
| System Hacking | - Gaining access and privilege escalation - Malware threats and system exploitation |
| Reconnaissance Techniques | - Footprinting and information gathering - Scanning networks and enumeration |
| Wireless and Mobile Security | - Wireless network attacks - Mobile platform vulnerabilities |
| Network Attacks | - Sniffing and session hijacking - Denial of Service (DoS/DDoS) |
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51. Frage
During a penetration testing engagement at First Union Bank in Chicago, ethical hacker Rachel Morgan is assigned to assess the internal network for potential sniffing activity that could compromise sensitive customer data. While inspecting traffic in the loan processing department, Rachel observes that a workstation is receiving packets not addressed to it, raising suspicion of a sniffing tool operating in promiscuous mode. To validate her hypothesis, she prepares to conduct an active verification using a classic detection approach. Which detection technique should Rachel use to confirm the presence of a sniffer in this case?
Antwort: A
Begründung:
Sending non-broadcast ARP requests is a classic active technique to detect systems in promiscuous mode. A machine running a sniffer may respond to ARP requests not specifically addressed to it, revealing that it is capturing and processing all network traffic rather than only frames intended for its MAC address.
52. Frage
An organization uses SHA-256 for data integrity verification but still experiences unauthorized data modification. Which cryptographic tool would best resolve this issue?
Antwort: D
Begründung:
CEH explains that hash functions alone, such as SHA-256, only provide integrity checks and do not verify authenticity or non-repudiation. Attackers can modify data and recompute the hash.
Digital signatures combine hashing with asymmetric cryptography, ensuring:
* Integrity
* Authentication
* Non-repudiation
Option D is correct.
Options A and B provide confidentiality, not integrity assurance.
Option C secures communication channels, not standalone data integrity.
CEH explicitly recommends digital signatures for protecting data integrity against tampering.
53. Frage
Rebecca, a security professional, wants to authenticate employees who use web services for safe and secure communication. In this process, she employs a component of the Web Service Architecture, which is an extension of SOAP, and it can maintain the integrity and confidentiality of SOAP messages.
Which of the following components of the Web Service Architecture is used by Rebecca for securing the communication?
Antwort: A
Begründung:
WS-Security (Web Services Security) is a protocol specification that provides a means for securing SOAP- based messages. It defines how to add authentication, encryption, and digital signatures to SOAP headers, helping ensure message integrity and confidentiality.
According to CEH v13 Official Courseware:
* WS-Security is an extension of SOAP.
* It supports features such as:
* Authentication via tokens (e.g., username, X.509)
* Message integrity via digital signatures
* Message confidentiality via XML encryption
Incorrect Options:
* A. WSDL (Web Services Description Language) describes the web service interface but does not provide security.
* B. WS Work Processes is not a defined web service security standard.
* C. WS-Policy allows expressing security requirements, but enforcement is handled by WS-Security.
Reference - CEH v13 Official Courseware:
Module 14: Hacking Web Applications
Section: "Web Services Security"
Subsection: "WS-* Standards"
54. Frage
In a secure operations center in Arlington, Virginia, a red team of certified ethical hackers was simulating an advanced persistent threat against a defense contractor. After gathering extensive intelligence on the target's environment and user behavior, the team developed a customized attack artifact specifically designed to align with the victim's systems and workflows.
The artifact was prepared in a format suitable for later transmission, yet no communication with the intended recipients had taken place and all activity remained entirely within the attacker-controlled environment.
Which phase of the Cyber Kill Chain Methodology does this activity most accurately represent?
Antwort: D
Begründung:
Weaponization is the phase in which an adversary prepares an attack package after completing reconnaissance. The attacker may combine an exploit with a payload, configure malicious documents, customize malware, or create another artifact appropriate for the target's systems and expected workflows.
These preparations normally occur within attacker-controlled infrastructure before the artifact is transmitted to the victim.
The scenario clearly states that intelligence gathering has already occurred, a customized artifact has been created, and no communication with the recipients has begun. Reconnaissance is therefore complete, while delivery has not yet taken place. Delivery would involve transmitting the artifact through email, a website, removable media, a supply-chain channel, or another mechanism. Exploitation occurs later, when the victim's system processes the malicious content and a vulnerability or user action triggers the attacker's code.
Lockheed Martin's Cyber Kill Chain organizes an intrusion into reconnaissance, weaponization, delivery, exploitation, installation, command and control, and actions on objectives. Its original intrusion-analysis paper provides the same ordering. The artifact's completed but undelivered state therefore places the activity squarely in weaponization.
55. Frage
A future-focused security audit discusses risks where attackers collect encrypted data now, anticipating that they can decrypt it later with quantum computers. What is this threat known as?
Antwort: C
Begründung:
In CEH v13 Cryptography, this threat is formally referred to as "Harvest Now, Decrypt Later" (HNDL).
It describes a long-term cryptographic risk where adversaries intercept and store encrypted communications today, even though they cannot decrypt them with current computational capabilities. The expectation is that future quantum computers will be powerful enough to break widely used public-key cryptographic algorithms.
CEH v13 emphasizes that quantum algorithms such as Shor's Algorithm can theoretically break RSA, DSA, and ECC by efficiently solving integer factorization and discrete logarithm problems. However, the defining feature of this threat is not the act of breaking encryption itself, but rather the strategic collection and storage of encrypted data in advance.
Option C is incomplete because it focuses only on the cryptographic mechanism rather than the threat model.
Options B and D are unrelated to the scenario described and refer to quantum communication integrity issues, not long-term cryptographic exposure.
CEH v13 highlights that sensitive data with long confidentiality lifetimes-such as government records, financial data, healthcare information, and intellectual property-is especially vulnerable to this threat. As a result, organizations are encouraged to adopt quantum-resistant (post-quantum) cryptographic algorithms proactively.
Thus, Option A accurately describes the threat model and aligns with CEH v13's treatment of future cryptographic risks.
56. Frage
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