2026 Realistic PT0-003 Dumps Latest CompTIA Practice Tests Dumps
PT0-003 Dumps PDF - PT0-003 Real Exam Questions Answers
NEW QUESTION # 103
Which of the following post-exploitation activities allows a penetration tester to maintain persistent access in a compromised system?
- A. Installing a bind shell
- B. Creating registry keys
- C. Executing a process injection
- D. Setting up a reverse SSH connection
Answer: B
Explanation:
Maintaining persistent access in a compromised system is a crucial goal for a penetration tester after achieving initial access. Here's an explanation of each option and why creating registry keys is the preferred method:
* Creating registry keys (answer: A):
* Explanation: Modifying or adding specific registry keys can ensure that malicious code or backdoors are executed every time the system starts, thus maintaining persistence.
* Advantages: This method is stealthy and can be effective in maintaining access over long periods, especially on Windows systems.
* Example: Adding a new entry to the HKLM\Software\Microsoft\Windows\CurrentVersion\Run registry key to execute a malicious script upon system boot.
* References: Persistence techniques involving registry keys are common in penetration tests and are highlighted in various cybersecurity resources as effective methods to maintain access.
* Installing a bind shell (Option B):
* Explanation: A bind shell listens on a specific port and waits for an incoming connection from the attacker.
* Drawbacks: This method is less stealthy and can be easily detected by network monitoring tools.
It also requires an open port, which might be closed or filtered by firewalls.
* Executing a process injection (Option C):
* Explanation: Process injection involves injecting malicious code into a running process to evade detection.
* Drawbacks: While effective for evading detection, it doesn't inherently provide persistence. The injected code will typically be lost when the process terminates or the system reboots.
* Setting up a reverse SSH connection (Option D):
* Explanation: A reverse SSH connection allows the attacker to connect back to their machine from the compromised system.
* Drawbacks: This method can be useful for maintaining a session but is less reliable for long-term persistence. It can be disrupted by network changes or monitoring tools.
Conclusion: Creating registry keys is the most effective method for maintaining persistent access in a compromised system, particularly in Windows environments, due to its stealthiness and reliability.
NEW QUESTION # 104
A security firm has been hired to perform an external penetration test against a company. The only information the firm received was the company name. Which of the following passive reconnaissance approaches would be MOST likely to yield positive initial results?
- A. Run a vulnerability scan against the company's external website.
- B. Specially craft and deploy phishing emails to key company leaders.
- C. Scrape web presences and social-networking sites.
- D. Runtime the company's vendor/supply chain.
Answer: C
NEW QUESTION # 105
A penetration tester needs to scan a remote infrastructure with Nmap. The tester issues the following command:
nmap 10.10.1.0/24
Which of the following is the number of TCP ports that will be scanned?
- A. 65,535
- B. 0
- C. 1,024
- D. 1,000
Answer: B
Explanation:
By default, Nmap scans the top 1,000 most commonly used TCP ports unless otherwise specified.
Option A (256) #: Incorrect. This refers to the number of hosts in a /24 subnet, not the number of ports scanned.
Option B (1,000) #: Correct. Nmap defaults to scanning the 1,000 most common TCP ports unless the -p flag is used to specify a different range.
Option C (1,024) #: Incorrect. The first 1,024 ports are well-known ports, but Nmap scans 1,000 by default, not 1,024.
Option D (65,535) #: Incorrect. Nmap only scans all ports if the -p- flag is used (e.g., nmap -p- <target>).
# Reference: CompTIA PenTest+ PT0-003 Official Guide - Network Scanning with Nmap
NEW QUESTION # 106
A penetration tester runs a vulnerability scan that identifies several issues across numerous customer hosts.
The executive report outlines the following:
The client is concerned about the availability of its consumer-facing production application. Which of the following hosts should the penetration tester select for additional manual testing?
- A. Server 2
- B. Server 4
- C. Server 1
- D. Server 3
Answer: D
Explanation:
Since the client is worried about the availability of their consumer-facing application, the perimeter network web server (Server 3) is the most critical because:
* It is internet-facing, making it a prime target for attackers.
* A compromise could lead to data breaches, downtime, or service disruptions.
* Even though it has fewer vulnerabilities (14 vs. 92 on QA server), its exposure is higher.
* Option A (Development sandbox server) #: Internal and not publicly accessible.
* Option B (Back-office file transfer server) #: Important, but not consumer-facing.
* Option C (Perimeter web server) #: Correct. Publicly accessible and critical to operations.
* Option D (Developer QA server) #: May have more vulnerabilities, but it's less critical.
# Reference: CompTIA PenTest+ PT0-003 Official Guide - Prioritizing Vulnerability Testing
NEW QUESTION # 107
Which of the following is most important when communicating the need for vulnerability remediation to a client at the conclusion of a penetration test?
- A. Articulation of alignment
- B. Articulation of cause
- C. Articulation of impact
- D. Articulation of escalation
Answer: C
Explanation:
When concluding a penetration test, effectively communicating the need for vulnerability remediation is crucial. Here's why the articulation of impact is the most important aspect:
* Articulation of Cause (Option A):
* Explanation: This involves explaining the root cause of the vulnerabilities discovered during the penetration test.
* Importance: While understanding the cause is essential for long-term remediation and prevention, it does not directly convey the urgency or potential consequences of the vulnerabilities.
* Articulation of Impact (Option B):
* Explanation: This involves describing the potential consequences and risks associated with the vulnerabilities. It includes the possible damage, such as data breaches, financial losses, reputational damage, and operational disruptions.
* Importance: The impact provides the client with a clear understanding of the severity and urgency of the issues. It helps prioritize remediation efforts based on the potential damage that could be inflicted if the vulnerabilities are exploited.
NEW QUESTION # 108
A penetration tester needs to identify all vulnerable input fields on a customer website. Which of the following tools would be best suited to complete this request?
- A. DAST
- B. SCA
- C. IAST
- D. SAST
Answer: A
Explanation:
* Dynamic Application Security Testing (DAST):
* DAST tools interact with the running application from the outside, simulating attacks to identify security vulnerabilities.
* They are particularly effective in identifying issues like SQL injection, XSS, CSRF, and other vulnerabilities in web applications.
* DAST tools do not require access to the source code, making them suitable for black-box testing.
* Advantages of DAST:
* Real-World Testing: DAST simulates real-world attacks by interacting with the application in the same way a user would.
* Comprehensive Coverage: Can identify vulnerabilities in all parts of the web application, including input fields, forms, and user interactions.
* Automated Scanning: Automates the process of testing and identifying vulnerabilities, providing detailed reports on discovered issues.
* Examples of DAST Tools:
* OWASP ZAP (Zed Attack Proxy): An open-source DAST tool widely used for web application security testing.
* Burp Suite: A popular commercial DAST tool that provides comprehensive scanning and testing capabilities.
Pentest References:
* Web Application Testing: Understanding the importance of testing web applications for security vulnerabilities and the role of different testing methodologies.
* Security Testing Tools: Familiarity with various security testing tools and their applications in penetration testing.
* DAST vs. SAST: Knowing the difference between DAST (dynamic testing) and SAST (static testing) and when to use each method.
By using a DAST tool, the penetration tester can effectively identify all vulnerable input fields on the customer website, ensuring a thorough assessment of the application's security.
NEW QUESTION # 109
A penetration tester compromises a Windows OS endpoint that is joined to an Active Directory local environment. Which of the following tools should the tester use to manipulate authentication mechanisms to move laterally in the network?
- A. NTLMRelayX
- B. Rubeus
- C. Impacket
- D. WinPEAS
Answer: B
Explanation:
Rubeus is a post-exploitation tool used for Kerberos abuse, including ticket extraction, pass-the-ticket, ticket renewal, and Kerberoasting. It's ideal for lateral movement within Active Directory environments.
WinPEAS is mainly used for local privilege escalation and enumeration.
NTLMRelayX (from Impacket) is useful for relaying NTLM authentication but is not focused on Kerberos.
Impacket is a collection of tools; Rubeus is more targeted for Kerberos attacks.
Reference: PT0-003 Objective 4.2 - Tools and techniques for lateral movement and manipulating authentication in Windows AD environments.
NEW QUESTION # 110
A penetration tester writes the following script to enumerate a 1724 network:
1 #!/bin/bash
2 for i in {1..254}; do
3 ping -c1 192.168.1.$i
4 done
The tester executes the script, but it fails with the following error:
-bash: syntax error near unexpected token `ping'
Which of the following should the tester do to fix the error?
- A. Replace bash with tsh.
- B. Add do after line 2.
- C. Replace {1..254} with $(seq 1 254).
- D. Replace $i with ${i}.
Answer: B
Explanation:
The error in the script is due to a missing do keyword in the for loop.
Original Script:
1 #!/bin/bash
2 for i in {1..254}; do
3 ping -c1 192.168.1.$i
4 done
Error Explanation:
The for loop syntax in Bash requires the do keyword to indicate the start of the loop's body.
Corrected Script:
1 #!/bin/bash
2 for i in {1..254}; do
3 ping -c1 192.168.1.$i
4 done
Adding do after line 2 corrects the syntax error and allows the script to execute properly.
NEW QUESTION # 111
A penetration tester writes a Bash script to automate the execution of a ping command on a Class C network:
for var in --MISSING TEXT-- do
ping -c 1 192.168.10.$var
done
Which of the following pieces of code should the penetration tester use in place of -MISSING TEXT-?
- A. fl..254
- B. seq 1 254
- C. crunch 1 254 loop
- D. echo 1-254
Answer: B
Explanation:
The seq command generates a sequence of numbers, making it the best choice for iterating through IP addresses in a Class C subnet.
* Option A (crunch) #: Crunch generates wordlists, not IP ranges.
* Option B (seq 1 254) #: Correct. Generates the range 1-254 for a Class C subnet.
* Option C (echo 1-254) #: Outputs the string "1-254" instead of expanding it into numbers.
* Option D (fl..254) #: Incorrect syntax.
# Reference: CompTIA PenTest+ PT0-003 Official Guide - Bash Scripting for Automation
NEW QUESTION # 112
During a security assessment, a penetration tester uses a tool to capture plaintext log-in credentials on the communication between a user and an authentication system. The tester wants to use this information for further unauthorized access. Which of the following tools is the tester using?
- A. Metasploit
- B. Burp Suite
- C. Zed Attack Proxy
- D. Wireshark
Answer: D
Explanation:
Wireshark is a network packet analyzer used to capture and analyze network traffic in real-time. During a penetration test, it is often used to inspect unencrypted communication to extract sensitive information like plaintext login credentials. Here's how it works:
Packet Capturing:Wireshark captures the network packets transmitted over a network interface. If a user logs in through an insecure communication protocol (e.g., HTTP, FTP, or Telnet), the credentials are transmitted in plaintext.
Traffic Filtering:Using filters (e.g., http, tcp.port == 21), the tester narrows down the relevant traffic to locate the login request and response packets.
Sensitive Data Extraction:Analyzing the captured packets reveals plaintext credentials in the data payload, such as in HTTP POST requests.
Exploit the Information:After extracting the plaintext credentials, the tester can attempt unauthorized access to resources using these credentials.
CompTIA Pentest+ Reference:
Domain 1.0 (Planning and Scoping)
Domain 2.0 (Information Gathering and Vulnerability Identification)
Wireshark Usage Guide
NEW QUESTION # 113
auth=yYKGORbrpabgr842ajbvrpbptaui42342
When the tester logs in, the server sends only one Set-Cookie header, and the value is exactly the same as shown above. Which of the following vulnerabilities has the tester discovered?
- A. Session fixation
- B. JWT manipulation
- C. Collision attack
- D. Cookie poisoning
Answer: A
Explanation:
Comprehensive and Detailed Explanation:
Session fixation occurs when an application accepts a session identifier provided by the client (or set before authentication) and continues to use that same identifier after the user authenticates. In this scenario the server issues the same cookie value both before and after login, indicating the session ID is set pre-authentication and not rotated/renewed on successful authentication - a classic session fixation vulnerability. An attacker could force or coerce a victim to use a known session ID, then log in and hijack the authenticated session.
Why not the others:
* A. JWT manipulation: Would involve JSON Web Tokens (signed tokens with predictable structure); the cookie shown has no JWT structure.
* B. Cookie poisoning: Usually refers to unauthorized modification of cookie contents to change application behavior - not the primary issue here.
* D. Collision attack: Cryptographic collision attacks are not relevant to identical session cookies before
/after login.
CompTIA PT0-003 Mapping:
* Domain 3.0 Attacks and Exploits - web application session management vulnerabilities (session fixation, improper session handling).
NEW QUESTION # 114
A penetration tester gains access to the target network and observes a running SSH server.
Which of the following techniques should the tester use to obtain the version of SSH running on the target server?
- A. Banner grabbing
- B. Network sniffing
- C. DNS enumeration
- D. IP scanning
Answer: A
Explanation:
Banner grabbing is used to extract version information from services, including SSH, FTP, and web servers.
* Option A (Network sniffing) #: Captures packets, but does not directly reveal service versions.
* Option B (IP scanning) #: Identifies active hosts, but not SSH versions.
* Option C (Banner grabbing) #: Correct.
* Can be performed with:
nc <target> 22
or
telnet <target> 22
* Option D (DNS enumeration) #: Retrieves domain name records, not SSH versions.
# Reference: CompTIA PenTest+ PT0-003 Official Guide - Service Enumeration & Banner Grabbing
NEW QUESTION # 115
A penetration tester compromises a Windows OS endpoint that is joined to an Active Directory local environment. Which of the following tools should the tester use to manipulate authentication mechanisms to move laterally in the network?
- A. NTLMRelayX
- B. Rubeus
- C. Impacket
- D. WinPEAS
Answer: B
Explanation:
Rubeus is a post-exploitation tool used for Kerberos abuse, including ticket extraction, pass-the-ticket, ticket renewal, and Kerberoasting. It's ideal for lateral movement within Active Directory environments.
* WinPEAS is mainly used for local privilege escalation and enumeration.
* NTLMRelayX (from Impacket) is useful for relaying NTLM authentication but is not focused on Kerberos.
* Impacket is a collection of tools; Rubeus is more targeted for Kerberos attacks.
NEW QUESTION # 116
A penetration tester would like to leverage a CSRF vulnerability to gather sensitive details from an application's end users. Which of the following tools should the tester use for this task?
- A. Metasploit
- B. Maltego
- C. Browser Exploitation Framework
- D. theHarvester
Answer: C
Explanation:
Cross-Site Request Forgery (CSRF) vulnerabilities can be leveraged to trick authenticated users into performing unwanted actions on a web application. The right tool for this task would help in exploiting web- based vulnerabilities, particularly those related to web browsers and interactions.
* Browser Exploitation Framework (BeEF)
* Explanation: BeEF is a powerful tool specifically designed for exploiting web browser vulnerabilities. It can hook web browsers and perform a wide range of attacks, including CSRF.
* Capabilities: BeEF is equipped with modules to create CSRF attacks, capture session tokens, and gather sensitive information from the target user's browser session.
* References: BeEF is widely used in penetration testing for its extensive capabilities in exploiting web application vulnerabilities and manipulating browser sessions.
* Maltego (Option B):
* Explanation: Maltego is an open-source intelligence (OSINT) tool used for information gathering and visualizing relationships between data.
* Drawbacks: While useful for reconnaissance, Maltego is not designed for exploiting web vulnerabilities like CSRF.
* Metasploit (Option C):
* Explanation: Metasploit is a versatile exploitation framework that can be used for various types of penetration testing tasks, including web application exploitation.
* Capabilities: While Metasploit can exploit some web vulnerabilities, it is not specifically tailored for CSRF attacks as effectively as BeEF.
* References: Metasploit's strength lies in its comprehensive exploitation modules, but for specific browser-based attacks, BeEF is more focused and effective.
* theHarvester (Option D):
* Explanation: theHarvester is a tool for gathering open-source intelligence (OSINT) about a target, primarily used for reconnaissance.
* Drawbacks: It does not provide capabilities for exploiting CSRF vulnerabilities.
Conclusion: The Browser Exploitation Framework (BeEF) is the most suitable tool for leveraging a CSRF vulnerability to gather sensitive details from an application's end users. It is specifically designed for browser- based exploitation, making it the best choice for this task.
NEW QUESTION # 117
During a security assessment of an e-commerce website, a penetration tester wants to exploit a vulnerability in the web server's input validation that will allow unauthorized transactions on behalf of the user. Which of the following techniques would most likely be used for that purpose?
- A. Cross-site scripting
- B. Session hijacking
- C. DOM injection
- D. Privilege escalation
Answer: A
Explanation:
Comprehensive and Detailed Explanation:
Cross-site scripting (XSS) is a client-side attack where an attacker injects malicious scripts into a web page viewed by other users. When executed in a browser, it can steal session cookies, perform unauthorized transactions, or execute malicious actions on behalf of the victim.
Option D (Cross-site scripting) is correct because XSS can manipulate client-side input validation to execute unauthorized transactions.
Option A (Privilege escalation) is incorrect because it involves gaining higher privileges on a system, not attacking input validation in a web application.
Option B (DOM injection) is incorrect because DOM-based attacks manipulate browser-side JavaScript but are not necessarily used for unauthorized transactions.
Option C (Session hijacking) is incorrect because session hijacking requires capturing a valid user session, whereas XSS can steal session tokens for this purpose.
Reference: CompTIA PenTest+ PT0-003 Official Guide - Chapter 6 (Web Application Attacks).
NEW QUESTION # 118
A penetration tester must identify vulnerabilities within an ICS (Industrial Control System) that is not connected to the internet or enterprise network. Which of the following should the tester utilize to conduct the testing?
- A. Manual assessment
- B. Source code analysis
- C. Channel scanning
- D. Stealth scans
Answer: A
Explanation:
Since the ICS is air-gapped (not connected to external networks), the best approach is manual assessment, which involves on-site testing, physical access, and reviewing configurations to identify vulnerabilities.
Option A (Channel scanning) ❌: This is used for wireless networks, not for isolated ICS systems.
Option B (Stealth scans) ❌: A stealth scan is a method to avoid detection while scanning, but it still requires network connectivity.
Option C (Source code analysis) ❌: If the ICS is a proprietary system, source code might not be available. Also, vulnerabilities could exist outside the code, such as misconfigurations.
Option D (Manual assessment) ✅: Correct. The ICS is offline, so a manual review of system settings, firmware, and configurations is the best approach.Reference: CompTIA PenTest+ PT0-003 Official Guide - ICS & SCADA Testing
NEW QUESTION # 119
During a web application assessment, a penetration tester identifies an input field that allows JavaScript injection. The tester inserts a line of JavaScript that results in a prompt, presenting a text box when browsing to the page going forward. Which of the following types of attacks is this an example of?
- A. SQL injection
- B. Server-side template injection
- C. SSRF
- D. XSS
Answer: D
Explanation:
Cross-Site Scripting (XSS) is an attack that involves injecting malicious scripts into web pages viewed by other users. Here's why option C is correct:
XSS (Cross-Site Scripting): This attack involves injecting JavaScript into a web application, which is then executed by the user's browser. The scenario describes injecting a JavaScript prompt, which is a typical XSS payload.
SQL Injection: This involves injecting SQL commands to manipulate the database and does not relate to JavaScript injection.
SSRF (Server-Side Request Forgery): This attack tricks the server into making requests to unintended locations, which is not related to client-side JavaScript execution.
Server-Side Template Injection: This involves injecting code into server-side templates, not JavaScript that executes in the user's browser.
Reference from Pentest:
Horizontall HTB: Demonstrates identifying and exploiting XSS vulnerabilities in web applications.
Luke HTB: Highlights the process of testing for XSS by injecting scripts and observing their execution in the browser.
NEW QUESTION # 120
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