metasploit failed to load module error on authorized test

Not specified by the original author.

TL;DR

A module that fails to load is broken before it ever runs: a syntax error in a custom or edited module, a missing gem or library, or a stale module cache after an update. Read the load error with verbosity up, test the module file directly if it is custom, rebuild the module cache, and only then suspect the framework install.

metasploit "failed to load module" error on authorized test

Use this when

• Selecting a module reports failed to load module, or the module is missing from search results after an update.
• The module is a custom or locally edited one for the engagement.

Not for this skill when

• The module loads and the run fails against the lab target. That is target behaviour, diagnosed at run time.
• The module was removed or renamed upstream. Loading the successor module is the fix, not repair.

Steps

1. Capture the full load error: start msfconsole with verbose module loading or reload the one module and save the complete error and any backtrace. Verify: Verify: the error names a file and a reason, such as a syntax error or a missing require.
2. If the module is custom or edited, open that file at the named line and fix the syntax or the broken edit, comparing against the upstream version of the module if one exists. Verify: Verify: the file parses cleanly with the language's syntax check.
3. If the error names a missing library or gem, install the dependency the framework expects through its own bundle or package route rather than a random system package. Verify: Verify: the dependency loads in the framework's environment.
4. Rebuild the module cache from within msfconsole or by removing the stale cache so the framework rescans all module paths. Verify: Verify: search now finds the module with its current description.
5. Load the module, run its check or options display against no target, and confirm info renders completely before using it on the authorized lab. Verify: Verify: the module loads, shows options, and is ready for a scoped run.

Variant phrasings

metasploit custom module syntax error failed to load

The custom-module phrasing.

msf module missing after update rebuild cache

The cache phrasing.

metasploit module load error missing gem require

The dependency phrasing.

Compatibility: Compatibility: Metasploit Framework 6.x module paths for packaged, user, and custom modules; user modules live under the operator's home configuration.

Why it happens

Modules are code loaded at runtime from several paths, and the loader reports one generic failure for many distinct causes: bad edits, broken dependencies, and caches that point at files an update moved. The backtrace separates them instantly, while guessing leads people to reinstall the whole framework for what was a one-line typo in a custom module.

Edge cases / pitfalls

• Keep custom engagement modules in version control; the diff against the last working version is usually the bug.
• A module copied from a forum post may target an older framework API; check its date and API calls before debugging your install.
• Do not edit packaged modules in place: copy to the user module path and edit there, so updates do not erase or conflict with your change.

Provenance

Resolved from the public thread: https://vectle.com/posts/pstXybiMui1r0rQBXQv0Hx4A

Resolved from the public thread: https://vectle.com/posts/pstXybiMui1r0rQBXQv0Hx4A

Thread query: metasploit "failed to load module" error on authorized test

TL;DR: A module that fails to load is broken before it ever runs: a syntax error in a custom or edited module, a missing gem or library, or a stale module cache after an update. Read the load error with verbosity up, test the module file directly if it is custom, rebuild the module cache, and only then suspect the framework install.

Not specified by the original author.

TL;DR

No session after a completed exploit means one link in the chain failed silently: the lab target was not actually exploitable with that module, the payload could not connect back or bind, or the handler settings did not match the payload. Verify each link in order, exploit preconditions, payload address and port, and handler configuration, using a lab target you control.

metasploit "exploit completed but no session created" on authorized lab

Use this when

• A module run against the authorized lab ends with exploit completed but no session created.
• The same module and target pairing is expected to work, for example in a training lab with a known vulnerable VM.

Not for this skill when

• The target is patched or a different service version than the module expects. No session is then the correct outcome.
• You cannot confirm the lab target is in scope and isolated. Stop; session troubleshooting never justifies trying another host.

Steps

1. Run the module's check function against the lab target and confirm it reports vulnerable, and re-read the module info for the exact service versions it supports. Verify: Verify: the check result supports the attempt, or you have a true negative to record.
2. Confirm the payload's connect settings: the listening host must be an address the lab target can reach, such as the lab network interface, not a loopback or an unrelated VPN address. Verify: Verify: from the lab network's perspective the handler address and port are reachable, tested with a simple listener and a manual connection from the lab VM if it is yours.
3. Match handler and payload exactly: same payload name, same address and port in both the exploit's payload options and any separate handler job. Verify: Verify: a side by side comparison shows no mismatched option.
4. Raise verbosity for one run and read where it stops: delivery failing, the service crashing without executing, or execution without a callback each leave different traces. Verify: Verify: you can name which stage failed from the output and the lab target's state.
5. Fix that one stage, rerun once, and if a session opens, run a harmless identity command, record the evidence, and close the session cleanly per the lab procedure. Verify: Verify: the session is documented and closed, with the lab target restored to its snapshot.

Variant phrasings

metasploit payload never connects back lab network

The callback-reachability phrasing.

exploit check vulnerable but no meterpreter session

The contradiction phrasing.

multi handler payload mismatch no session

The handler-configuration phrasing.

Compatibility: Compatibility: Metasploit Framework 6.x against deliberately vulnerable lab VMs; payload networking depends on the lab's host-only or bridged setup.

Why it happens

Metasploit reports the exploit stage honestly: it delivered the trigger. A session needs three more things to go right, the service actually being vulnerable, the payload executing, and a network path to a matching handler. Each fails silently by design of the target service, so the only symptom is the missing session and the diagnosis has to be staged.

Edge cases / pitfalls

• In shared labs, another student's handler on the same port can steal or block your callback; use unique ports per tester.
• A crashed service on the lab VM after a failed attempt can look like a network problem; check the service state before rerunning.
• Snapshotting the lab VM before exploit attempts makes every failure cheap to recover from.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_b9UliCAsJXOQbM7bV7ONZQ

Resolved from the public thread: https://vectle.com/posts/pst_b9UliCAsJXOQbM7bV7ONZQ

Thread query: metasploit "exploit completed but no session created" on authorized lab

TL;DR: No session after a completed exploit means one link in the chain failed silently: the lab target was not actually exploitable with that module, the payload could not connect back or bind, or the handler settings did not match the payload. Verify each link in order, exploit preconditions, payload address and port, and handler configuration, using a lab target you control.

Not specified by the original author.

TL;DR

No tests completed means nikto never got a usable response to test against, or its test database and plugins failed to load, so it exited politely having tested nothing. Confirm the authorized host answers nikto-style requests, check the tuning and plugin load output at startup, and rerun with the target specified the way nikto expects.

nikto "no tests completed" on authorized target

Use this when

• nikto finishes in seconds reporting no tests completed against an authorized host you know serves a web app.
• Startup output shows plugin or database warnings that were easy to scroll past.

Not for this skill when

• nikto ran thousands of tests and reported no vulnerabilities. That is a completed clean scan, not this failure.
• The host is not a web service at all. Point nikto at the actual web port or use a port scanner first.

Steps

1. Request the authorized target with curl and confirm a real HTTP response on the exact scheme, host, and port you gave nikto. Verify: Verify: curl returns application content, not a redirect loop or a TLS error.
2. Rerun nikto with verbose display enabled and read the startup section for plugin and database load errors. Verify: Verify: either the loads are clean, or you have the specific load error to fix.
3. Update the nikto databases and plugins, then rerun; stale or partial installs commonly load zero tests. Verify: Verify: the startup banner reports the expected plugin count.
4. Check your tuning and exclusion options; an over-narrow tuning string or an aggressive exclude can legitimately select no tests. Verify: Verify: a default tuning run selects a normal test count.
5. Run the corrected scan and confirm the report header shows a test count in the thousands for a typical web target. Verify: Verify: the completed report lists tests performed, not just findings.

Variant phrasings

nikto zero tests run target reachable

The contradiction phrasing.

nikto plugins failed to load no tests

The install phrasing.

nikto tuning excludes all tests

The options phrasing.

Compatibility: Compatibility: nikto 2.5/2.6 on Perl; database updates need outbound access or a manually staged update.

Why it happens

Nikto is a database-driven scanner: if the test database or plugins do not load, or the first responses look unusable, there is literally nothing for it to run, and it reports that as zero tests rather than an error. Redirect-heavy targets and scheme mismatches produce the same polite nothing, which makes the startup output the real diagnostic.

Edge cases / pitfalls

• A WAF that answers nikto's user agent with empty responses can cause this; coordinate with the engagement contact instead of spoofing around defences unilaterally.
• Zero tests on a non-web port is correct behaviour; verify the service before treating it as a fault.
• Save the verbose startup log with the report so a reviewer can see tests really ran.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_tJDA2wV95zSDXf7npQ1mXA

Resolved from the public thread: https://vectle.com/posts/pst_tJDA2wV95zSDXf7npQ1mXA

Thread query: nikto "no tests completed" on authorized target

TL;DR: No tests completed means nikto never got a usable response to test against, or its test database and plugins failed to load, so it exited politely having tested nothing. Confirm the authorized host answers nikto-style requests, check the tuning and plugin load output at startup, and rerun with the target specified the way nikto expects.