DollhouseMCP

# Session Notes - October 10, 2025 - Security Telemetry Implementation **Date**: October 10, 2025 **Time**: 9:45 AM - 10:15 AM (30 minutes) **Focus**: Security audit of Issue #1269 and telemetry implementation **Outcome**: ✅ PR #1313 created with comprehensive telemetry tracking ## Session Summary Completed a thorough security audit of Issue #1269 (Memory Injection Protection), confirming the implementation is production-ready with no shortcuts taken. Added comprehensive telemetry tracking for blocked attacks and created PR #1313 with all enhancements. ## Work Completed ### 1. Security Audit of Issue #1269 ✅ **Audit Findings:** - All 22 security tests properly implemented with real validation - Multi-layer defense architecture working correctly: - ContentValidator with 30+ injection patterns - UnicodeValidator catching bidirectional attacks (HIGH severity) - DOMPurify for XSS protection - SecurityMonitor logging all attempts - No shortcuts or mocks - actual security validation throughout - Trust levels (VALIDATED/UNTRUSTED/QUARANTINED) properly enforced **Verdict**: Production-ready, robust implementation ### 2. Security Telemetry Implementation ✅ **Created `SecurityTelemetry.ts`:** - Real-time attack metrics with 24-hour rolling window - Attack vector aggregation and pattern analysis - Hourly distribution tracking - Export capabilities for SIEM integration - Circular buffer design (MAX_HISTORY = 10,000) for memory management - Severity-based categorization (CRITICAL/HIGH/MEDIUM/LOW) **Integration Points:** - ContentValidator: Records attacks after pattern detection - YAML bomb detection: Tracks recursive reference attempts - Unicode attacks: Logs direction override and mixed script attempts ### 3. Comprehensive Documentation ✅ **Created `MEMORY_INJECTION_PROTECTION.md`:** - Complete guide to memory injection protection - Documents all 30+ validated security patterns - Multi-layer validation pipeline explained - Trust level system documentation - Implementation checklist for developers **Updated `SECURITY_MEASURES.md`:** - Added Memory Injection Protection section - Added Security Telemetry capabilities - Updated monitoring documentation ### 4. Test Coverage ✅ **Added 10 telemetry tests:** - Attack recording and aggregation - Metrics calculation - Timeline analysis - Data export/import - Cleanup operations **All 22 injection tests verified:** - System prompt injection (3 tests) - Data exfiltration (2 tests) - Trust level management (3 tests) - Multi-agent protection (3 tests) - Unicode attacks (3 tests) - Large content/DoS (2 tests) - Edge cases (4 tests) - Recovery/quarantine (2 tests) ### 5. GitHub Issues Created ✅ Based on audit findings, created enhancement issues: - **#1309**: Polyglot Attack Protection - **#1310**: Timing Attack Considerations - **#1311**: Context Confusion Detection Improvements - **#1312**: Minor Test Suite Enhancements ### 6. PR #1313 Created and Fixed ✅ **Initial Issues:** - Build failure due to `ContentValidationOptions` naming conflict - SonarCloud reporting 2 security hotspots **Fixes Applied:** - Renamed to `ContentValidatorOptions` to resolve conflict - Fixed TypeScript compilation error - All tests now passing (macOS ✅, Ubuntu ✅, Windows ✅) **PR Status: 13/14 CI checks passing** - Only SonarCloud showing warnings (likely false positives) - Claude review: Comprehensive approval with high praise - Security audit: Passed ## Technical Details ### Files Modified 1. `src/security/telemetry/SecurityTelemetry.ts` - New telemetry class 2. `src/security/contentValidator.ts` - Integrated telemetry, fixed naming 3. `test/__tests__/unit/security/telemetry/SecurityTelemetry.test.ts` - New tests 4. `docs/security/MEMORY_INJECTION_PROTECTION.md` - New documentation 5. `docs/security/SECURITY_MEASURES.md` - Updated with telemetry ### Key Implementation Decisions - Used singleton pattern for SecurityTelemetry - Circular buffer to prevent memory leaks - Map-based vector tracking for O(1) lookups - 24-hour window for metrics (configurable) - Severity-based attack categorization ## Next Session Priorities 1. **Address SonarCloud Security Hotspots** - Review the 2 reported hotspots - Determine if false positives or actual issues - Apply fixes or suppressions as needed 2. **Monitor PR Approval** - Wait for QA Automated Tests to complete - Address any reviewer feedback - Merge when approved 3. **Consider Claude Review Recommendations** - Timezone handling consistency - LRU cache for sanitization - Thread safety for multi-threaded deployments ## Key Learnings 1. **Naming Conflicts**: Always check for existing interface names across the codebase 2. **Telemetry Design**: Circular buffers essential for long-running processes 3. **Security Testing**: Real validation > mocks for security features 4. **CI/CD**: SonarCloud can be overly cautious with security patterns ## Related Issues/PRs - Issue #1269: Memory Injection Protection (implementation validated) - PR #1313: Security telemetry tracking (created this session) - Issues #1309-1312: Future enhancements identified ## Session Metrics - **Tests Added**: 10 new telemetry tests - **Documentation**: 2 major documents created/updated - **Issues Created**: 4 enhancement issues - **CI Status**: 13/14 checks passing - **Code Quality**: All tests passing, build successful --- *Session completed successfully with PR #1313 ready for review and potential merge pending SonarCloud review.*