Penetration Testing Checklist: What to Cover Before, During, and After a Pentest

TL;DR
A penetration testing checklist is a step-by-step guide used to plan, execute, and document every phase of a pentest. It helps ensure that nothing important is missed, from pre-engagement scoping to post-test remediation. Whether you’re preparing for an internal security assessment or hiring a vendor, this checklist makes your testing process more effective, auditable, and repeatable.

Why You Need a Penetration Testing Checklist

Planning a penetration test involves more than picking a date and scanning a network. Without a clear checklist, you risk missing key steps that could affect the test’s value, delay remediation, or cause problems during a compliance review.

A penetration testing checklist gives your team a structured path to follow. It sets expectations, prevents scope creep, and ensures that technical and non-technical stakeholders stay aligned. Whether you’re managing the test internally or working with an external provider, this checklist helps you stay organized, focused, and audit-ready.

What Is a Penetration Testing Checklist?

A penetration testing checklist is a structured list of tasks that need to be completed before, during, and after a pentest. It serves as a framework to keep the engagement on track and ensures that both security and business objectives are met.

The checklist helps:

• Define clear scope and boundaries
• Set timelines and communication protocols
• Confirm authorization and legal readiness
• Guide technical testing activities
• Ensure thorough documentation and follow-up

Think of it as both a planning tool and a quality assurance step. It does not replace the technical expertise of the tester, but it helps organize the process so nothing falls through the cracks.

Who Should Use a Pentest Checklist and Why?

A penetration testing checklist isn’t just for the person running the scans. It serves multiple roles across technical, compliance, and leadership teams. Everyone involved in the planning, execution, or review of a test benefits from a shared checklist.

Here’s how different roles use it:

Security engineers and red teamers

They use it to plan and execute the test. The checklist helps ensure they’ve defined targets, understood scope, validated tools, and are capturing the right data during exploitation.

CISOs and security managers

They use the checklist to track status, ensure proper documentation, and confirm that the test aligns with business risks and audit requirements. It gives visibility and helps avoid surprises later.

Compliance teams

The checklist supports evidence collection for audits like SOC 2, PCI DSS, ISO 27001, and HIPAA. It helps ensure testing happened on time, was scoped correctly, and results were reviewed and acted upon.

DevOps or product owners

They may not perform the test, but they rely on the checklist to know when systems may be impacted, who is authorized to run tests, and what to expect after the report is delivered.

External vendors or security partners

If you’re hiring a third-party pentester, using a checklist helps keep them aligned with your internal goals. It also gives your team a way to verify that you’re getting more than just a scan and a PDF.

✅ A shared checklist improves communication between security teams, leadership, and auditors, and helps everyone work from the same playbook.

Pre-Engagement Checklist: What to Do Before a Pentest Starts

Before anyone runs a scan, sends a payload, or even opens Burp Suite, there’s critical prep work that must happen. The pre-engagement phase sets the tone and boundaries for the entire assessment. A strong checklist here ensures that expectations are clear, scope is locked, and nothing breaks production unintentionally.

Here’s what should be covered:

1. Define the scope and testing objectives

Identify exactly what will be tested. Are you focusing on external infrastructure, web apps, APIs, internal systems, or cloud services? Define targets by name, IP, or domain. Also clarify what you want out of the test such as finding technical vulnerabilities, meeting compliance, or simulating real attacker behavior.

2. Identify systems out of scope

Just as important as what’s in scope is what’s off-limits. List systems or applications that cannot be touched due to sensitivity, operational risk, or third-party ownership. This helps reduce downtime and legal exposure.

3. Gather documentation

Provide architecture diagrams, user roles, DNS mappings, cloud inventories, application credentials (if white-box), and any policies relevant to the test. The more the tester understands up front, the more time they can spend attacking, not guessing.

4. Finalize testing rules of engagement

Agree on:

• When testing will happen
• What hours testing is allowed
• Whether social engineering or phishing is in scope
• What to do in case of service interruption
• What notifications (if any) should go to the SOC or IT team

5. Ensure legal authorization

Get formal written approval to test. This usually includes:

• Non-disclosure agreement (NDA)
• Rules of engagement (ROE)
• Signed testing authorization letter

These documents protect everyone legally and clarify mutual responsibilities.

6. Identify communication points of contact

Name the primary technical and business contacts. Define how you’ll communicate progress, coordinate findings, or escalate incidents during testing.

7. Lock in testing windows and access

Reserve time in the environment if needed. Make sure test accounts, VPN credentials, and other access paths are provisioned before day one.

⚠️ Skipping prep is the fastest way to waste a pentest budget. A two-hour pre-engagement checklist can prevent two weeks of misfires and miscommunication.

Active Testing Checklist: What Should Be Tested?

Once the engagement starts, your team or your vendor needs to focus on the right areas. A checklist helps ensure that testing is both thorough and aligned with your risk profile. Skipping even one major category can leave gaps in your security coverage or cause you to fail an audit later.

Here are the major components you should include in your active testing phase:

1. External infrastructure

Test all internet-facing assets. This includes your public IP ranges, firewalls, VPN gateways, load balancers, email servers, and DNS. Look for exposed services, outdated software, misconfigurations, and weak authentication mechanisms.

2. Web applications and APIs

Assess your web apps and APIs for injection flaws, broken authentication, insecure session handling, improper access controls, and logic bugs. Use tools like Burp Suite but also perform manual validation. Pay close attention to endpoints that handle sensitive data or administrative functions.

3. Internal network and domain

If the test includes internal access, evaluate systems like file shares, domain controllers, internal web apps, and endpoint protections. Look for credential reuse, lateral movement paths, and opportunities for privilege escalation.

4. Active Directory and identity systems

Test your identity infrastructure. This includes domain trust relationships, group policy configurations, password policies, Kerberos vulnerabilities, and domain administrator paths. Many modern attacks succeed by chaining small identity issues together.

5. Cloud platforms

If you use AWS, Azure, or GCP, your checklist should include cloud identity, storage permissions, exposed APIs, overly permissive IAM roles, and misconfigured services. Review logs, key management, and access control.

6. Wireless networks

For on-site engagements, test Wi-Fi segmentation, rogue access point detection, and the strength of encryption and authentication mechanisms. Identify whether attackers could pivot from guest networks into your internal systems.

7. Social engineering (if approved)

If your rules of engagement allow it, include phishing simulations, pretext phone calls, or physical tailgating scenarios. Social engineering often bypasses even the best technical defenses.

8. Physical security (if in scope)

If the test includes physical aspects, evaluate badge systems, camera coverage, server room access, and the availability of unattended workstations. Physical breaches often create opportunities for credential theft and backdoor installation.

What Should Be Collected During the Test?

During a penetration test, your team must document everything that proves how vulnerabilities were found, exploited, and what impact those actions had. This data not only supports the final report, but also helps with remediation, audit defense, and lessons learned.

Here’s what your checklist should include during active exploitation and discovery:

1. Screenshots of successful exploits

Always capture visual proof of exploitation. This could include access to restricted areas, compromised credentials, shell access, or lateral movement. Screenshots provide undeniable evidence and are useful for explaining technical findings to non-technical stakeholders.

2. Packet captures or network logs

If you intercept traffic or manipulate network behavior, capture that data using tools like Wireshark or tcpdump. These logs help validate findings like session hijacking, data leakage, or unencrypted communication.

3. Exploit payloads and commands

Log every command used to exploit a system, escalate privileges, or exfiltrate data. Include custom scripts, Metasploit modules, or manual steps. This ensures reproducibility and helps the remediation team understand how the issue occurred.

4. Credentials or tokens discovered

Record any passwords, hashes, API keys, or access tokens uncovered during testing. If you crack hashes or bypass authentication, document how you gained that access. Clearly mark this information as sensitive and protect it appropriately.

5. Lateral movement paths

Map out any privilege escalation or lateral movement that occurred. Describe how access to one system allowed access to another. This helps teams visualize how attackers could pivot and compromise more of the environment.

6. Persistence or post-exploitation actions

If allowed by the rules of engagement, include any persistence mechanisms set up. Examples might include scheduled tasks, registry keys, startup scripts, or implanted credentials. Always flag these for cleanup at the end of testing.

Reporting Checklist: What Belongs in a Penetration Test Report?

A strong penetration test report does more than list vulnerabilities. It connects the technical findings to business risk, explains how the test was conducted, and helps your team understand what to fix and why. You should treat the report as a lasting piece of security documentation, not just a formality.

Here’s what your reporting checklist should include:

1. Executive summary

Summarize the test objectives, overall security posture, number of issues found, and high-level business impact. This section helps non-technical stakeholders understand the outcome quickly and clearly.

2. Scope and methodology

Define what systems were tested and how the test was conducted. This includes:

• IP ranges, applications, and environments in scope
• Testing techniques used (manual and automated)
• Tools and frameworks used (e.g., OWASP, NIST, PTES)

This section demonstrates that the test followed a repeatable and credible process.

3. Detailed findings with severity ratings

Each vulnerability should include:

• A clear title and technical description
• Affected system or asset
• Steps to reproduce or exploit
• Business impact
• Severity rating (Critical, High, Medium, Low)
• Screenshots or logs for validation

Write findings clearly so developers, engineers, and auditors can all follow the explanation without confusion.

4. Proof of concept (where applicable)

Include sanitized code samples or payloads used during testing. Proof of concept helps teams reproduce the issue during remediation and gives evidence that the exploit is not just theoretical.

5. Remediation guidance

Provide direct, actionable advice. Instead of saying “use stronger authentication,” say “require MFA for all administrative logins and remove password-based access from the public internet.” Be specific.

6. Retesting plan

Outline how and when the organization should retest critical or high-risk findings after fixes are applied. If your test includes a scheduled retest, include expectations and timelines for that phase.

7. Appendix with raw data or tools used

Include any additional evidence, tool outputs, or technical references that support the findings. This section helps security teams validate the results and trace the testing path if needed.

Remediation and Post-Test Checklist

The value of a penetration test doesn’t come from finding problems. It comes from fixing them. Once testing is complete and the report is delivered, your team needs to take action. A structured post-test checklist ensures nothing gets missed and that the risk identified during the engagement is actually reduced.

Here’s what your checklist should include after the test wraps up:

1. Triage and prioritize the findings

Review the report with your internal team or vendor. Focus on critical and high-risk issues first. Assign each finding a responsible team and expected resolution date. Make sure leadership is aware of any issues that carry legal, compliance, or reputational risk.

2. Document your remediation plan

Track what will be fixed, by whom, and on what timeline. Include this in your internal ticketing system or GRC platform. If you’re preparing for an audit, store this with your testing documentation as evidence of risk treatment.

3. Begin remediation work immediately

Apply patches, reconfigure access controls, segment networks, fix logic flaws, harden APIs, or whatever the fix requires. Move fast on critical items, especially those involving public exposure or privilege escalation.

4. Validate fixes internally

Before retesting officially, confirm that your internal team has successfully applied each fix. Run internal checks, review logs, and test access controls to catch anything incomplete.

5. Schedule retesting for critical and high-risk issues

If the original test included a retest, provide the same environment and configurations. A good provider will verify the fixes and update the report with validation notes. If retesting is not included, schedule it anyway. Without it, your risk remains unverified.

6. Update internal documentation and policies

If testing revealed gaps in your procedures, update your documentation. This could include:

• Network diagrams
• User provisioning policies
• Secure development guidelines
• Change control workflows

This step helps reduce repeat issues in future assessments.

7. Debrief with your team and your vendor

Hold a post-engagement call to review lessons learned. Ask what went well, what should change next time, and how to improve your testing readiness. This keeps the checklist dynamic and effective over time.

✅ A penetration test that doesn’t lead to change is just a report. Remediation is where the real security improvement happens.

Ready to Use a Real Checklist?

A penetration test should never feel like a black box. Whether you’re planning your first engagement or managing a mature testing program, using a clear, structured checklist makes every phase more effective.

At Artifice Security, we provide our clients with detailed, audit-aligned checklists that cover everything from scoping and testing to remediation and retesting. We guide teams through each stage so nothing gets missed and every test delivers value you can act on.

We work with organizations across SaaS, finance, healthcare, and critical infrastructure to deliver real security insights — not just a vulnerability list.

✅ Clear scope and planning
✅ Expert-driven testing across web, cloud, internal, and API
✅ Detailed reports with remediation guidance and retesting support

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FAQ

About the Author

Jason Zaffuto is the founder of Artifice Security, a penetration testing firm trusted by clients in SaaS, finance, healthcare, and government. With over 25 years of hands-on experience in cybersecurity and offensive testing, Jason has led hundreds of assessments across cloud environments, internal networks, web applications, and embedded systems.

He holds advanced certifications including OSCP, OSWE, OSCE, and CPSA, and has helped organizations build mature, repeatable testing programs that align with compliance frameworks like SOC 2, PCI DSS, ISO 27001, and HIPAA.

Jason built Artifice Security to help companies move beyond checkbox security. His mission is to deliver real testing that exposes real risk with reports and guidance that development, engineering, and compliance teams can actually use.