siriusscan--sirius/documentation/dev-notes/archive/AGENT-PROGRESS-SBOM-CPE.md

Agent Scan Enhancements - Developer Progress Notes

Project: Sirius Agent SBOM & Template Detection Implementation
Status: In Progress - Core Features Implemented
Developer: Agent Team Handoff Notes

🎯 Executive Summary

This document summarizes the current progress on the Sirius Agent scan enhancements project, focusing on SBOM (Software Bill of Materials) integration, template-based vulnerability detection, and system fingerprinting capabilities. The core infrastructure is now functional with template detection working end-to-end.

✅ Completed Components

1. Template-Based Vulnerability Detection System

Core Implementation Status: ✅ COMPLETE

• Location: app-agent/internal/commands/scan/scan_command.go
• Template Engine: Fully implemented with YAML template loading and execution
• Detection Types: File hash, configuration-based, registry-based detection
• Result Processing: Template results convert to sirius.Vulnerability format
• Database Integration: Template vulnerabilities properly stored in PostgreSQL

Key Features Implemented:

// Template detection execution
func (c *ScanCommand) executeTemplateDetection(ctx context.Context, agentInfo commands.AgentInfo, result *ScanResult) ([]TemplateDetectionResult, error)

// Template result conversion to vulnerabilities
func (c *ScanCommand) convertScanResultToHostWithJSONB(agentInfo commands.AgentInfo, result *ScanResult) (sirius.Host, map[string]interface{}, map[string]interface{}, map[string]interface{}, error)

// Severity to risk score conversion
func convertSeverityToRiskScore(severity string) float64

Template Directory Resolution:

• Windows: Handles UNC path detection, avoids network shares
• Linux/macOS: Development container integration (/app-agent/templates)
• Fallback Mechanisms: Creates local template directories if needed
• Path Safety: Prevents directory traversal and security issues

2. SBOM Database Integration

Implementation Status: ✅ COMPLETE

• Database Schema: Extended PostgreSQL hosts table with JSONB fields
• Storage Fields:
  • software_inventory - Package information and metadata
  • system_fingerprint - Hardware and network configuration
  • agent_metadata - Scan metadata and statistics
• Source Attribution: Prevents conflicts with network scan data
• Data Structure: Comprehensive JSONB format for flexible querying

JSONB Data Structures:

{
  "software_inventory": {
    "packages": [...],
    "package_count": 150,
    "collected_at": "2024-12-25T07:11:00Z",
    "source": "sirius-agent",
    "statistics": {
      "architectures": {"amd64": 120, "all": 30},
      "publishers": {"canonical": 80, "microsoft": 20}
    }
  },
  "system_fingerprint": {
    "fingerprint": {...},
    "platform": "linux",
    "collection_duration_ms": 1500,
    "summary": {
      "has_cpu_info": true,
      "network_interfaces": 3,
      "storage_devices": 2
    }
  },
  "agent_metadata": {
    "agent_id": "agent-001",
    "scan_timestamp": "2024-12-25T07:11:00Z",
    "scan_summary": {
      "packages_collected": 150,
      "fingerprint_collected": true,
      "scan_errors": []
    }
  }
}

3. Enhanced System Fingerprinting

Implementation Status: ✅ COMPLETE

• Package Detection: Enhanced package information with CPE data
• System Information: Hardware, network, and platform details
• Cross-Platform Support: Windows, Linux, macOS implementations
• Error Handling: Graceful degradation when information unavailable

Enhanced Package Structure:

type EnhancedPackageInfo struct {
    Name         string    `json:"name"`
    Version      string    `json:"version"`
    Architecture string    `json:"architecture"`
    Source       string    `json:"source"`
    Publisher    string    `json:"publisher"`
    InstallDate  time.Time `json:"install_date"`
    Size         int64     `json:"size"`
    Description  string    `json:"description"`
    CPE          string    `json:"cpe,omitempty"`
}

4. Build System & Compilation Fixes

Issues Resolved: ✅ COMPLETE

• Duplicate Function Error: Removed duplicate convertSeverityToRiskScore function
• Cross-Platform Builds: Windows and Linux agents compile successfully
• Import Dependencies: All required packages properly imported
• Binary Generation: Agent binaries created for multiple platforms

Build Verification:

# Windows build - ✅ Working
GOOS=windows GOARCH=amd64 go build -o agent-windows.exe cmd/agent/main.go

# Linux build - ✅ Working
go build -o agent cmd/agent/main.go

# Generated binaries:
agent-windows.exe  (20MB)
agent             (19MB)

🔧 Current Architecture

Enhanced Agent Structure

app-agent/
├── internal/
│   ├── commands/scan/
│   │   ├── scan_command.go           # ✅ Main orchestrator with template integration
│   │   ├── types.go                  # ✅ Enhanced data structures
│   │   └── [platform-specific].go   # ✅ OS-specific implementations
│   ├── detect/                       # ✅ Template detection framework
│   │   ├── template/                 # ✅ YAML template processing
│   │   └── types.go                  # ✅ Detection result structures
│   └── fingerprint/                  # ✅ System profiling modules
├── templates/                        # ✅ YAML vulnerability templates
│   ├── hash-based/                   # ✅ File hash detection
│   ├── config-based/                 # ✅ Configuration analysis
│   └── manifest.json                 # ✅ Template metadata
└── cmd/
    ├── agent/main.go                 # ✅ Primary agent executable
    └── server/main.go                # ✅ Agent server component

Database Integration Flow

Agent Scan → Template Detection → Vulnerability Conversion → PostgreSQL Storage
     ↓              ↓                      ↓                      ↓
Enhanced SBOM → Template Results → sirius.Vulnerability → host_vulnerabilities

🚨 Known Issues & Resolutions

1. Template Vulnerability Reporting

Issue: Template detections were not being properly converted to vulnerabilities

Status: ✅ RESOLVED

Solution:

• Fixed vulnerability conversion logic in convertScanResultToHostWithJSONB
• Proper severity to risk score mapping
• Template results now properly populate host.Vulnerabilities field
• Database storage working correctly

2. Windows Agent Template Path Resolution

Issue: Windows agents having issues with UNC paths and network shares

Status: ✅ RESOLVED

Solution:

• Added UNC path detection (\\ prefix checking)
• Fallback to local directory creation
• Safe path resolution avoiding network shares
• Multiple fallback mechanisms for template directory location

3. Compilation Errors

Issue: Duplicate function declarations causing build failures

Status: ✅ RESOLVED

Root Cause: Duplicate convertSeverityToRiskScore function in same file

Solution: Removed duplicate function, verified builds across platforms

🔄 Integration Status

Agent ↔ Database Integration: ✅ WORKING

• Template vulnerabilities stored in PostgreSQL
• SBOM data persisted in JSONB fields
• Source attribution prevents scan conflicts
• Query performance optimized

Agent ↔ API Integration: ✅ WORKING

• Enhanced JSON response format
• Vulnerability data properly formatted
• Error handling and logging implemented
• Source-aware vulnerability submission

Template System: ✅ WORKING

• YAML template loading and parsing
• Multiple detection types supported
• Template directory resolution across platforms
• Result standardization and conversion

📊 Template Detection Examples

Working Template Format:

# apache-vulnerabilities.yaml
id: "APACHE-2024-001"
info:
  name: "Apache Vulnerable Binary Detection"
  severity: "high"
  description: "Detects vulnerable Apache binaries"
  cve: "CVE-2023-12345"

detection:
  type: "file-hash"
  method: "sha256"
  targets:
    - path: "/usr/sbin/apache2"
      hash: "a1b2c3d4e5f6789abcdef123456789abcdef123456789abcdef123456789abcdef"
    - path: "C:\\Program Files\\Apache24\\bin\\httpd.exe"
      hash: "b2c3d4e5f6789abcdef123456789abcdef123456789abcdef123456789abcdef12"

conditions:
  - file_exists: true
  - hash_match: true

Detection Result Flow:

Template Execution → DetectionResult → TemplateDetectionResult → sirius.Vulnerability → Database

🧪 Testing Status

Functional Testing: ✅ VERIFIED

• Template detection executes successfully
• Vulnerabilities properly stored in database
• SBOM data persists correctly
• Agent builds and runs on multiple platforms

Integration Testing: ✅ VERIFIED

• Agent → API → Database flow working
• Template results convert to vulnerability records
• No conflicts with network scan data
• Error handling graceful across failure modes

Platform Testing: ✅ VERIFIED

• Windows: Agent builds and template detection works
• Linux: Full functionality verified in containers
• Cross-Platform: Template paths resolve correctly

🛠️ Development Environment

Container Setup: ✅ CONFIGURED

• Development: app-agent directory mounted at /app-agent in container
• Template Location: /app-agent/templates for development mode
• Production: Agent executable directory template resolution
• Docker Integration: Sirius-engine container properly configured

Build Process: ✅ STREAMLINED

# Development builds
cd app-agent
go build -o agent cmd/agent/main.go

# Cross-platform builds
GOOS=windows GOARCH=amd64 go build -o agent-windows.exe cmd/agent/main.go

# Container execution
docker exec sirius-engine ./agent scan

🚀 Next Steps for Handoff

Immediate Priorities

1. Template Repository Expansion

   • Add more YAML templates for common vulnerabilities
   • Implement template versioning and updates
   • Create template validation pipeline

2. Script-Based Detection

   • PowerShell script execution framework
   • Bash script support for Linux/macOS
   • Security sandboxing implementation

3. Performance Optimization

   • Template execution parallelization
   • Database query optimization
   • Memory usage optimization for large scans

Long-Term Enhancements

1. Repository Management System

   • Remote template/script updates
   • GPG signature verification
   • Automatic repository synchronization

2. Advanced Fingerprinting

   • Certificate store enumeration
   • Service detection and analysis
   • User and privilege enumeration

3. Security Hardening

   • Script execution sandboxing
   • Template validation strengthening
   • Audit logging enhancement

📋 Handoff Checklist

Code Quality: ✅ READY

• ✅ All builds compile successfully
• ✅ Core functionality tested and working
• ✅ Error handling implemented
• ✅ Logging and debugging capabilities
• ✅ Cross-platform compatibility verified

Documentation: ✅ READY

• ✅ Code structure documented
• ✅ Template format specification
• ✅ Database schema documented
• ✅ Integration points identified
• ✅ Known issues and resolutions documented

Deployment: ✅ READY

• ✅ Container configuration working
• ✅ Binary generation automated
• ✅ Database migrations compatible
• ✅ API integration functional
• ✅ Template system operational

🔍 Code Locations Reference

Primary Implementation Files:

app-agent/internal/commands/scan/scan_command.go     # Main template integration
app-agent/internal/detect/                          # Detection framework
app-agent/templates/                                 # YAML templates
app-agent/cmd/agent/main.go                          # Agent executable

Database Integration:

go-api/sirius/postgres/host_operations.go           # Host JSONB operations
go-api/sirius/postgres/models/host.go               # Host model with JSONB fields

Template Examples:

app-agent/templates/hash-based/                     # File hash templates
app-agent/templates/config-based/                   # Configuration templates
app-agent/templates/manifest.json                   # Template metadata

---

Status: ✅ READY FOR HANDOFF
Core Features: Template detection, SBOM integration, database storage - ALL WORKING
Next Developer: Continue with script framework and repository management system