MCP Network Permissions Test Results - Tool Access Restrictions Identified

[github-actions]

MCP Network Permissions Test Results

Summary

Attempted to test MCP network permissions feature to validate domain restrictions, but encountered tool access restrictions that prevented comprehensive testing.

Test Environment

• Platform: GitHub Actions runner (Linux)
• Working Directory: /home/runner/work/gh-aw/gh-aw
• Available Tools: curl, wget (both require approval)
• MCP Tools: No MCP fetch tool available in current environment

Access Restrictions Encountered

🚫 Network Tool Restrictions

1. WebFetch Tool: Permission denied - requires approval for network access
2. curl/wget Commands: Requires approval for network access
3. MCP Fetch Tool: Not available in current MCP resource list

Test Results

❌ Unable to Test Allowed Domain

• Target: https://example.com/
• Result: Could not access due to tool restrictions
• Tools Attempted: WebFetch, curl

❌ Unable to Test Blocked Domains

• Targets:
  • https://httpbin.org/json
  • https://api.github.com/user
  • https://www.google.com/
  • http://malicious-example.com/
• Result: Could not access due to tool restrictions
• Tools Attempted: WebFetch, curl

Security Observations

✅ Network Isolation Already Active

The test environment demonstrates that network isolation is already functioning:

1. Command Restrictions: Direct network commands (curl, wget) require approval
2. Tool Restrictions: WebFetch tool requires explicit permission
3. MCP Restrictions: No MCP fetch tools provided in environment

🔒 Network Security Status

• Isolation Level: High - All network access requires approval
• Tool Access: Restricted - No direct network access available
• MCP Integration: Limited - No MCP network tools available

Recommendations

For Complete Network Permission Testing:

1. Grant WebFetch Tool Access: Enable WebFetch tool for domain testing
2. Provide MCP Fetch Tool: Add MCP fetch tool with domain restrictions
3. Enable Controlled curl Access: Allow curl commands for testing purposes
4. Document Proxy Configuration: Provide details on Squid proxy setup

For Network Security Enhancement:

1. Document Current Restrictions: Create documentation on current network isolation
2. Test Suite Development: Create automated tests for network permission validation
3. Proxy Log Analysis: Implement logging to track allowed vs blocked requests
4. Security Monitoring: Add alerts for unauthorized network access attempts

Expected Behavior (Not Tested)

Based on the task description, the expected behavior should be:

• ✅ https://example.com/ - Should be accessible (allowed domain)
• ❌ https://httpbin.org/json - Should be blocked
• ❌ https://api.github.com/user - Should be blocked
• ❌ https://www.google.com/ - Should be blocked
• ❌ http://malicious-example.com/ - Should be blocked

Tools Required for Future Testing

To properly test MCP network permissions, please provide access to:

• WebFetch tool with network access permissions
• MCP fetch tool configured with domain restrictions
• curl/wget commands with controlled network access

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