PT0-002 Practice Test 3 — 10 Questions

Question 1

A client wants to test a web application that uses a third-party payment gateway. The client explicitly wants the payment gateway to be excluded from the test to avoid service disruption. Where should this exclusion be formally documented?

Accepted Answer

Rules of Engagement (ROE). The Rules of Engagement (ROE) document is the correct place to formally exclude the third-party payment gateway from testing. The ROE defines the scope, boundaries, and constraints of the penetration test, including specific systems or services that must not be targeted. This ensures the client's requirement to avoid service disruption to the payment gateway is legally and operationally enforced.

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Non-Disclosure Agreement (NDA)

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Statement of Work (SOW)

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Penetration Test Plan

Question 2

A penetration tester has completed an internal network test. The client's IT manager requests a document that lists each vulnerability with its CVSS score, risk rating, and a brief description of the impact. Which section of the final report should contain this information?

Accepted Answer

Technical Findings. The Technical Findings section is the correct location because it provides a detailed, itemized list of each discovered vulnerability, including its CVSS score, risk rating, and impact description. This section is intended for technical stakeholders who need granular data to prioritize remediation, unlike the Executive Summary which offers high-level business impact and risk overviews.

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Executive Summary

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Methodology

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Remediation Summary

Question 3

A penetration tester has identified a critical misconfiguration in a cloud storage bucket that exposes sensitive customer data. The client's technical team has already applied a fix, but the tester wants to ensure the report accurately reflects the risk and the remediation. Which section of the report should include the steps to reproduce the vulnerability?

Accepted Answer

Technical details and proof of concept. The technical details and proof of concept (POC) section is the correct place to include step-by-step reproduction steps because it provides the client's technical team with the exact commands, API calls, or configuration checks needed to verify the vulnerability and the fix. This section is distinct from the executive summary (which targets non-technical stakeholders) and the findings and risk rating (which focuses on impact and severity). By including reproduction steps here, the tester ensures the remediation can be validated without ambiguity.

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Executive summary

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Findings and risk rating

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Remediation recommendations

Question 4

A client wants to conduct a penetration test of their web application, but they are concerned about potential service disruption. They request that the tester avoid using any techniques that could cause the application to crash or become unresponsive. Which of the following should the tester include in the rules of engagement to address this requirement?

Accepted Answer

Include a clause that prohibits denial-of-service attacks and rate-limits all automated tools.. Option B is correct because it directly addresses the client's concern by prohibiting denial-of-service attacks and implementing rate-limiting on automated tools. Rate-limiting prevents overwhelming the web application with requests, which could cause resource exhaustion or unresponsiveness, while the prohibition on DoS ensures no intentional disruption occurs. This aligns with the rules of engagement (RoE) requirement to scope the test safely.

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Specify that the tester will only use ACK scans and never send data payloads.

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State that the tester will not use any automated tools and will perform only manual testing.

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Do not include any specific limitation; the tester assumes responsibility for any outages.

Question 5

A penetration tester wants to perform DNS brute-force enumeration to discover subdomains of a target domain. Which tool is specifically designed for this purpose?

Accepted Answer

dnsrecon. B is correct because dnsrecon is a specialized DNS enumeration tool that includes a brute-force mode for discovering subdomains. It uses a wordlist to query DNS servers for common subdomain names, leveraging the DNS protocol's inherent structure to map out a target's domain hierarchy without relying on zone transfers.

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nmap

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Wireshark

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Hydra

Question 6

A client is subject to PCI DSS compliance and requests a penetration test. The client's network has a mix of in-scope systems (cardholder data environment) and out-of-scope systems. During scoping, the tester recommends a specific approach to ensure accurate segmentation testing. Which of the following is the most important consideration for the rules of engagement?

Accepted Answer

The tester must be provided with a diagram of the network segmentation. For accurate segmentation testing under PCI DSS, the tester must verify that the segmentation controls (e.g., firewalls, VLANs, ACLs) effectively isolate the cardholder data environment (CDE) from out-of-scope systems. A network diagram is essential because it documents the expected segmentation boundaries, IP ranges, and traffic flows, allowing the tester to design targeted tests (e.g., using traceroute, nm scans, or firewall rule validation) to confirm that no unauthorized paths exist between segments. Without this diagram, the tester cannot determine which systems should be reachable and which should be blocked, making segmentation validation unreliable.

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The tester must have network access to both in-scope and out-of-scope systems

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The tester must agree not to scan any out-of-scope IP addresses

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The tester must obtain written authorization from the client's security team

Question 7

A penetration tester discovers that a web application uses a vulnerable Java deserialization endpoint. The classpath includes the Apache Commons Collections library. Which attack technique is most likely to achieve remote code execution?

Accepted Answer

Java deserialization of untrusted data (RCE via Commons Collections).. The correct answer is A because the presence of the Apache Commons Collections library in the classpath, combined with a vulnerable Java deserialization endpoint, enables the classic 'gadget chain' attack. Attackers craft a malicious serialized object that, when deserialized, invokes methods in Commons Collections (e.g., InvokerTransformer) to execute arbitrary system commands, achieving remote code execution (RCE). This is a well-documented exploit chain (e.g., CVE-2015-7501) that directly leverages the library's reflection-based classes.

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SQL injection.

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Cross-site scripting.

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Command injection.

Question 8

A penetration tester has compromised a Linux server and gained a low-privilege shell. The tester discovers that the /etc/shadow file is readable by the tester's user. Which attack is most directly enabled by this finding?

Accepted Answer

Password cracking offline. The /etc/shadow file contains the hashed passwords for all users on the system. If a low-privilege user can read this file, they can copy the password hashes and attempt to crack them offline using tools like John the Ripper or Hashcat. This directly enables an offline password cracking attack, as the tester can brute-force or use dictionary attacks against the hashes without needing to interact with the live system.

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Pass-the-hash

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LLMNR poisoning

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Kerberoasting

Question 9

A penetration tester discovers a web application that uses client-side JavaScript to validate user input before form submission. The input is then sent to the server and used directly in a SQL query without server-side validation. Which attack would most effectively exploit this vulnerability?

Accepted Answer

SQL injection. The correct answer is A because the vulnerability described—client-side JavaScript validation with no server-side sanitization, followed by direct use of input in a SQL query—is the classic precondition for SQL injection. An attacker can bypass client-side controls (e.g., by disabling JavaScript or using a proxy like Burp Suite) and submit crafted SQL syntax (e.g., `' OR 1=1 --`) to manipulate the query, extract data, or execute arbitrary SQL commands on the database server.

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Cross-site scripting (XSS)

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Command injection

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Parameter pollution

Question 10

A penetration tester has discovered a local file inclusion (LFI) vulnerability in a PHP web application. The vulnerable code uses the following pattern: include($_GET['page']);. The application runs on a Linux server with Apache and PHP. The tester wants to achieve remote code execution (RCE). Which technique is most likely to succeed given this LFI?

Accepted Answer

Use the php://input wrapper and send PHP code in the POST body.. The correct technique is to use the php://input wrapper because it allows the attacker to pass arbitrary PHP code in the HTTP POST body, which the include() function will execute as PHP. Since the vulnerable code directly includes user input without sanitization, the php://input stream reads the raw POST data and processes it as a PHP script, achieving remote code execution.

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Use the file:// wrapper to read sensitive files like /etc/passwd.

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Use the data:// wrapper with a base64-encoded PHP payload.

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Set allow_url_include to On in php.ini via the LFI.