CompTIA PenTest+ Certification Exam

Before performing a penetration test, it is critical to ensure the client has signed the Statement of Work (SOW). The SOW outlines the scope, objectives, and parameters of the test, and having it signed ensures that both parties are in agreement and legal protections are in place. This prevents any misunderstandings and provides a clear framework for the test, making it the most important action to take before starting the assessment.

Performing a penetration test against an environment with SCADA devices introduces additional safety risks because these devices control critical infrastructure that can cause physical effects in the real world. Manipulating or disrupting the operations of SCADA devices can lead to significant and potentially dangerous outcomes such as flooding, gas leaks, or power outages. Thus, the primary safety risk is associated with the direct physical impact that these devices can have if they are not handled properly during testing.

A Statement of Work (SOW) is a document that outlines the specific activities, deliverables, and schedules for a penetration tester or any other service provider. It provides a detailed description of the scope of work to be performed, including the objectives, tasks, timelines, resources, and any other relevant details. The SOW serves as a contractual agreement between the client and the service provider, ensuring that both parties have a clear understanding of the expectations and responsibilities associated with the engagement.

When a penetration-testing team finds that supervisory systems and PLCs (Programmable Logic Controllers) are connected to the company intranet, the most valid assumption is that controllers will not validate the origin of commands. PLCs are typically designed for operational efficiency rather than security, and they might not have inherent mechanisms to verify whether command origins are legitimate. This lack of validation means that if a network is compromised, malicious commands could potentially be injected and executed by the PLCs.

To ensure the assessment could proceed as planned and any unexpected issues could be addressed promptly, the security company should have acquired the proper emergency contacts for the client. Emergency contacts would allow the assessment team to quickly address any access issues or other obstacles encountered, especially given the tight timeframe and weekend testing window.