Metasploit is a penetration-testing platform used to assess systems with permission. Its open-source Framework provides a command-line environment called msfconsole for finding and running modular security tools; Metasploit Pro is a commercial version with a web interface and additional workflow features. To get started, choose a module that fits an authorized test, inspect its documentation and options, configure only an in-scope target, and run it only after checking its likely effects.
What is Metasploit?
Metasploit is a platform for authorized penetration testing and security auditing—not a single hacking program or exploit. Its modules support different assessment tasks, from gathering information to testing whether a vulnerability can be exploited. The project’s open-source Framework is the core command-line environment; Rapid7 also offers Metasploit Pro, a commercial product with additional features. See Rapid7’s Metasploit overview.
Metasploit can help a security professional test defenses and verify exposure, but the same capabilities can disrupt systems when used carelessly. Use it only on systems you own or have explicit permission to test, and stay within the authorization’s defined scope. Rapid7 frames its learning material around systems the user has permission to test: Getting started with Metasploit.
Metasploit Framework vs. Metasploit Pro
| Option | Interface | Status | What it adds or provides |
|---|---|---|---|
| Metasploit Framework | Command line, including msfconsole |
Open source | Core infrastructure, modules, and tools for penetration testing and auditing |
| Metasploit Pro | Web interface as well as command-line workflows | Commercial | Additional features such as a GUI, task chains, vulnerability validation, and Nexpose integration |
Pro is not a prerequisite for learning basic Framework use. Product features, packaging, and licensing can change, so consult Rapid7’s current product information before choosing a commercial offering.
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How Metasploit modules work
The Framework organizes functionality into modules. Their category helps explain what they do, but it does not establish that a module is safe or appropriate for a particular target.
- Auxiliary: Supports tasks such as information gathering and service checks. Some auxiliary modules do not exploit a target.
- Exploit: Attempts to take advantage of a vulnerability or other weakness. An exploit can crash or alter a service.
- Payload: Specifies code or an action associated with successful exploitation. Its behavior and impact depend on the selected module and configuration.
- Post-exploitation: Performs actions after a session or access has been obtained, making scope and authorization especially important.
How to use Metasploit: a beginner-safe workflow
Start in an isolated, deliberately vulnerable lab that you control or are authorized to use. Rapid7 recommends reproducing the target environment where possible before attempting a real target. The steps below explain the console workflow; they are not permission to scan or test arbitrary public hosts.
- Install from a current official source. Rapid7’s documentation says Kali Linux includes the Framework and directs users to Kali’s current instructions. Rapid7 also provides official nightly installers. Follow the current guidance at Rapid7’s getting-started documentation rather than relying on old third-party install commands.
- Start the console. Open a terminal and run
msfconsole, the Framework’s console entry point. - Search for a relevant module. Use the console’s search function to find candidates, then select one whose purpose and target fit the authorized assessment. A matching product name alone is not enough.
- Load and inspect the module. Load it by its full module name. Read its description and references, consult any detailed documentation, and use
show optionsto review its configuration fields. Rapid7’s introduction demonstrates this inspection workflow with a low-impact HTTP title scanner: Metasploit introductory documentation. - Verify applicability and effects. Check the affected product and version, prerequisites, tested targets, selected target, and likely side effects. If the module could interrupt a service or change data, do not run it against a production system without explicit authorization and an approved plan.
- Configure only an in-scope target. Set the required options for the lab or assessment, ensuring the target and any related settings stay within the agreed scope.
- Run and interpret the result. Execute the module only when the test is authorized and its impact is understood. Treat its output as evidence to assess, not as proof by itself that a system is secure or vulnerable.
How to decide whether an exploit is appropriate
A module’s name or a search result is not proof that it applies. Before using an exploit, compare its documentation with the target and the assessment conditions. Rapid7’s guidance says to look at the module description and its references before deciding whether an exploit is appropriate: Rapid7 guidance on selecting an exploit.
- Does the target’s product and version match the affected software?
- Are the required conditions or configuration present?
- What systems or versions does the module say it has been tested against?
- Is the selected target correct, and are all configured addresses within the written scope?
- Could execution crash a service, alter data, or otherwise disrupt operations?
When applicability or impact is uncertain, use a reproduced lab environment first. If a real assessment is involved, get the system owner’s approval and follow the engagement’s rules for timing, targets, and permitted techniques.
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Where to continue learning
After becoming comfortable with module search, documentation, and options, Rapid7’s Metasploit 201: The Journeyman’s Guide to Metasploit offers material on advanced Metasploit features and network penetration testing.
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