Cybersecurity Lab
Nessus Vulnerability Assessment
A vulnerability assessment workflow using Nessus and Nmap to identify, prioritize, and document weaknesses in a Metasploitable2 lab target.
Completed2026Beginner
Objective
Practice turning scanner output into a readable vulnerability assessment with risk, evidence, and remediation language.
Tools Used
Nessus EssentialsKali LinuxMetasploitable2
Steps Performed
- Configured a Basic Network Scan in Nessus Essentials for the Metasploitable2 target at 192.168.128.2.
- Ran Nmap service detection against the same target to document exposed services.
- Reviewed Nessus host and vulnerability summaries after scan completion.
- Separated informational output from actionable critical, high, medium, and low findings.
- Wrote a CVE summary for CVE-2014-3566 POODLE based on scan evidence.
Key Findings
- Nmap identified 23 open TCP services, including FTP, SSH, Telnet, SMTP, DNS, HTTP, SMB, NFS, MySQL, PostgreSQL, VNC, IRC, Tomcat, and a bind shell on port 1524.
- Nessus reported a completed scan with multiple critical, high, medium, low, and informational findings.
- The host summary showed a single target with failed authentication and many informational findings.
- CVE-2014-3566 POODLE was documented as a critical SSL 3.0 weakness with remediation guidance to disable SSL 2.0 and SSL 3.0 and use TLS 1.2 or higher.
Screenshots
Evidence Files
Lessons Learned
- Scanner findings are a starting point for analysis and need validation against service evidence.
- Combining Nmap output with Nessus findings makes the final report easier to explain.
- Clear remediation guidance is as important as identifying the issue.
Future Improvements
- Create before-and-after remediation tracking.
- Add screenshots directly into the written lab report.
- Export findings into a reusable report format.
References
- Tenable Nessus documentation
- Nmap Reference Guide
- CVSS documentation





