MCP Penetration Testing

Secure your Model Context Protocol servers, tools andAI integrations with expert-led MCP penetration testing. Blacklock helpsidentify risks across MCP tools, tokens, permissions, context sharing, commandexecution and agent workflows.

overview

A New Approach to MCP Security Assurance

Model Context Protocol introduces a powerful way for AIapplications and agents to connect with tools, data and business systems. Italso introduces new security risks if trust boundaries, permissions and toolexecution are not properly controlled.

Blacklock assesses MCP implementations from an attacker’sperspective to identify weaknesses such as token mismanagement, secretexposure, tool poisoning, command injection, privilege escalation, insufficient authentication, shadow MCP servers, context injection and over-sharing.

Our methodology is aligned with OWASP MCP Top 10, OWASPLLM Top 10, OWASPAI Testing Guide, MITRE ATLAS and NIST AI RMF.Testing combines MCP-specific attack simulation with API, application andinfrastructure security testing.
Our methodology

Our Approach to Comprehensive Assessment

he scanning process we perform systematically
Scoping & Target Specification

We work with you to define the internal network scope,testing locations, VLANs, subnets, server zones, domain environment, testingwindows and business-critical systems.

No user or domain credentials are required unless agreedduring scoping. Testing can be performed from an internal LAN segment, acontrolled test host or an agreed access method. The objective is to understandwhat an unauthenticated internal user or attacker with network access coulddiscover, exploit and escalate.

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he scanning process we perform systematically
MCP System Profiling & Reconnaissance

Blacklock maps the LLM application architecture, model provider, prompt structure, input and output channels, API routes, data flows, user roles, document ingestion points, memory components and retrieval logic.


We review prompt leakage exposure, verbose errors, sensitive output risks, weak tenant isolation, unsafe plugin design and public information that may assist an attacker.

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he scanning process we perform systematically
Manual MCP Penetration Testing

Blacklock performs automated checks across MCP inputs,tool parameters, schemas, API routes and agent workflows.

Testing may include tool schema fuzzing, parametertampering, injection checks, authentication and authorisation review, secretexposure checks, rate limit testing, context leakage testing and unsafe toolinvocation attempts.

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he scanning process we perform systematically
Manual MCP Penetration Testing

Blacklock consultants manually test MCP implementationsfor exploitable weaknesses. Testing includes tool poisoning, command injection,SSRF via URL-accepting tools, scope creep, unauthorised tool invocation,excessive agency, context injection, token misuse and privilege escalation.

Where MCP is used by AI agents, we also test whethermalicious prompts, documents or tool outputs can manipulate the agent intoinvoking sensitive tools or bypassing human approval steps.

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he scanning process we perform systematically
Reporting & Remediation Guidance

Blacklock provides clear reporting with executivesummary, technical findings, proof of concept, evidence, risk rating, affectedtools, attack paths and remediation guidance.

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about us

Why Us for MCP Penetration Testing?

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MCP-Specific Security Coverage
Blacklock tests risks unique to MCP environments,including tool poisoning, token exposure, context over-sharing, commandexecution, shadow MCP servers and privilege escalation through scope creep.
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Agentic Workflow Expertise
MCP is often used inside agentic AI systems. Blacklocktests how tools, agents, prompts and workflows interact under adversarialconditions.
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Standards-Aligned Methodology
Our approach is aligned with OWASP MCP Top 10, OWASPLLM Top 10, OWASPAI Testing Guide, MITRE ATLAS and NIST AI RMF.
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Our Team
Blacklock’s penetration testers combine AI security,API testing, application security and infrastructure expertise to assess MCPenvironments safely and effectively.
Endpoint Protection and Beyond

Our Services

Our Compliance Assurance Services
AI Application Penetration Testing
Assess AI-powered applications, copilots, agents andworkflows for prompt injection, insecure integrations, data leakage, toolmisuse and unsafe autonomous behaviour.
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Our Compliance Assurance Services
LLM Penetration Testing
Test LLM applications for prompt injection,jailbreaks, sensitive data disclosure, insecure output handling, RAG weaknessesand system prompt leakage.
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Our Compliance Assurance Services
MCP Penetration Testing
Assess MCP servers, tools, tokens and agentintegrations for OWASP MCPTop 10 risks, including tool poisoning, command injection, scope creep andcontext over-sharing.
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pricing plans

Precisely Curated Plans

Fit for MCP servers and tool integrations
OWASP MCP Top 10-aligned testing
Tool inventory and schema review
Token and secret handling assessment
Authentication and authorisation testing
Tool poisoning and parameter tampering checks
Command injection and SSRF testing
Context sharing and data leakage review
Audit logging and telemetry review
Executive and technical reporting
Fit for MCP-enabled AI agents and workflows
Agent-to-tool permission testing
Excessive agency and approval bypass checks
Scope creep and privilege escalation testing
Indirect prompt injection through tool outputs
Multi-step chained tool abuse testing
Shadow MCP server discovery
Cross-user and cross-tenant exposure review
Defence architecture recommendations
Retest verification on request
CUSTOMER TESTIMONIAL

Hear From Our Customers

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Secure your MCP servers, tools and AI integrations withexpert-led penetration testing across tokens, permissions, context, commandsand agent workflows.

Frequently Asked Questions (FAQs)

What is MCP Penetration Testing?
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MCP Penetration Testing is a security assessment ofModel Context Protocol servers, tools and integrations. It checks whetherattackers can abuse tools, steal tokens, manipulate context or triggerunauthorised actions.

What MCP risks does Blacklock test?
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Blacklock tests token mismanagement, secret exposure,tool poisoning, command injection, privilege escalation, weak authentication,lack of audit logging, shadow MCP servers and context over-sharing.

Why is MCP security important?
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MCP connects AI applications to tools, data andbusiness systems. Weak permissions or unsafe tool design can allow an attackerto manipulate an AI system into accessing data or performing actions beyond theintended scope.

Does MCP testing include prompt injection?
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Yes. Blacklock tests whether malicious prompts,documents or tool outputs can influence MCP tool calls, bypass controls orcause unintended actions.

What access is required?
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Access may include MCP server details, test users, toolschemas, API documentation, authentication flows, approved tokens, architecturediagrams and access to a controlled test environment.

Can Blacklock test internal MCP servers?
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Yes. Blacklock can assess internal MCP servers whereaccess is provided through an agreed and controlled testing method.

Is this different from LLM Penetration Testing?
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Yes. LLM testing focuses on model-integratedapplication behaviour. MCP testing focuses on the protocol layer, tools,permissions, tokens, context sharing and agent-to-tool interactions.

How long does MCP Penetration Testing take?
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The duration depends on the number of MCP servers,tools, workflows, permissions and integrations in scope. A typical assessmenttakes several days to two weeks.

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