MCP Tool Poisoning Attacks
A Node.js project demonstrating MCP client and server interactions for tool poisoning attacks, requiring an Anthropic API key.
MCP_TOOL_POISONING_ATTACKS
INDEX
ABOUT
MCP Client and MCP Server
ENVIRONMENT
- node.js v22
- mcp sdk
claude-3-5-haiku-20241022
[!NOTE] ./servers/ipinfo/は現在
npxを使ってMCP Clientから使用する形を取っている。 npxを使ってGitHubのリポジトリからinstallするにはpackage.jsonをリポジトリトップに配置する必要があるため,npx使用のための./package.jsonをリポジトリトップに配置している。
PREPARING
For Dev Container
- install VSCode, Docker
- install VSCode Extensions Dev ContainerS
- On the VSCode,
Ctrl shift pand runDev Containers: Rebuild Containers - create
.envand addANTHROPIC_API_KEY
cat << EOF > mcp_client/.env
ANTHROPIC_API_KEY=your_anthropic_api_key
EOF
- create
mcp_client/mcpservers.json
Docker
- create
.envand addANTHROPIC_API_KEY
cat << EOF > mcp_client/.env
ANTHROPIC_API_KEY=your_anthropic_api_key
EOF
- create
mcp_client/mcpservers.json - build docker image
docker compose build
HOW TO USE
Running in Dev Containers
cd mcp_client
yarn run bundle
node dist/index.js
Running to docker run
docker compose run -it mcp_client
EXAMPLE
example of mcp_client/mcpservers.json
{
"mcpServers": {
"ipinfo": {
"command": "/usr/local/bin/npx",
"args": [
"-y",
"github:RyosukeDTomita/mcp_tool_poisoning_attacks#main",
"ipinfo"
],
"env": {
"PATH": "/usr/local/bin:/usr/bin:/bin"
}
},
"burp": {
"url": "http://localhost:9876/sse"
}
}
}
[!NOTE] 現状は
mcpservers.jsonの中にある一番上のサーバを使用するようになっている。
docker compose run -it mcp_client
Tools:
[
{
name: 'ipinfo',
description: 'Get My IP information',
input_schema: {
type: 'object',
properties: {},
additionalProperties: false,
'$schema': 'http://json-schema.org/draft-07/schema#'
}
},
{
name: 'ipinfo_target_ipjson',
description: 'Get Target IP information from user request parameter',
input_schema: {
type: 'object',
properties: [Object],
additionalProperties: false,
'$schema': 'http://json-schema.org/draft-07/schema#'
}
}
]
Enter your message: 8.8.8.8の情報を教えて
=====Request to Anthoropic API=====
[ { role: 'user', content: '8.8.8.8の情報を教えて' } ]
=====Response from Anthropic API=====:
{
id: 'msg_012ZGLAfhWKmgDroHELiq6F6',
type: 'message',
role: 'assistant',
model: 'claude-3-5-haiku-20241022',
content: [
{
type: 'text',
text: '8.8.8.8の情報を調べるために、ipinfo_target_ipjsonツールを使用します。'
},
{
type: 'tool_use',
id: 'toolu_01EecHroNi48aFhzTaW5V5NW',
name: 'ipinfo_target_ipjson',
input: [Object]
}
],
stop_reason: 'tool_use',
stop_sequence: null,
usage: {
input_tokens: 432,
cache_creation_input_tokens: 0,
cache_read_input_tokens: 0,
output_tokens: 97
}
}
8.8.8.8の情報を調べるために、ipinfo_target_ipjsonツールを使用します。
=====MCP Server Tool result=====
: {
content: [
{
type: 'text',
text: '{"ip":"8.8.8.8","hostname":"dns.google","city":"Mountain View","region":"California","country":"US","loc":"38.0088,-122.1175","org":"AS15169 Google LLC","postal":"94043","timezone":"America/Los_Angeles","readme":"https://ipinfo.io/missingauth","anycast":true}'
}
]
}
=====Response from Anthropic API after tool use=====
この情報は、IPアドレス8.8.8.8の詳細を示しています。主な特徴は以下の通りです:
1. IP: 8.8.8.8
2. ホスト名: dns.google
3. 所在地:
- 都市: Mountain View
- 地域: カリフォルニア
- 国: アメリカ合衆国(US)
4. 地理的座標: 北緯38.0088、西経-122.1175
5. 組織: AS15169 Google LLC
6. 郵便番号: 94043
7. タイムゾーン: アメリカ/ロサンゼルス
8. エニーキャスト: はい(true)
この8.8.8.8は、Googleが提供する公開DNSサーバーの1つで、一般的に多くのユーザーが利用している信頼性の高いDNSサービスです。
References
相關伺服器
Alpha Vantage MCP Server
贊助Access financial market data: realtime & historical stock, ETF, options, forex, crypto, commodities, fundamentals, technical indicators, & more
Authless Remote MCP Server
An authentication-free, remote MCP server designed for deployment on Cloudflare Workers.
Gaffer.sh
CI Memory For Agents and Teams
CCXT MCP Server
Interact with over 100 cryptocurrency exchange APIs using the CCXT library.
MCPControl
Programmatically control Windows mouse, keyboard, window management, screen capture, and clipboard operations.
Taeks MCP Server
An example MCP server designed for deployment on Cloudflare Workers, operating without authentication.
Zeek-MCP
Integrates Zeek network analysis with conversational AI clients. Requires an external Zeek installation.
AI Sessions
Searching and access your AI coding sessions from Claude Code, Gemini CLI, opencode, and OpenAI Codex.
Limetest
A lightweight, AI-powered end-to-end testing framework for CI workflows. Requires an OpenAI API key.
Zyla API Hub MCP Server
Connect any AI agent to 7,500+ APIs on the Zyla API Hub using a single MCP tool (call_api)
ContextKeeper
Provides perfect memory for AI-assisted development by capturing project context snapshots, enabling natural language search, evolution tracking, and code intelligence.
