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
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