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EC-Council 312-50v13 Exam Actual Questions
Certified Ethical Hacker v13 (Page 22 )

Updated On: 31-Jul-2026
Page 22 of 133
PDF with 1065 Questions

You are a security analyst for CloudSec, a company providing cloud security solutions. One of your clients, a financial institution, wants to shift its operations to a public cloud while maintaining a high level of security control. They want to ensure that they can monitor all their cloud resources continuously and receive real-time alerts about potential security threats. They also want to enforce their security policies consistently across all cloud workloads.
Which of the following solutions would best meet these requirements?

  1. Implement a Virtual Private Network (VPN) for secure data transmission.
  2. Deploy a Cloud Access Security Broker (CASB).
  3. Use multi-factor authentication for all cloud user accounts.
  4. Use client-side encryption for all stored data.

Answer(s): B

Explanation:

B is correct because a Cloud Access Security Broker (CASB) provides visibility, compliance, security, and governance across cloud services, enabling continuous monitoring and real-time alerts.
Justification for B
CASBs act as intermediaries between cloud service users and providers, facilitating enforcement of security policies and ensuring that security controls are uniformly applied across all workloads. They enable continuous monitoring by providing comprehensive activity reports and alerts for suspicious behavior, thus addressing the client’s need for real-time threat detection. Furthermore, CASBs often integrate with existing security frameworks, enhancing the institution's overarching security posture.
Evaluation of Other Options

A: Implement a Virtual Private Network (VPN) : While this ensures secure data transmission, it does not inherently provide monitoring capabilities or policy enforcement across diverse cloud resources. VPNs primarily focus on secure connections rather than comprehensive cloud security management.
C: Use multi-factor authentication for all cloud user accounts : While this enhances user authentication security, it is limited in scope as it does not address monitoring or policy enforcement for the overall cloud environment. It mitigates access-related risks but overlooks broader security management needs.
D: Use client-side encryption for all stored data : Client-side encryption protects data at rest but does not facilitate continuous monitoring or real-time alerts. It primarily secures data without addressing the need for visibility and management of cloud resources.


Reference:

https://www.gartner.com/en/information-technology/glossary/cloud-access-security-broker-casb https://cloudsecurityalliance.org/research/working-groups/cloud-access-security-brokers/ https://www.forbes.com/sites/bernardmarr/2020/01/14/the-role-of-cloud-access-security-brokers-in-cloud-security/?sh=5f68b5044508



Consider a hypothetical situation where an attacker, known for his proficiency in SQL Injection attacks, is targeting your web server. This adversary meticulously crafts 'q' malicious SQL queries, each inducing a delay of 'd' seconds in the server response. This delay in response is an indicator of a potential attack. If the total delay, represented by the product 'q*d', crosses a defined threshold 'T', an alert is activated in your security system. Furthermore, it is observed that the attacker prefers prime numbers for 'q', and 'd' follows a pattern in the Fibonacci sequence. Now, consider 'd=13' seconds (a Fibonacci number) and various values of 'q' (a prime number) and 'T'.
Which among the following scenarios will most likely trigger an alert?

  1. q=17, T=220: Even though the attacker increases 'q', the total delay ('q*d' = 221 seconds) just surpasses the threshold, possibly activating an alert.
  2. q=13, T=180: In this case, the total delay caused by the attacker ('q*d' = 169 seconds) breaches the threshold, likely leading to the triggering of a security alert.
  3. q=11, T=150: Here, the total delay induced by the attacker ('q*d' = 143 seconds) does not surpass the threshold, so the security system remains dormant.
  4. q=19, T=260: Despite the attacker's increased effort, the total delay ('q*d' = 247 seconds) does not exceed the threshold, thus no alert is triggered.

Answer(s): A

Explanation:

A is correct because it confirms that the total delay caused by an SQL injection attack surpasses the threshold by a slight margin, thereby likely triggering an alert.
The scenario presented in option A indicates that with ( q = 17 ) and ( d = 13 ), the total delay is calculated as ( 17 \times 13 = 221 ) seconds, which exceeds the alert threshold ( T = 220 ) seconds. This slight crossing over the defined threshold effectively activates the alert mechanism, aligning with security protocols designed to flag potential attacks.
Evaluation of Other Options :
B: q=13, T=180 : Here, the total delay is calculated as ( 13 \times 13 = 169 ) seconds. Although ( 169 < 180 ), it does not breach the threshold, meaning no alert would be triggered despite the attack occurring.
C: q=11, T=150 : The total delay in this case is ( 11 \times 13 = 143 ) seconds, which is well below the threshold of ( 150 ) seconds. As such, this scenario also fails to trigger an alert due to insufficient total delay.
D: q=19, T=260 : The total delay yields ( 19 \times 13 = 247 ) seconds, which, while significant, still remains below the ( 260 ) second threshold. This does not exceed the threshold and thus would leave the security system inactive.
In conclusion, option A exemplifies the critical parameters set out for triggering an alert while the other options do not meet the necessary conditions to instigate a security response.
References:
https://www.owasp.org/index.php/SQL_Injection_Prevention_Cheat_Sheet https://www.csoonline.com/article/3299441/sql-injection-attacks-facts-and-myths.html https://www.veracode.com/security/sql-injection


Reference:

References:
https://www.owasp.org/index.php/SQL_Injection_Prevention_Cheat_Sheet https://www.csoonline.com/article/3299441/sql-injection-attacks-facts-and-myths.html https://www.veracode.com/security/sql-injection



You are an ethical hacker contracted to conduct a security audit for a company. During the audit, you discover that the company's wireless network is using WEP encryption. You understand the vulnerabilities associated with WEP and plan to recommend a more secure encryption method.
Which of the following would you recommend as a suitable replacement to enhance the security of the company's wireless network?

  1. Open System authentication
  2. WPA2-PSK with AES encryption
  3. SSID broadcast disabling
  4. MAC address filtering

Answer(s): B

Explanation:

B: WPA2-PSK with AES encryption is the most suitable replacement for enhancing the security of the company’s wireless network.
WEP (Wired Equivalent Privacy) is fundamentally flawed due to its small initialization vector and vulnerabilities that allow attackers to easily crack the encryption. WPA2-PSK (Wi-Fi Protected Access 2 with Pre-Shared Key) utilizes the more robust AES (Advanced Encryption Standard) for encryption, providing a significantly higher level of security against both passive and active attacks by ensuring confidentiality and integrity of the transmitted data. Furthermore, WPA2 incorporates mutual authentication and dynamic key generation, mitigating the risks prevalent in WEP.
Evaluation of Incorrect Options:

A: Open System Authentication : This method does not provide any encryption and allows arbitrary devices to connect without any level of security. It effectively opens the network to unauthorized access, making it highly susceptible to attacks.
C: SSID Broadcast Disabling : While disabling SSID broadcasting may obscure the network from casual users,
it does not prevent determined attackers from discovering the network. This method merely adds a marginal layer of security and does not address the fundamental vulnerabilities of the encryption itself.
D: MAC Address Filtering : Though MAC address filtering can restrict access to the network based on device MAC addresses, it is not a foolproof solution. MAC addresses can be spoofed, and this method requires significant administrative overhead for managing the list of allowed devices, which increases the likelihood of human error.
Implementing WPA2-PSK with AES encryption addresses the critical weaknesses inherent in WEP and significantly enhances the overall security of the wireless network.
WPA2 Security: Overview and BenefitsUnderstanding WEP VulnerabilitiesComparing Wireless Security Protocols



You are the lead cybersecurity analyst at a multinational corporation that uses a hybrid encryption system to secure inter-departmental communications. The system uses RSA encryption for key exchange and AES for data encryption, taking advantage of the strengths of both asymmetric and symmetric encryption. Each RSA key pair has a size of 'n' bits, with larger keys providing more security at the cost of slower performance. The time complexity of generating an RSA key pair is O(n^2), and AES encryption has a time complexity of O(n). An attacker has developed a quantum algorithm with time complexity O((log n)^2) to crack RSA encryption. Given 'n=4000' and variable 'AES key size', which scenario is likely to provide the best balance of security and performance?

  1. AES key size=128 bits: This configuration provides less security than option A, but RSA key generation and AES encryption will be faster.
  2. AES key size=256 bits: This configuration provides a high level of security, but RSA key generation may be slow.
  3. AES key size=192 bits: This configuration is a balance between options A and B, providing moderate security and performance.
  4. AES key size=512 bits: This configuration provides the highest level of security but at a significant performance cost due to the large AES key size.

Answer(s): C

Explanation:

C is correct because an AES key size of 192 bits offers a favorable compromise between security and performance in a hybrid encryption system.
Reasoning:
1. Security Level : AES with a 192-bit key provides robust encryption, offering a significant security margin against practical attacks while being less computationally intensive than a 256-bit key. 2. Performance : Given that AES encryption has a time complexity of O(n), a 192-bit key strikes an optimal balance where the trade-off between security and processing speed remains effective for rapid inter-departmental communications. 3. Quantum Resistance : Considering the rise of quantum computing, the O((log n)^2) complexity for cracking RSA highlights vulnerabilities with larger RSA key sizes. AES 192 strikes a balance; it is not as heavy as 256-bit while still maintaining good resistance against classical and quantum attacks.
Evaluation of Other Options:
A (AES 128 bits) : While this configuration may perform fastest, it compromises security significantly. AES-128
is increasingly viewed as less secure in light of potential future advancements in cryptography and computing, especially with quantum threats. B (AES 256 bits) : Though offering higher security, this configuration incurs performance costs, especially in environments requiring frequent data processing. Slower RSA key generation due to larger key size makes this impractical for frequent communications. D (AES 512 bits) : A 512-bit AES key not only exceeds reasonable security measures but also poses substantial performance penalties. This size is disproportionate for current attack vectors and offers diminishing returns on security as computational resources required for encryption escalate excessively.
References:
https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.197.pdf https://crypto.stanford.edu/pbc/notes/publickey.pdf https://www.schneier.com/academic/archives/1996/02/secure_encryption.html


Reference:

References:
https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.197.pdf https://crypto.stanford.edu/pbc/notes/publickey.pdf https://www.schneier.com/academic/archives/1996/02/secure_encryption.html



An experienced cyber attacker has created a fake LinkedIn profile, successfully impersonating a high-ranking official from a well-established company, to execute a social engineering attack. The attacker then connected with other employees within the organization, receiving invitations to exclusive corporate events and gaining access to proprietary project details shared within the network.
What advanced social engineering technique has the attacker primarily used to exploit the system and what is the most likely immediate threat to the organization?

  1. Whaling and Targeted Attacks
  2. Pretexting and Network Vulnerability
  3. Spear Phishing and Spam
  4. Baiting and Involuntary Data Leakage

Answer(s): A

Explanation:

A is correct because the attacker employed whaling and targeted attacks by using a fake LinkedIn profile to impersonate a high-ranking official.
In this scenario, the attacker crafted a believable persona that allowed them to engage with employees and gain unauthorized access to sensitive organizational data.
Whaling, a form of social engineering, specifically targets individuals in positions of power, making it an effective tactic for obtaining confidential information or facilitating further breaches. The immediate threat to the organization includes exposure of proprietary information, potential data breaches, and compromised corporate events that could lead to broader security ramifications.
Evaluation of Other Options:
B: Pretexting and Network Vulnerability While pretexting involves creating a fabricated scenario to steal information, it does not fully encapsulate the targeted nature of the attack where a specific individual was impersonated. Network vulnerability implies weaknesses in infrastructure that were not the primary focus of the impersonation strategy used here.
C: Spear Phishing and Spam Spear phishing involves attacking specifically targeted individuals through deceptive emails, but the situation described revolves around social interactions on a professional network rather than direct email communication. Spam does not apply since the attack was personalized, and not indiscriminately reaching a large audience.
D: Baiting and Involuntary Data Leakage Baiting involves enticing victims to disclose information or engage in actions that compromise security, but there is no indication that the employees were lured with any baiting techniques in this scenario. Involuntary data leakage does not capture the intent behind the targeted impersonation, which was designed specifically to exploit trust.


Reference:

https://www.csocenter.com/whaling-and-the-risks-of-targeted-attacks " target="_blank"> https://www.csocenter.com/whaling-and-the-risks-of-targeted-attacks https://www.cybintsolutions.com/the-danger-of-whaling-attacks " target="_blank"> https://www.cybintsolutions.com/the-danger-of-whaling-attacks https://www.forcepoint.com/cyber-edu/whaling-attacks
" target="_blank"> https://www.forcepoint.com/cyber-edu/whaling-attacks



As a cybersecurity analyst for a large corporation, you are auditing the company's mobile device management (MDM) policy. One of your areas of concern is data leakage from company-provided smartphones. You are worried about employees unintentionally installing malicious apps that could access sensitive corporate data on their devices.
Which of the following would be an effective measure to prevent such data leakage?

  1. Require biometric authentication for unlocking devices.
  2. Regularly change Wi-Fi passwords used by the devices.
  3. Mandate the use of VPNs when accessing corporate data.
  4. Enforce a policy that only allows app installations from approved corporate app stores.

Answer(s): D

Explanation:

D is correct because enforcing a policy that allows app installations only from approved corporate app stores directly mitigates the risk of malicious applications accessing sensitive data.
This measure significantly reduces the avenue for data leakage by ensuring that only vetted applications, which meet the organization’s security standards, can be downloaded and installed. Approved corporate app stores typically have stringent validation processes that minimize the risk associated with third-party app downloads, thus enforcing a baseline of security.
Critique of Other Options:

A: Require biometric authentication for unlocking devices.
While biometric authentication enhances device security by preventing unauthorized access, it does not directly address the installation of potentially malicious applications. An employee could still download harmful apps that may steal or leak sensitive data once the device is unlocked.
B: Regularly change Wi-Fi passwords used by the devices. Changing Wi-Fi passwords helps prevent unauthorized network access but does not prevent employees from installing rogue applications on their devices. If malicious apps are allowed on the devices, they can still communicate over any Wi-Fi connection, undermining any benefits from regular password changes.
C: Mandate the use of VPNs when accessing corporate data. Using a VPN adds a layer of security for data transmission but is ineffective against data leakage from installed malicious apps. Even with VPN protection, malicious applications can still operate undetected within the device, leading to data breaches.
Implementing a policy that restricts app installations to approved sources is a foundational step in an effective mobile device management strategy aimed at reducing data leakage risks.
References:
https://www.cisa.gov/publications-library https://www.nist.gov/publications https://www.owasp.org/index.php/Main_Page


Reference:

References:
https://www.cisa.gov/publications-library https://www.nist.gov/publications https://www.owasp.org/index.php/Main_Page



A certified ethical hacker is carrying out an email footprinting exercise on a targeted organization using eMailTrackerPro. They want to map out detailed information about the recipient's activities after receiving the email.
Which among the following pieces of information would NOT be directly obtained from eMailTrackerPro during this exercise?

  1. Geolocation of the recipient
  2. Tvpe of device used to open the email
  3. The email accounts related to the domain of the organization
  4. The time recipient spent reading the email

Answer(s): D

Explanation:

D is correct because eMailTrackerPro cannot determine the exact time a recipient spends reading an email.
In a detailed assessment of the functions of eMailTrackerPro, it primarily focuses on tracking engagement metrics such as email opens, clicks, and device type—thereby providing insights into user behavior. However, the software lacks the capabilities to measure engagement time accurately. Engagement metrics can indicate when and how an email was accessed but cannot quantify time spent on the content itself. This limitation undermines the ability to capture detailed behavioral patterns, which are critical for a comprehensive footprint analysis.
Evaluation of Other Options:

A: Geolocation of the recipient: This data is retrievable through IP address tracking when the recipient opens the email, providing insights into their geographical location.
B: Type of device used to open the email: eMailTrackerPro can detect the user-agent string of the client device, thereby allowing the hacker to determine if the email was accessed on a mobile device, tablet, or desktop.
C: The email accounts related to the domain of the organization: While eMailTrackerPro focuses on specific tracking metrics, it does not aggregate email accounts associated with a domain directly. However, this information can often be obtained through additional passive reconnaissance methods, making this option misleading in terms of direct acquisition via eMailTrackerPro alone.
In summary, Option D stands out as the only information not directly obtainable through the capabilities of eMailTrackerPro, as it fails to measure the duration of email engagement conclusively.
https://www.spiceworks.com/tech/email/articles/email-tracking-ethics/
https://www.investopedia.com/terms/e/email-tracking.asp https://www.learnpurple.com/what-is-email-tracking-and-how-does-it-work/



You are a cybersecurity trainee tasked with securing a small home network. The homeowner is concerned about potential "Wi-Fi eavesdropping," where unauthorized individuals could intercept the wireless communications.
What would be the most effective first step to mitigate this risk, considering the simplicity and the residential nature of the network?

  1. Disable the network's SSID broadcast
  2. Enable encryption on the wireless network
  3. Enable MAC address filtering
  4. Reduce the signal strength of the wireless router

Answer(s): B

Explanation:

Enabling encryption on the wireless network is the most effective first step to mitigate the risk of Wi-Fi eavesdropping.
Encryption, specifically WPA3 (Wi-Fi Protected Access 3), ensures that data transmitted over the wireless network is securely encrypted, thus protecting against unauthorized interception. Without encryption, any data sent over the network can be easily captured using readily available tools, exposing sensitive information. Strong encryption protocols create a robust barrier against eavesdroppers, safeguarding user privacy and sensitive data, making it a fundamental practice in securing wireless communications.
Evaluation of Other Options:

A: Disable the network's SSID broadcast : While this makes the network less visible to casual users, it does not impede determined attackers who can still discover hidden networks using specialized tools. This measure offers minimal security enhancement and can lead to a false sense of security, primarily because the SSID is transmitted in additional information packets regardless of the broadcast setting.
C: Enable MAC address filtering : This method permits only specific devices to connect to the network based on their unique MAC addresses. However, MAC addresses can be spoofed, rendering this approach ineffective against any skilled attacker. Moreover, managing MAC address lists can be cumbersome in a home environment, where devices frequently change.
D: Reduce the signal strength of the wireless router : Decreasing the router's signal strength may limit the range of the network, but it does not secure the transmission itself. An attacker within close proximity can still intercept communications. This method also risks reducing performance for legitimate users who may want to connect from different rooms or areas of the house.
In conclusion, enabling encryption provides a foundational level of security necessary for protecting a home network against Wi-Fi eavesdropping, while the other options either provide inadequate protection or create unnecessary complications.
References:
https://www.networkworld.com/article/3249011/the-case-for-wifi-encryption.html https://www.csoonline.com/article/3538731/how-to-secure-your-home-wi-fi-network.html https://www.cyber.gov.au/acsc/view-all-content/advice/wi-fi-security


Reference:

References:
https://www.networkworld.com/article/3249011/the-case-for-wifi-encryption.html https://www.csoonline.com/article/3538731/how-to-secure-your-home-wi-fi-network.html https://www.cyber.gov.au/acsc/view-all-content/advice/wi-fi-security



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