CompTIA PT0-003リアル試験問題テストエンジン問題集トレーニングには426問あります
PT0-003実際の問題解答PDFには100%カバー率リアル試験問題
質問 # 68
A penetration tester needs to complete cleanup activities from the testing lead. Which of the following should the tester do to validate that reverse shell payloads are no longer running?
- A. Restore the firewall settings of the original affected hosts.
- B. Run scripts to terminate the implant on affected hosts.
- C. Spin down the C2 listeners.
- D. Exit from C2 listener active sessions.
正解：B
解説：
To ensure that reverse shell payloads are no longer running, it is essential to actively terminate any implanted malware or scripts. Here's why option A is correct:
Run Scripts to Terminate the Implant: This ensures that any reverse shell payloads or malicious implants are actively terminated on the affected hosts. It is a direct and effective method to clean up after a penetration test.
Spin Down the C2 Listeners: This stops the command and control listeners but does not remove the implants from the hosts.
Restore the Firewall Settings: This is important for network security but does not directly address the termination of active implants.
Exit from C2 Listener Active Sessions: This closes the current sessions but does not ensure that implants are terminated.
Reference from Pentest:
Anubis HTB: Demonstrates the process of cleaning up and ensuring that all implants are removed after an assessment.
Forge HTB: Highlights the importance of thoroughly cleaning up and terminating any payloads or implants to leave the environment secure post-assessment.
質問 # 69
A penetration testing firm wants to hire three additional consultants to support a newly signed long-term contract with a major customer. The following is a summary of candidate background checks:
Which of the following candidates should most likely be excluded from consideration?
- A. Candidate 4
- B. Candidate 1
- C. Candidate 2
- D. Candidate 3
正解：C
解説：
In the context of penetration testing or cybersecurity, hiring a consultant with a background in unauthorized system access could present both risks and benefits. From a risk management perspective, Candidate 2's history of unauthorized system access is a significant red flag. Such past behavior indicates a willingness to operate outside of legal and ethical boundaries, which could pose a risk to the firm and its clients, especially in a role that requires trust and adherence to legal guidelines.
However, the very skills that enabled unauthorized access might also provide the firm with deep insights into hacker methodologies, potentially enhancing the firm's capability to secure systems against such intrusions. It is a common practice in the cybersecurity industry to employ individuals with a history of hacking in roles where they can contribute positively, known as "ethical hacking" or "white hat" roles.
Nonetheless, given the legal and ethical responsibilities inherent in cybersecurity work, Candidate 2's past criminal charge of unauthorized system access is the most pertinent to the role and poses the most direct risk to the firm's operations and reputation. It would be crucial for the firm to conduct a thorough risk assessment, including the nature of the unauthorized access, the candidate's subsequent actions, rehabilitation, and current capabilities, before making a hiring decision.
From the provided information, it appears that Candidate 2 should most likely be excluded from consideration due to the direct relevance of their criminal charges to the position in question. Without evidence of rehabilitation and a clear demonstration of ethical standards, the liability risks might outweigh the potential benefits to the firm.
質問 # 70
A penetration tester is testing a power plant ' s network and needs to avoid disruption to the grid. Which of the following methods is most appropriate to identify vulnerabilities in the network?
- A. Execute a testing framework to validate vulnerabilities on the devices.
- B. Run a network mapper tool to get an understanding of the devices.
- C. Configure a port mirror and review the network traffic.
- D. Configure a network scanner engine and execute the scan.
正解：C
解説：
When testing a power plant ' s network and needing to avoid disruption to the grid, configuring a port mirror and reviewing the network traffic is the most appropriate method to identify vulnerabilities without causing disruptions.
Port Mirroring:
Definition: Port mirroring (SPAN - Switched Port Analyzer) is a method of monitoring network traffic by duplicating packets from one or more switch ports to another port where a monitoring device is connected.
Purpose: Allows passive monitoring of network traffic without impacting network operations or device performance.
Avoiding Disruption:
Non-Intrusive: Port mirroring is non-intrusive and does not generate additional traffic or load on the network devices, making it suitable for sensitive environments like power plants where disruption is not acceptable.
Other Options:
Network Scanner Engine: Active scanning might disrupt network operations or devices, which is not suitable for critical infrastructure.
Testing Framework: Validating vulnerabilities on devices might involve active testing, which can be disruptive.
Network Mapper Tool: Running a network mapper tool (like Nmap) actively scans the network and might disrupt services.
Pentest References:
Passive Monitoring: Passive techniques such as port mirroring are essential in environments where maintaining operational integrity is critical.
Critical Infrastructure Security: Understanding the need for non-disruptive methods in critical infrastructure penetration testing to ensure continuous operations.
By configuring a port mirror and reviewing network traffic, the penetration tester can identify vulnerabilities in the power plant ' s network without risking disruption to the grid.
======
質問 # 71
A penetration tester has been provided with only the public domain name and must enumerate additional information for the public-facing assets.
INSTRUCTIONS
Select the appropriate answer(s), given the output from each section.
Output 1
正解：
解説：
See all the solutions below in Explanation.
Explanation:
A screenshot of a computer Description automatically generated
A screenshot of a computer Description automatically generated
A screenshot of a computer Description automatically generated
質問 # 72
A penetration tester successfully clones a source code repository and then runs the following command:
find . -type f -exec egrep -i "token|key|login" {} \;
Which of the following is the penetration tester conducting?
- A. Data tokenization
- B. Password spraying
- C. Source code analysis
- D. Secrets scanning
正解：D
解説：
Penetration testers search for hardcoded credentials, API keys, and authentication tokens in source code repositories to identify secrets leakage.
Secrets scanning:
The find and egrep command scans all files recursively for sensitive keywords like "token," "key," and "login".
Attackers use tools like TruffleHog and GitLeaks to automate secret discovery.
質問 # 73
A penetration tester is getting ready to conduct a vulnerability scan to evaluate an environment that consists of a container orchestration cluster. Which of the following tools would be best to use for this purpose?
- A. CME
- B. NSE
- C. Trivy
- D. Nessus
正解：C
解説：
In a container orchestration environment (for example, Kubernetes), the most valuable vulnerability scanning capability is one that understands container images, packages, and misconfigurations that commonly occur in containerized workloads. Trivy is specifically designed for container security assessment: it scans container images and the underlying OS/application dependencies for known vulnerabilities and can also identify misconfigurations relevant to cloud-native deployments. This aligns closely with PenTest+ guidance that testers should choose tools that match the technology stack being assessed-container ecosystems require image- and dependency-aware scanning rather than only traditional host/service scanning.
質問 # 74
A penetration tester is performing an assessment focused on attacking the authentication identity provider hosted within a cloud provider. During the reconnaissance phase, the tester finds that the system is using OpenID Connect with OAuth and has dynamic registration enabled. Which of the following attacks should the tester try first?
- A. A brute-force attack against the authentication system
- B. A mask attack against the authentication system
- C. A replay attack against the authentication flow in the system
- D. A password-spraying attack against the authentication system
正解：C
解説：
OpenID Connect (OIDC) with OAuth allows applications to authenticate users using third-party identity providers (IdPs). If dynamic registration is enabled, attackers can abuse this feature to capture and replay authentication requests.
Replay attack (Option C):
Attackers capture legitimate authentication tokens and reuse them to impersonate users.
OIDC uses JWTs (JSON Web Tokens), which may not expire quickly, making replay attacks highly effective.
Reference:
Incorrect options:
Option A (Password spraying): Effective against user accounts, but this attack targets authentication tokens.
Option B (Brute-force attack): Less effective against OAuth-based authentication since tokens replace passwords.
Option D (Mask attack): Related to password cracking, not OAuth authentication attacks.
質問 # 75
A penetration tester is authorized to perform a DoS attack against a host on a network. Given the following input:
ip = IP("192.168.50.2")
tcp = TCP(sport=RandShort(), dport=80, flags="S")
raw = RAW(b"X"*1024)
p = ip/tcp/raw
send(p, loop=1, verbose=0)
Which of the following attack types is most likely being used in the test?
- A. SYN flood
- B. MDK4
- C. Smurf attack
- D. FragAttack
正解：A
解説：
A SYN flood attack exploits the TCP handshake process by sending a large number of SYN packets to a target, consuming resources and causing a denial of service.
Step-by-Step Explanation
Understanding the Script:
ip = IP("192.168.50.2"): Sets the target IP address.
tcp = TCP(sport=RandShort(), dport=80, flags="S"): Creates a TCP packet with a SYN flag set.
raw = RAW(b"X"*1024): Adds a payload to the packet.
p = ip/tcp/raw: Combines IP, TCP, and RAW layers into a single packet.
send(p, loop=1, verbose=0): Sends the packet in a loop continuously.
Purpose of SYN Flood:
Resource Exhaustion: The attack consumes resources by opening many half-open connections.
Denial of Service: The target system becomes unable to process legitimate requests due to resource depletion.
Detection and Mitigation:
Rate Limiting: Implement rate limiting on incoming SYN packets.
SYN Cookies: Use SYN cookies to handle large numbers of SYN requests without consuming resources.
Firewalls and IDS: Deploy firewalls and Intrusion Detection Systems (IDS) to detect and mitigate SYN flood attacks.
Reference from Pentesting Literature:
SYN flood attacks are a classic denial-of-service technique discussed in penetration testing guides.
HTB write-ups frequently illustrate the use of SYN flood attacks to test the resilience of network services.
Reference:
Penetration Testing - A Hands-on Introduction to Hacking
HTB Official Writeups
質問 # 76
Which of the following members of a client organization are most likely authorized to provide a signed authorization letter prior to the start date of a penetration test?
- A. The executive management team and legal personnel
- B. The human resources team
- C. Organizational security personnel
- D. The IT department
正解：A
質問 # 77
Which of the following is a rules engine for managing public cloud accounts and resources?
- A. Cloud Brute
- B. Scout Suite
- C. Pacu
- D. Cloud Custodian
正解：D
解説：
Cloud Custodian is a rules engine for managing public cloud accounts and resources. It allows users to define policies to enable a well managed cloud infrastructure, that's both secure and cost optimized. It consolidates many of the adhoc scripts organizations have into a lightweight and flexible tool, with unified metrics and reporting.
Cloud Custodian is a tool that can be used to manage public cloud accounts and resources. Cloud Custodian can define policies and rules for cloud resources based on various criteria, such as tags, filters, actions, modes, or schedules. Cloud Custodian can enforce compliance, governance, security, cost optimization, and operational efficiency for cloud resources. Cloud Custodian supports multiple public cloud providers, such as AWS, Azure, GCP, and Kubernetes. Cloud Brute is a tool that can be used to enumerate cloud platforms and discover hidden files and buckets. Pacu is a tool that can be used to exploit AWS environments and perform post-exploitation actions. Scout Suite is a tool that can be used to audit cloud environments and identify security issues.
質問 # 78
Which of the following elements in a lock should be aligned to a specific level to allow the key cylinder to turn?
- A. Plug
- B. Shackle
- C. Pins
- D. Latches
正解：C
解説：
In a pin tumbler lock, pins must be aligned to the shear line by the correct key to allow the cylinder (plug) to turn. Aligning the pins is what enables unlocking the lock.
質問 # 79
You are a penetration tester reviewing a client's website through a web browser.
INSTRUCTIONS
Review all components of the website through the browser to determine if vulnerabilities are present.
Remediate ONLY the highest vulnerability from either the certificate, source, or cookies.
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.
正解：
解説：
Explanation:
A screenshot of a computer Description automatically generated
質問 # 80
Which of the following is the most common vulnerability associated with loT devices that are directly connected to the internet?
- A. Susceptibility to DDoS attacks
- B. Inability to network
- C. Unsupported operating systems
- D. The existence of default passwords
正解：D
解説：
IoT devices are often shipped with default passwords, which are easily discoverable and widely known.
Many users fail to change these default credentials, leaving the devices vulnerable to unauthorized access.
This issue is one of the most common vulnerabilities associated with IoT devices connected directly to the internet. Attackers can exploit these default passwords to gain control over the devices, potentially leading to a range of malicious activities, including the recruitment of the devices into botnets for Distributed Denial of Service (DDoS) attacks, data breaches, or other cybercriminal activities.
質問 # 81
Which of the following factors would a penetration tester most likely consider when testing at a location?
- A. Ensure all testers can access all sites.
- B. Determine if visas are required.
- C. Verify the tools being used are legal for use at all sites.
- D. Establish the time of the day when a test can occur.
正解：D
解説：
One of the factors that a penetration tester would most likely consider when testing at a location is to establish the time of day when a test can occur. This factor can affect the scope, duration, and impact of the test, as well as the availability and response of the client and the testers. Testing at different times of day can have different advantages and disadvantages, such as testing during business hours to simulate realistic scenarios and traffic patterns, or testing after hours to reduce disruption and interference. Testing at different locations may also require adjusting for different time zones and daylight saving times. Establishing the time of day when a test can occur can help plan and coordinate the test effectively and avoid confusion or conflict with the client or other parties involved in the test. The other options are not factors that a penetration tester would most likely consider when testing at a location.
質問 # 82
A penetration tester needs to evaluate the order in which the next systems will be selected for testing. Given the following output:
Which of the following targets should the tester select next?
- A. financesite
- B. legaldatabase
- C. hrdatabase
- D. fileserver
正解：D
解説：
Evaluation Criteria:
CVSS (Common Vulnerability Scoring System): Indicates the severity of vulnerabilities, with higher scores representing more critical vulnerabilities.
EPSS (Exploit Prediction Scoring System): Estimates the likelihood of a vulnerability being exploited in the wild.
Analysis:
hrdatabase: CVSS = 9.9, EPSS = 0.50
financesite: CVSS = 8.0, EPSS = 0.01
legaldatabase: CVSS = 8.2, EPSS = 0.60
fileserver: CVSS = 7.6, EPSS = 0.90
Selection Justification:
fileserver has the highest EPSS score of 0.90, indicating a high likelihood of exploitation despite having a slightly lower CVSS score compared to other targets.
This makes it a critical target for immediate testing to mitigate potential exploitation risks.
Pentest References:
Risk Prioritization: Balancing between severity (CVSS) and exploitability (EPSS) is crucial for effective vulnerability management.
Risk Assessment: Evaluating both the impact and the likelihood of exploitation helps in making informed decisions about testing priorities.
By selecting the fileserver, the penetration tester focuses on a target that is highly likely to be exploited, addressing the most immediate risk based on the given scores.
Top of Form
Bottom of Form
質問 # 83
Which of the following are valid reasons for including base, temporal, and environmental CVSS metrics in the findings section of a penetration testing report? (Select two).
- A. Including links to the proof-of-concept exploit itself
- B. Adding risk levels to each asset
- C. Providing information on attack complexity and vector
- D. Prioritizing compliance information needed for an audit
- E. Helping to prioritize remediation based on threat context
- F. Providing details on how to remediate vulnerabilities
正解：C、E
解説：
The Common Vulnerability Scoring System (CVSS) provides a standardized way to evaluate the severity of security vulnerabilities. It includes:
Base Metrics: Inherent characteristics of a vulnerability (e.g., attack vector, complexity).
Temporal Metrics: Factors that change over time (e.g., exploit availability).
Environmental Metrics: Customization based on an organization's environment.
Correct answers:
Helping to prioritize remediation based on threat context (Option B):
CVSS scores help organizations prioritize vulnerabilities based on real-world impact.
The Environmental metric allows customization based on business risk.
Reference: CompTIA PenTest+ PT0-003 Official Study Guide - "Risk Prioritization in Reporting" Providing information on attack complexity and vector (Option D):
CVSS Base scores define attack complexity (e.g., low vs. high) and attack vector (e.g., network vs. physical).
This helps security teams understand how a vulnerability can be exploited.
Reference: CompTIA PenTest+ PT0-003 Official Study Guide - "CVSS Metrics in Vulnerability Assessment" Incorrect options:
Option A (Providing remediation details): CVSS does not include remediation steps; it only scores severity.
Option C (Proof-of-concept exploit links): CVSS scores are not based on specific exploits.
Option E (Compliance information): CVSS focuses on technical risk, not regulatory compliance.
Option F (Adding risk levels to assets): CVSS evaluates individual vulnerabilities, not asset risk classification.
質問 # 84
......
PassTest PT0-003試験練習テスト問題：https://www.passtest.jp/CompTIA/PT0-003-shiken.html
PT0-003試験問題解答：https://drive.google.com/open?id=1XRlqNabeJ9agkxCWfWsdtf29ENHoIVMc