Authorized Internal Network Assessment Only
Network Asset Discovery, Port Exposure & Vulnerability Report Generator
Upload authorized internal scan results and turn them into a clean asset inventory, open port summary, conservative vulnerability review, risk score, and remediation roadmap.
Created by Ali Hassani, CISO – 25+ years of IT, cybersecurity, compliance, and infrastructure experience in Orange County and Southern California.
Asset Inventory
Identify servers, workstations, printers, network devices, databases, and unknown systems from authorized scan data.
Port Exposure
Highlight management ports, database services, legacy protocols, remote access, and internal attack paths that need validation.
Executive Report
Create a printable report with charts, findings, CVE links when evidence exists, and a practical remediation roadmap.
Prepared by OC Security Audit
Ali Hassani is a CISO and cybersecurity consultant with 25+ years of experience across network security, compliance auditing, Microsoft infrastructure, firewall security, vulnerability management, cloud security, healthcare IT, MSP services, and IT operations.
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Important Disclaimer
This tool is for initial guidance only and does not replace a professional cybersecurity audit, compliance assessment, penetration test, vulnerability assessment, or legal/compliance review.
The website version analyzes uploaded data in your browser. It does not scan public IP addresses from the website server, perform exploit testing, guess passwords, brute force credentials, evade detection, run stealth scans, or automatically exploit vulnerabilities.
How To Create Scan Data With Nmap
Nmap is the original Nmap Security Scanner from the official Nmap project. Download it only from the official Nmap website, then run it on networks you own or are authorized to assess.
Authorized use only: Do not scan public IP addresses, client networks, vendor networks, or third-party systems unless you have written permission. This page analyzes uploaded results; it does not run public scans from the OC Security Audit website.
Official Download
The official download page provides current installers for Windows, macOS, Linux RPM packages, and source code. On Windows, the official installer includes Nmap dependencies and the Zenmap GUI.
Use only the official Nmap project download page. Avoid third-party download mirrors unless your organization has approved them.
Download Nmap
Go to the official Nmap download page: Download Nmap from the Official Website. Choose the Windows, macOS, or Linux installer for your computer.
Install And Open Command Prompt
Run the installer. When it finishes, open Command Prompt, PowerShell, Terminal, or your approved security workstation.
Run The Authorized Scan
Copy the command below. Replace 192.168.1.0/24 with your approved internal network range before you run it.
nmap -sS -sV -O -A --version-all --osscan-guess --script=default,safe,vuln -p- --open --reason -T3 -oA authorized-internal-fullscan 192.168.1.0/24
Time note: This Nmap scan may take about 15 minutes to a few hours depending on how many IP addresses or devices you choose to scan, how many are online, and how many services respond.
Run this only on networks you own or are specifically authorized to assess. The command creates a file named authorized-internal-fullscan.xml.
Upload And Generate Report
Come back to this page. Upload authorized-internal-fullscan.xml, check the authorization box, and click Generate Report.
Upload Authorized Scan Results
Supported input: Nmap XML, Nmap grepable output, CSV, or JSON. Use only scan data from networks you own or are authorized to assess.
All parsing is local in this browser. Scan data and generated report output are not intentionally sent to OC Security Audit by this page and are cleared from the browser view after 5 minutes.
Tool ready. Upload an authorized scan file, confirm authorization, then click Generate Report.
Technical Background For Network Asset Discovery
This tool is designed to help authorized IT teams convert Nmap scan output into a readable business and technical report. It helps explain what was discovered, which IP addresses responded, which ports were open, what services appear to be exposed, and which items deserve follow-up validation by an authorized cybersecurity or network team.
1What Nmap Is
Nmap, short for Network Mapper, is a widely used network discovery and security auditing tool. Network engineers, security analysts, and system administrators use it to identify live hosts, open ports, running services, service versions, and sometimes operating system or device type clues.
- It can check whether hosts are online and reachable.
- It can identify open TCP ports and common service names.
- It can attempt service version detection and OS fingerprinting.
- It can run selected Nmap Scripting Engine checks when authorized.
2What This Report Is For
The generated report is a first-pass internal network visibility report. It is meant to organize scan evidence into asset inventory, port exposure, risk indicators, immediate validation items, and a remediation discussion list for IT leadership.
- Use it to prepare for internal reviews, audits, cyber insurance questions, and vulnerability management planning.
- Use it to help confirm whether known devices, servers, printers, network gear, and management interfaces are expected.
- Use it as a conversation starter for firewall cleanup, segmentation, patching, hardening, and monitoring.
3What Asset Discovery Means
Asset discovery is the process of identifying what is actually connected to the network. This includes managed systems, forgotten systems, lab devices, printers, cameras, switches, virtual machines, old servers, and devices that are not always represented correctly in inventory records.
- Discovered assets should be compared against CMDB, help desk, EDR, MDM, firewall, DHCP, DNS, and switch records.
- Unknown assets should be assigned an owner, location, business purpose, and security responsibility.
- High-value systems should be reviewed for segmentation, authentication, patching, backup, and logging.
4What Open Ports Mean
An open port means a device is accepting network connections for a service. Open ports are normal when they support business operations, but unnecessary or poorly controlled services can increase attack paths, ransomware movement, data exposure, and compliance risk.
- Management ports such as RDP, SSH, WinRM, SMB, SNMP, web admin, and database ports should be reviewed carefully.
- Open ports should be tied to a business need, system owner, firewall rule, and monitoring plan.
- Findings should be validated before closing services or changing firewall rules because production systems may depend on them.
Why Network Engineers And Administrators Should Run Authorized Scans
A network scan is not only a security task. It is also an operations visibility task. Network administrators need to know what is reachable before a firewall change, migration, audit, segmentation project, ransomware response, or cyber insurance review forces the question under pressure.
Find Unknown Systems
Discover devices that may not be in asset inventory, endpoint tools, DHCP records, or documentation.
Validate Exposure
Confirm which services are reachable from the scan location and whether they match the intended network design.
Prioritize Cleanup
Identify remote access, legacy protocols, database ports, admin interfaces, and high-risk services that need review.
Support Change Control
Create evidence for segmentation, firewall rule cleanup, patching, service removal, or monitoring improvements.
Operational caution: Scans should be scheduled, approved, and communicated. Some fragile devices, older systems, medical equipment, industrial systems, or unsupported applications may react poorly to aggressive scanning. Use approved maintenance windows and involve the responsible network, security, and application owners.
How The Report Helps CISOs, IT Managers, And Technical Teams
Different leaders need different views of the same evidence. This report turns technical scan data into practical views that can support executive risk discussions, IT operations planning, and hands-on remediation work.
CISO / Security Leader
Risk Visibility
Helps identify unmanaged assets, exposed services, vulnerable indicators, and internal attack paths that may affect audit readiness, ransomware risk, cyber insurance, compliance, and security roadmap planning.
IT Manager / CIO
Prioritized Work
Organizes findings into business-friendly priorities so teams can discuss ownership, budget, scheduling, change control, downtime risk, and whether remediation should be handled internally or with outside support.
Network / System Admin
Technical Evidence
Provides device, IP, port, service, version, and evidence details that engineers can compare against firewall rules, VLANs, DNS/DHCP, endpoint tools, server roles, monitoring, and configuration baselines.
What The Full Nmap Scan Can Collect
When the uploaded XML includes data from the advanced command, the report generator attempts to organize the information into a professional OC Security Audit self-assessment report credited to OC Security Audit and Ali Hassani, CISO. The report output depends on what Nmap can actually detect from your network and what each host allows Nmap to see.
Asset And Host Details
IP address, hostname, MAC address, vendor/manufacturer, host state, device type estimate, OS guess, and missing inventory data that should be confirmed.
Open Port Exposure
All open TCP ports found by `-p- –open`, service names, product/version banners from `-sV –version-all`, and reason data when provided by Nmap.
Vulnerability Indicators
NSE script output from `default,safe,vuln`, CVE identifiers found in script or banner evidence, MITRE/NVD links, confidence notes, and items that need validation.
Graphical Report Output
Executive summary cards, risk score, asset type distribution, top open ports, high-risk service bars, vulnerability findings, immediate actions, and remediation roadmap.
Important: This report predicts and summarizes exposure based on uploaded Nmap data. It does not prove every vulnerability, confirm exploitability, or replace authenticated vulnerability scanning, firewall review, endpoint review, patch validation, configuration review, or a professional cybersecurity audit.
Sample Report Preview
These hypothetical sample screenshots show the type of executive report output the tool creates after an authorized Nmap XML, CSV, or JSON file is uploaded. The sample names, assets, addresses, and findings are fictional demonstration data.
Why This Matters
Network asset discovery helps IT managers understand what is actually connected before attackers, ransomware, auditors, or cyber insurance questionnaires expose the gaps. Open ports matter because every unnecessary service increases the paths available for lateral movement, credential abuse, data exposure, and service disruption.
CVEs and service versions must be verified carefully. This tool maps evidence conservatively and avoids claiming confirmed vulnerabilities when the uploaded data does not prove the product/version is affected.
Know the assetsSee which servers, endpoints, printers, and network devices appear in the scan.
Prioritize exposureFocus attention on remote access, SMB, databases, management ports, and unknown systems.
Validate before changeUse the report as a starting point for review, not as automatic approval to change production systems.
Related OC Security Audit Services
Internal Security Audit
Network Vulnerability Assessment
Firewall Security Audit
Vulnerability Management
Virtual CISO
Cyber Insurance Readiness
Implementation Support
When audit findings become practical IT work, IT Perfection can help with managed IT, co-managed IT, Microsoft 365/Azure support, endpoint management, backup, server support, help desk, monitoring, and network infrastructure projects.
Need Help Validating This Report?
Ask OC Security Audit to review your internal scan results, firewall rules, Microsoft 365, Active Directory, server security, vulnerability management process, and cyber insurance evidence requirements.