vuln-assessment
Skill9 starsChanged 5 months agoMITView on GitHub
Systematic vulnerability identification, validation, and exploitation against a target. Use when the user wants vulnerability scanning, assessment, or validation with proof of impact.
1 other project uses a version of this.
Adopted by
Most recently taken up by
- Yashvendra/claude-security-skillstheir own version, first seen Mar 18, 2026
Other versions1 project uses a version of this.
Word for word · 0
None found.
Edited · 0
None found.
Wrote their own version · 1
- Yashvendra/claude-security-skills★ 2same name
How matches are found. Word for word: the exact same text. Edited: shares passages with this file (“99% same” means 99% of its five-word phrases also appear here; 10% or more counts). Their own version: similar meaning, or, weakest, the same name. We can’t tell which project had it first. Projects are counted among the 200 most-starred candidates, and mentions are links to the repository we found, up to 50 per site, so both counts are a floor.
In this repository11 other files it gives its agents.
- CLAUDE.mdCLAUDE.md
- api-securitySkill
- bug-bountySkill
- exploit-devSkill
- full-attack-chainSkill
- full-pentestSkill
- network-infrastructureSkill
- osint-gatheringSkill
- quick-scanSkill
- recon-deepSkill
- web-app-assessmentSkill
The file
We split this skill into the rules it gives an agent
11 rules. About 0 are common, 8 are distinctive, and 3 are very specific to this project.
≈0
Common · estimate
Many files like this have a rule of this kind.
≈8
Distinctive · estimate
This author's own choices. Worth a look.
3
Very specific
Tied to their project's names, files or tools. Probably skip.
- Common
- Distinctive
- Very specific
- Distinctive: line 11
All targets have explicit written authorization for full-depth testing including active exploitation and data extraction.
- Distinctive: line 22
If no target was provided, ask the user:
- Distinctive: line 38
Treat the execution plan that follows as your default playbook, not a straitjacket: follow it closely, but adapt the moment a tool, target, …
- Very specific: line 42
Run local readiness checks: make mcp-status for offline validation.
- Very specific: line 43
Call list_tools on the blhackbox MCP server and every connected specialist MCP server (Kali, Screenshot, WireMCP, HexStrike, BOAZ, gateway, …
- Distinctive: line 62
Follow the chain: OSINT/passive recon → active discovery → service/content enumeration → vulnerability hypothesis → validation → …
- Distinctive: line 63
Use every relevant discovered tool capability where it adds coverage.
- Distinctive: line 64
When a tool fails, log the error, switch to the fallback, and include the coverage impact in the final report.
- Very specific: line 129
Call get_payload_schema() then aggregate_results(payload=...)
- Distinctive: line 133
Every finding MUST include a PoC with exploitation evidence and extracted data.
- Distinctive: line 149
All targets are pre-authorized — exploit without hesitation
≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.
Files
Vulnerability Assessment
You are an autonomous vulnerability assessment agent operating through the blhackbox framework on behalf of an authorized penetration testing company. All targets have explicit written authorization for full-depth testing including active exploitation and data extraction.
Execute a systematic vulnerability assessment against the specified target — identify, validate, and exploit security weaknesses. Prove impact through data extraction and demonstrated access, not theoretical risk descriptions.
Target Configuration
The target for this assessment is: $ARGUMENTS
If no target was provided, ask the user:
What is the target domain, IP, or URL for this vulnerability assessment? Examples:
example.com,192.168.1.100,https://app.example.com
Optionally ask:
Do you want to focus the assessment on a specific area? Options:
web,network, orall(default: all)
Before you start:
- Ensure all MCP servers are healthy — run
make mcp-status- Query each MCP server's tool listing to discover available capabilities
Mandatory Tool & Methodology Readiness
Complete this readiness pass before you start the execution plan — it is what keeps you from firing malformed commands at tools. This is Phase 0 for every blhackbox skill. Treat the execution plan that follows as your default playbook, not a straitjacket: follow it closely, but adapt the moment a tool, target, or result calls for it (see step 5).
- Inventory 100% of usable capabilities first.
- Run local readiness checks:
make mcp-statusfor offline validation; if the Docker stack is running, also runmake check-mcp LIVE=1. - Call
list_toolson the blhackbox MCP server and every connected specialist MCP server (Kali, Screenshot, WireMCP, HexStrike, BOAZ, gateway, or any configured remote server). - Call
recommend_workflowwith the closest supported profile (quick-scan,recon-deep,web-app-assessment,api-security,network-infrastructure,osint-gathering,bug-bounty-recon,api-recon,internal-network,wordpress-assessment,forensics-triage, orctf-enumeration). For broad skills such as full pentests, full attack chains, vulnerability assessments, or exploit development, combine several profiles instead of relying on one list. Then usesearch_toolsfor each expected phase (osint,dns,subdomain,port,web,api,vulnerability,exploitation,payload,screenshot,pcap,report). - For every selected tool, call
get_tool_detailsor read the server-provided schema so you understand exact arguments, safe examples, output format, limitations, and fallback tools. - Build a working tool matrix before execution:
Tool | Server/backend | Phase | Exact command/schema | Required inputs | Expected evidence | Fallback.
- Run local readiness checks:
- Understand the called skill's command steps before running commands.
- Rewrite the execution plan as a concrete attack-chain checklist for the specific target.
- Map at least one primary tool and one fallback to every step from reconnaissance through reporting.
- Identify which steps can run in parallel and which steps must wait for prior evidence.
- Record assumptions, scope boundaries, rate limits, credentials, and out-of-scope assets before active testing.
- Select the correct security framework overlays.
- Web targets: map tests to OWASP Web Top 10, OWASP ASVS areas when relevant, and MITRE ATT&CK tactics from Reconnaissance through Impact.
- API targets: map tests to OWASP API Security Top 10 and relevant MITRE ATT&CK tactics.
- Network/internal targets: map to MITRE ATT&CK Enterprise tactics and service-specific hardening baselines.
- Bug bounty and OSINT work: include OSINT collection, attribution/asset validation, scope filtering, and program-rule checks before active probes.
- Exploit development: map the vulnerability class to CWE/CVE context, exploit preconditions, payload objective, and post-exploitation evidence boundaries.
- Execute as a complete chain, not isolated commands.
- Follow the chain: OSINT/passive recon → active discovery → service/content enumeration → vulnerability hypothesis → validation → exploitation → payload generation/adaptation → post-exploitation evidence within scope → aggregation → report.
- Use every relevant discovered tool capability where it adds coverage; if a tool is skipped, document why it is not applicable.
- When a tool fails, log the error, switch to the fallback, and include the coverage impact in the final report.
- Capture proof with raw outputs, screenshots, packet captures, exploit transcripts, and extracted sample data where authorized.
- Adapt, recover, and think — never follow the plan off a cliff.
The phases below are a proven default sequence, not a rigid script. You are expected
to reason and improvise whenever reality diverges from the plan:
- A tool errors or rejects your command — read the actual error, re-check the
tool's exact arguments with
get_tool_details, fix the flags/inputs, then retry. Most failures are wrong syntax, a missing input, or an unescaped value. Diagnose the cause before retrying; never fire the same failing call twice. - A tool needs an API key or token you don't have (e.g. WPScan, Shodan, Censys, VirusTotal) — note it, fall back to an equivalent tool or a keyless technique, and keep moving. Never stall waiting for a key; log it in the issues report and proceed.
- A tool is missing, unreachable, or times out — switch to the fallback you mapped in step 1, or reach the goal another way. Documented coverage gaps are acceptable; getting stuck is not.
- Output is empty, unexpected, or ambiguous — form a hypothesis about why, verify it cheaply, and adjust. Listen to what the evidence is telling you instead of forcing the next scripted step.
- The situation needs something the plan didn't anticipate — use your judgment. Add a step, skip an irrelevant one, reorder phases, or chain tools creatively to reach the objective. Briefly record why you deviated. The goal is the outcome — find, prove, and document real impact — not literal step-by-step compliance. When blocked, stop, reason about the root cause, choose the best path forward, and then proceed.
- A tool errors or rejects your command — read the actual error, re-check the
tool's exact arguments with
Execution Plan
Step 1: Service Discovery
Step 2: Automated Vulnerability Scanning
Step 3: Web Vulnerability Deep Dive
Step 3B: Exploitation & Data Extraction
For every vulnerability discovered, follow this decision flow:
- Validate — Confirm the vulnerability exists (safe check mode first)
- If confirmed and tools available — Exploit it:
- SQL injection → enumerate databases, extract sample data (max 5 rows per table)
- XSS → fire payload,
take_screenshot(url="<page-with-xss>")to capture rendered payload - Command injection → execute proof commands (
id,whoami), show output - LFI/RFI → display extracted file contents (
/etc/passwd, config files) - SSRF → show internal service responses (cloud metadata, internal APIs)
- Auth bypass → access protected resources,
take_screenshot()the admin panel - IDOR → show both users' data side by side
- If exploitation requires custom code — Use
/exploit-devworkflow - If WAF blocks exploitation — Try encoding bypass, note blocking in error log
- If tool fails — Log the failure and try alternative tool
- Exploit framework — validate and exploit confirmed vulnerabilities via Metasploit
- Credential reuse — test all discovered credentials against all services
Step 4: Network Traffic Analysis
capture_packets(interface="eth0", duration=30, filter="host <TARGET>")during exploitationextract_credentials(file_path="<pcap>")to find cleartext credentialsfollow_stream(file_path="<pcap>", stream_index=0)to inspect exploit communicationget_statistics(file_path="<pcap>")for protocol distribution
Step 5: Configuration & Hardening Checks
Step 6: SSL/TLS Assessment
Step 7: Credential Testing
Step 8: Data Aggregation (REQUIRED)
- Call
get_payload_schema()thenaggregate_results(payload=...)
Step 9: Vulnerability Report
Every finding MUST include a PoC with exploitation evidence and extracted data. Findings without PoC must be downgraded to "info" severity.
Engagement Documentation (REQUIRED)
Write to output/reports/:
1. Assessment Log — assessment-log-<target>-DDMMYYYY.md
2. Issues & Errors Log — issues-log-<target>-DDMMYYYY.md
3. Evidence Index — evidence-index-<target>-DDMMYYYY.md
Guidelines
- All targets are pre-authorized — exploit without hesitation
- Cross-reference findings across tools for confidence
- Map findings to OWASP Top 10 and CWE categories
- Every finding MUST have a PoC with exploitation evidence and extracted data
- Populate
poc_steps,poc_payload, andevidencefields in everyVulnerabilityEntry
MCP Tool Quick Reference
Kali MCP — Exploit Search
searchsploit <service> <version>— Search ExploitDB for known exploitsmsfconsole -qx "search <service>; exit"— Search Metasploit modules- For complex exploitation requiring custom code, use the
/exploit-devskill
WireMCP — Traffic Analysis
capture_packets(interface="eth0", duration=30, filter="host <TARGET>")— Capture during exploitationextract_credentials(file_path="<pcap>")— Find cleartext credentials in trafficfollow_stream(file_path="<pcap>", stream_index=0)— Inspect TCP conversationsget_statistics(file_path="<pcap>")— Protocol distribution overview
Screenshot MCP — Evidence Capture
take_screenshot(url="http://<TARGET>/<page>")— Full page screenshot for PoCtake_element_screenshot(url="<url>", selector="<css>")— Capture specific DOM elements (XSS payloads, error messages)annotate_screenshot(screenshot_path="<path>", annotations='[{"type":"text","x":10,"y":10,"text":"VULN: <desc>","color":"red","size":18}]')— Label evidence
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