Advanced vulnerability management and penetration testing form the cornerstone of proactive security assessment, enabling organizations to identify, prioritize, and remediate security weaknesses before they can be exploited. This comprehensive guide provides enterprise-grade implementations for automated vulnerability scanning, penetration testing frameworks, and risk-based remediation strategies.

Advanced Vulnerability Management and Penetration Testing Automation

Section 1: Vulnerability Management Architecture

Enterprise vulnerability management requires a comprehensive approach encompassing asset discovery, vulnerability assessment, risk prioritization, and remediation tracking across diverse technology stacks.

Comprehensive Vulnerability Management Platform

// vulnerability-manager.go
package main

import (
    "context"
    "encoding/json"
    "fmt"
    "sort"
    "sync"
    "time"

    "github.com/google/uuid"
)

type VulnerabilityManager struct {
    scanners         map[string]VulnerabilityScanner
    assetInventory   *AssetInventory
    riskEngine       *RiskScoringEngine
    remediation      *RemediationOrchestrator
    reporting        *ReportingEngine
    notifications    *NotificationService
    database         *VulnerabilityDatabase
    mutex            sync.RWMutex
}

type VulnerabilityScanner interface {
    Name() string
    ScanTarget(ctx context.Context, target ScanTarget) (*ScanResult, error)
    GetCapabilities() []ScanCapability
    GetCredentials() []CredentialType
}

type ScanTarget struct {
    ID          string            `json:"id"`
    Name        string            `json:"name"`
    Type        string            `json:"type"`
    Address     string            `json:"address"`
    Ports       []int             `json:"ports"`
    Credentials []Credential      `json:"credentials"`
    Tags        []string          `json:"tags"`
    Metadata    map[string]string `json:"metadata"`
    Priority    string            `json:"priority"`
}

type ScanResult struct {
    ScanID          string                 `json:"scan_id"`
    TargetID        string                 `json:"target_id"`
    ScannerName     string                 `json:"scanner_name"`
    StartTime       time.Time              `json:"start_time"`
    EndTime         time.Time              `json:"end_time"`
    Status          string                 `json:"status"`
    Vulnerabilities []Vulnerability        `json:"vulnerabilities"`
    HostInfo        HostInformation        `json:"host_info"`
    Services        []ServiceInfo          `json:"services"`
    Compliance      []ComplianceCheck      `json:"compliance"`
    Statistics      ScanStatistics         `json:"statistics"`
}

type Vulnerability struct {
    ID              string                 `json:"id"`
    CVE             string                 `json:"cve"`
    Title           string                 `json:"title"`
    Description     string                 `json:"description"`
    Severity        string                 `json:"severity"`
    CVSS            CVSSScore              `json:"cvss"`
    CWE             string                 `json:"cwe"`
    Category        string                 `json:"category"`
    Plugin          string                 `json:"plugin"`
    Port            int                    `json:"port"`
    Protocol        string                 `json:"protocol"`
    Service         string                 `json:"service"`
    Exploit         bool                   `json:"exploit"`
    Solution        string                 `json:"solution"`
    References      []string               `json:"references"`
    FirstSeen       time.Time              `json:"first_seen"`
    LastSeen        time.Time              `json:"last_seen"`
    RiskScore       float64                `json:"risk_score"`
    BusinessImpact  string                 `json:"business_impact"`
    Metadata        map[string]interface{} `json:"metadata"`
}

type CVSSScore struct {
    Version     string  `json:"version"`
    BaseScore   float64 `json:"base_score"`
    Vector      string  `json:"vector"`
    Temporal    float64 `json:"temporal"`
    Environment float64 `json:"environment"`
}

type NessusScanner struct {
    endpoint    string
    accessKey   string
    secretKey   string
    client      *http.Client
}

func NewNessusScanner(endpoint, accessKey, secretKey string) *NessusScanner {
    return &NessusScanner{
        endpoint:  endpoint,
        accessKey: accessKey,
        secretKey: secretKey,
        client:    &http.Client{Timeout: 30 * time.Second},
    }
}

func (ns *NessusScanner) Name() string {
    return "nessus"
}

func (ns *NessusScanner) GetCapabilities() []ScanCapability {
    return []ScanCapability{
        ScanCapabilityVulnerability,
        ScanCapabilityCompliance,
        ScanCapabilityMalware,
        ScanCapabilityConfiguration,
    }
}

func (ns *NessusScanner) ScanTarget(ctx context.Context, target ScanTarget) (*ScanResult, error) {
    // Create scan configuration
    scanConfig := map[string]interface{}{
        "uuid": "731a8e52-3ea6-a291-ec0a-d2ff0619c19d7bd788d6", // Basic Network Scan
        "settings": map[string]interface{}{
            "name":   fmt.Sprintf("Automated Scan - %s", target.Name),
            "target": target.Address,
            "scanner_id": "1",
        },
    }

    // Add credentials if available
    if len(target.Credentials) > 0 {
        scanConfig["credentials"] = ns.formatCredentials(target.Credentials)
    }

    // Create scan
    scanID, err := ns.createScan(ctx, scanConfig)
    if err != nil {
        return nil, fmt.Errorf("failed to create scan: %v", err)
    }

    // Launch scan
    if err := ns.launchScan(ctx, scanID); err != nil {
        return nil, fmt.Errorf("failed to launch scan: %v", err)
    }

    // Wait for completion
    if err := ns.waitForScanCompletion(ctx, scanID); err != nil {
        return nil, fmt.Errorf("scan failed or timed out: %v", err)
    }

    // Download results
    results, err := ns.downloadResults(ctx, scanID)
    if err != nil {
        return nil, fmt.Errorf("failed to download results: %v", err)
    }

    return ns.parseResults(results, target), nil
}

func (ns *NessusScanner) createScan(ctx context.Context, config map[string]interface{}) (string, error) {
    configBytes, _ := json.Marshal(config)
    
    req, err := http.NewRequestWithContext(ctx, "POST", 
        fmt.Sprintf("%s/scans", ns.endpoint), 
        bytes.NewBuffer(configBytes))
    if err != nil {
        return "", err
    }

    req.Header.Set("X-ApiKeys", fmt.Sprintf("accessKey=%s; secretKey=%s", ns.accessKey, ns.secretKey))
    req.Header.Set("Content-Type", "application/json")

    resp, err := ns.client.Do(req)
    if err != nil {
        return "", err
    }
    defer resp.Body.Close()

    var response struct {
        Scan struct {
            ID string `json:"id"`
        } `json:"scan"`
    }

    if err := json.NewDecoder(resp.Body).Decode(&response); err != nil {
        return "", err
    }

    return response.Scan.ID, nil
}

func (ns *NessusScanner) parseResults(data []byte, target ScanTarget) *ScanResult {
    var nessusReport NessusReport
    json.Unmarshal(data, &nessusReport)

    result := &ScanResult{
        ScanID:      uuid.New().String(),
        TargetID:    target.ID,
        ScannerName: ns.Name(),
        StartTime:   time.Now().Add(-1 * time.Hour), // Placeholder
        EndTime:     time.Now(),
        Status:      "completed",
    }

    // Convert Nessus vulnerabilities to standard format
    for _, item := range nessusReport.Report.ReportItems {
        vuln := Vulnerability{
            ID:          fmt.Sprintf("NESSUS-%s", item.PluginID),
            CVE:         item.CVE,
            Title:       item.PluginName,
            Description: item.Synopsis,
            Severity:    ns.mapSeverity(item.RiskFactor),
            Category:    item.PluginFamily,
            Plugin:      item.PluginID,
            Port:        item.Port,
            Protocol:    item.Protocol,
            Service:     item.SvcName,
            Solution:    item.Solution,
            FirstSeen:   time.Now(),
            LastSeen:    time.Now(),
        }

        if item.CVSSBaseScore != "" {
            if score, err := strconv.ParseFloat(item.CVSSBaseScore, 64); err == nil {
                vuln.CVSS = CVSSScore{
                    Version:   "3.1",
                    BaseScore: score,
                    Vector:    item.CVSSVector,
                }
            }
        }

        result.Vulnerabilities = append(result.Vulnerabilities, vuln)
    }

    return result
}

type OpenVASScanner struct {
    endpoint string
    username string
    password string
    client   *openvas.Client
}

func NewOpenVASScanner(endpoint, username, password string) *OpenVASScanner {
    return &OpenVASScanner{
        endpoint: endpoint,
        username: username,
        password: password,
    }
}

func (ovs *OpenVASScanner) Name() string {
    return "openvas"
}

func (ovs *OpenVASScanner) ScanTarget(ctx context.Context, target ScanTarget) (*ScanResult, error) {
    // Connect to OpenVAS
    client, err := openvas.NewClient(ovs.endpoint, ovs.username, ovs.password)
    if err != nil {
        return nil, fmt.Errorf("failed to connect to OpenVAS: %v", err)
    }
    defer client.Close()

    // Create target
    targetID, err := client.CreateTarget(target.Name, target.Address)
    if err != nil {
        return nil, fmt.Errorf("failed to create target: %v", err)
    }

    // Create and start scan
    scanID, err := client.CreateScan(fmt.Sprintf("Scan-%s", target.Name), targetID)
    if err != nil {
        return nil, fmt.Errorf("failed to create scan: %v", err)
    }

    if err := client.StartScan(scanID); err != nil {
        return nil, fmt.Errorf("failed to start scan: %v", err)
    }

    // Wait for completion
    for {
        status, err := client.GetScanStatus(scanID)
        if err != nil {
            return nil, fmt.Errorf("failed to get scan status: %v", err)
        }

        if status == "Done" {
            break
        }

        select {
        case <-ctx.Done():
            return nil, ctx.Err()
        case <-time.After(30 * time.Second):
            continue
        }
    }

    // Get results
    results, err := client.GetScanResults(scanID)
    if err != nil {
        return nil, fmt.Errorf("failed to get scan results: %v", err)
    }

    return ovs.parseResults(results, target), nil
}

type CustomScanner struct {
    name         string
    capabilities []ScanCapability
    scanFunc     func(ctx context.Context, target ScanTarget) (*ScanResult, error)
}

func NewCustomScanner(name string, capabilities []ScanCapability, scanFunc func(ctx context.Context, target ScanTarget) (*ScanResult, error)) *CustomScanner {
    return &CustomScanner{
        name:         name,
        capabilities: capabilities,
        scanFunc:     scanFunc,
    }
}

func (cs *CustomScanner) Name() string {
    return cs.name
}

func (cs *CustomScanner) GetCapabilities() []ScanCapability {
    return cs.capabilities
}

func (cs *CustomScanner) ScanTarget(ctx context.Context, target ScanTarget) (*ScanResult, error) {
    return cs.scanFunc(ctx, target)
}

// Risk Scoring Engine
type RiskScoringEngine struct {
    factors []RiskFactor
    weights map[string]float64
}

type RiskFactor interface {
    Name() string
    Calculate(vuln Vulnerability, asset Asset) float64
}

type CVSSRiskFactor struct{}

func (crf *CVSSRiskFactor) Name() string {
    return "cvss"
}

func (crf *CVSSRiskFactor) Calculate(vuln Vulnerability, asset Asset) float64 {
    return vuln.CVSS.BaseScore
}

type AssetCriticalityFactor struct{}

func (acf *AssetCriticalityFactor) Name() string {
    return "asset_criticality"
}

func (acf *AssetCriticalityFactor) Calculate(vuln Vulnerability, asset Asset) float64 {
    switch asset.Criticality {
    case "critical":
        return 1.0
    case "high":
        return 0.8
    case "medium":
        return 0.6
    case "low":
        return 0.4
    default:
        return 0.5
    }
}

type ExploitabilityFactor struct{}

func (ef *ExploitabilityFactor) Name() string {
    return "exploitability"
}

func (ef *ExploitabilityFactor) Calculate(vuln Vulnerability, asset Asset) float64 {
    if vuln.Exploit {
        return 1.0
    }
    return 0.3
}

type BusinessImpactFactor struct{}

func (bif *BusinessImpactFactor) Name() string {
    return "business_impact"
}

func (bif *BusinessImpactFactor) Calculate(vuln Vulnerability, asset Asset) float64 {
    switch vuln.BusinessImpact {
    case "critical":
        return 1.0
    case "high":
        return 0.8
    case "medium":
        return 0.6
    case "low":
        return 0.4
    default:
        return 0.5
    }
}

func NewRiskScoringEngine() *RiskScoringEngine {
    engine := &RiskScoringEngine{
        factors: []RiskFactor{
            &CVSSRiskFactor{},
            &AssetCriticalityFactor{},
            &ExploitabilityFactor{},
            &BusinessImpactFactor{},
        },
        weights: map[string]float64{
            "cvss":              0.4,
            "asset_criticality": 0.3,
            "exploitability":    0.2,
            "business_impact":   0.1,
        },
    }
    return engine
}

func (rse *RiskScoringEngine) CalculateRiskScore(vuln Vulnerability, asset Asset) float64 {
    totalScore := 0.0
    totalWeight := 0.0

    for _, factor := range rse.factors {
        factorName := factor.Name()
        weight := rse.weights[factorName]
        score := factor.Calculate(vuln, asset)
        
        totalScore += score * weight
        totalWeight += weight
    }

    if totalWeight == 0 {
        return 0
    }

    return (totalScore / totalWeight) * 10 // Scale to 0-10
}

Section 2: Automated Penetration Testing Framework

// penetration-testing.go
package main

import (
    "context"
    "fmt"
    "sync"
    "time"
)

type PenetrationTestingFramework struct {
    modules         map[string]PenTestModule
    orchestrator    *TestOrchestrator
    reporting       *PenTestReportGenerator
    evidence        *EvidenceCollector
    cleanup         *CleanupManager
}

type PenTestModule interface {
    Name() string
    Description() string
    GetPhase() TestPhase
    Prerequisites() []string
    Execute(ctx context.Context, target TestTarget) (*ModuleResult, error)
    Cleanup(ctx context.Context, target TestTarget) error
}

type TestPhase string

const (
    PhaseReconnaissance TestPhase = "reconnaissance"
    PhaseScanning       TestPhase = "scanning"
    PhaseEnumeration    TestPhase = "enumeration"
    PhaseExploitation   TestPhase = "exploitation"
    PhasePostExploit    TestPhase = "post_exploitation"
    PhasePersistence    TestPhase = "persistence"
    PhasePrivEscalation TestPhase = "privilege_escalation"
    PhaseCleanup        TestPhase = "cleanup"
)

type TestTarget struct {
    ID          string            `json:"id"`
    Name        string            `json:"name"`
    Scope       []string          `json:"scope"`
    Exclusions  []string          `json:"exclusions"`
    Credentials []TestCredential  `json:"credentials"`
    Constraints TestConstraints   `json:"constraints"`
    Metadata    map[string]string `json:"metadata"`
}

type TestConstraints struct {
    MaxImpact         string    `json:"max_impact"`
    TimeWindow        TimeWindow `json:"time_window"`
    DenialOfService   bool      `json:"denial_of_service"`
    DataExtraction    bool      `json:"data_extraction"`
    NetworkDisruption bool      `json:"network_disruption"`
    SocialEngineering bool      `json:"social_engineering"`
}

type TimeWindow struct {
    Start time.Time `json:"start"`
    End   time.Time `json:"end"`
}

type ModuleResult struct {
    ModuleName   string                 `json:"module_name"`
    Phase        TestPhase              `json:"phase"`
    Success      bool                   `json:"success"`
    Findings     []Finding              `json:"findings"`
    Evidence     []Evidence             `json:"evidence"`
    Impact       string                 `json:"impact"`
    Risk         string                 `json:"risk"`
    Remediation  []string               `json:"remediation"`
    Duration     time.Duration          `json:"duration"`
    Metadata     map[string]interface{} `json:"metadata"`
}

type Finding struct {
    ID          string    `json:"id"`
    Title       string    `json:"title"`
    Description string    `json:"description"`
    Severity    string    `json:"severity"`
    Category    string    `json:"category"`
    OWASP       string    `json:"owasp,omitempty"`
    CWE         string    `json:"cwe,omitempty"`
    CVE         string    `json:"cve,omitempty"`
    Impact      string    `json:"impact"`
    Likelihood  string    `json:"likelihood"`
    Risk        string    `json:"risk"`
    Evidence    []string  `json:"evidence"`
    PoC         string    `json:"poc,omitempty"`
    Remediation string    `json:"remediation"`
    References  []string  `json:"references"`
    Timestamp   time.Time `json:"timestamp"`
}

// Network Reconnaissance Module
type NetworkReconModule struct {
    tools map[string]ReconTool
}

type ReconTool interface {
    Name() string
    Execute(ctx context.Context, target string) ([]ReconResult, error)
}

type NmapTool struct{}

func (nt *NmapTool) Name() string {
    return "nmap"
}

func (nt *NmapTool) Execute(ctx context.Context, target string) ([]ReconResult, error) {
    // Execute nmap scan
    cmd := exec.CommandContext(ctx, "nmap", 
        "-sS", "-sV", "-O", "--script", "default,discovery",
        "-oX", "-", target)
    
    output, err := cmd.Output()
    if err != nil {
        return nil, fmt.Errorf("nmap failed: %v", err)
    }

    // Parse nmap XML output
    return nt.parseNmapOutput(output)
}

func (nt *NmapTool) parseNmapOutput(output []byte) ([]ReconResult, error) {
    var results []ReconResult
    
    // Parse XML and extract host information, ports, services
    // Implementation would use XML parsing to extract structured data
    
    return results, nil
}

type DNSReconTool struct{}

func (drt *DNSReconTool) Name() string {
    return "dns_recon"
}

func (drt *DNSReconTool) Execute(ctx context.Context, target string) ([]ReconResult, error) {
    var results []ReconResult
    
    // DNS enumeration techniques
    results = append(results, drt.performDNSEnumeration(ctx, target)...)
    results = append(results, drt.performSubdomainEnumeration(ctx, target)...)
    results = append(results, drt.performDNSZoneTransfer(ctx, target)...)
    
    return results, nil
}

func (nrm *NetworkReconModule) Name() string {
    return "network_reconnaissance"
}

func (nrm *NetworkReconModule) GetPhase() TestPhase {
    return PhaseReconnaissance
}

func (nrm *NetworkReconModule) Execute(ctx context.Context, target TestTarget) (*ModuleResult, error) {
    result := &ModuleResult{
        ModuleName: nrm.Name(),
        Phase:      nrm.GetPhase(),
        Findings:   []Finding{},
        Evidence:   []Evidence{},
    }

    startTime := time.Now()

    for _, scope := range target.Scope {
        for _, tool := range nrm.tools {
            reconResults, err := tool.Execute(ctx, scope)
            if err != nil {
                continue // Log error but continue with other tools
            }

            // Convert recon results to findings
            for _, reconResult := range reconResults {
                finding := nrm.convertToFinding(reconResult)
                result.Findings = append(result.Findings, finding)
            }
        }
    }

    result.Duration = time.Since(startTime)
    result.Success = len(result.Findings) > 0

    return result, nil
}

// Web Application Testing Module
type WebAppTestModule struct {
    tools map[string]WebTestTool
}

type WebTestTool interface {
    Name() string
    Execute(ctx context.Context, target string) ([]WebTestResult, error)
}

type BurpSuiteTool struct {
    endpoint string
    apiKey   string
}

func (bst *BurpSuiteTool) Name() string {
    return "burp_suite"
}

func (bst *BurpSuiteTool) Execute(ctx context.Context, target string) ([]WebTestResult, error) {
    // Use Burp Suite API to perform automated scans
    scanConfig := map[string]interface{}{
        "scan_configurations": []map[string]interface{}{
            {
                "name": "Audit coverage - maximum",
                "type": "NamedConfiguration",
            },
        },
        "application_logins": []map[string]interface{}{},
        "urls": []string{target},
    }

    // Create scan task
    taskID, err := bst.createScanTask(ctx, scanConfig)
    if err != nil {
        return nil, err
    }

    // Wait for completion and get results
    return bst.getScanResults(ctx, taskID)
}

type OWASPZAPTool struct {
    endpoint string
    apiKey   string
}

func (ozt *OWASPZAPTool) Name() string {
    return "owasp_zap"
}

func (ozt *OWASPZAPTool) Execute(ctx context.Context, target string) ([]WebTestResult, error) {
    // Use OWASP ZAP API for automated scanning
    
    // Spider the application
    if err := ozt.spiderTarget(ctx, target); err != nil {
        return nil, err
    }

    // Active scan
    scanID, err := ozt.activeScan(ctx, target)
    if err != nil {
        return nil, err
    }

    // Wait for completion
    if err := ozt.waitForScanCompletion(ctx, scanID); err != nil {
        return nil, err
    }

    // Get results
    return ozt.getAlerts(ctx)
}

func (watm *WebAppTestModule) Execute(ctx context.Context, target TestTarget) (*ModuleResult, error) {
    result := &ModuleResult{
        ModuleName: watm.Name(),
        Phase:      PhaseExploitation,
        Findings:   []Finding{},
    }

    for _, scope := range target.Scope {
        if !watm.isWebTarget(scope) {
            continue
        }

        for _, tool := range watm.tools {
            webResults, err := tool.Execute(ctx, scope)
            if err != nil {
                continue
            }

            for _, webResult := range webResults {
                finding := watm.convertWebResultToFinding(webResult)
                result.Findings = append(result.Findings, finding)
            }
        }
    }

    result.Success = len(result.Findings) > 0
    return result, nil
}

// Database Testing Module
type DatabaseTestModule struct {
    injectionTests []InjectionTest
    bruteForce     *BruteForceEngine
}

type InjectionTest interface {
    Name() string
    TestURL(ctx context.Context, url string, params map[string]string) ([]InjectionResult, error)
}

type SQLInjectionTest struct{}

func (sit *SQLInjectionTest) Name() string {
    return "sql_injection"
}

func (sit *SQLInjectionTest) TestURL(ctx context.Context, url string, params map[string]string) ([]InjectionResult, error) {
    var results []InjectionResult

    // SQL injection payloads
    payloads := []string{
        "' OR '1'='1",
        "' UNION SELECT NULL--",
        "'; DROP TABLE users--",
        "' AND (SELECT COUNT(*) FROM information_schema.tables)>0--",
    }

    for param, value := range params {
        for _, payload := range payloads {
            testParams := make(map[string]string)
            for k, v := range params {
                testParams[k] = v
            }
            testParams[param] = payload

            // Test the payload
            if result := sit.testPayload(ctx, url, testParams, payload); result != nil {
                results = append(results, *result)
            }
        }
    }

    return results, nil
}

func (dtm *DatabaseTestModule) Execute(ctx context.Context, target TestTarget) (*ModuleResult, error) {
    result := &ModuleResult{
        ModuleName: dtm.Name(),
        Phase:      PhaseExploitation,
        Findings:   []Finding{},
    }

    // Perform injection tests
    for _, test := range dtm.injectionTests {
        // Implementation would test discovered web applications
        // for various injection vulnerabilities
    }

    return result, nil
}

// Test Orchestrator
type TestOrchestrator struct {
    modules []PenTestModule
    config  OrchestrationConfig
}

type OrchestrationConfig struct {
    MaxConcurrency   int           `json:"max_concurrency"`
    TimeoutPerModule time.Duration `json:"timeout_per_module"`
    ContinueOnError  bool          `json:"continue_on_error"`
    PhaseOrder       []TestPhase   `json:"phase_order"`
}

func (to *TestOrchestrator) ExecuteTest(ctx context.Context, target TestTarget) (*PenTestReport, error) {
    report := &PenTestReport{
        TestID:    generateTestID(),
        Target:    target,
        StartTime: time.Now(),
        Status:    "running",
        Phases:    make(map[TestPhase]*PhaseResult),
    }

    for _, phase := range to.config.PhaseOrder {
        phaseResult := &PhaseResult{
            Phase:     phase,
            StartTime: time.Now(),
            Modules:   []*ModuleResult{},
        }

        // Execute modules for this phase
        modules := to.getModulesForPhase(phase)
        
        var wg sync.WaitGroup
        semaphore := make(chan struct{}, to.config.MaxConcurrency)
        
        for _, module := range modules {
            wg.Add(1)
            go func(m PenTestModule) {
                defer wg.Done()
                semaphore <- struct{}{}
                defer func() { <-semaphore }()

                moduleCtx, cancel := context.WithTimeout(ctx, to.config.TimeoutPerModule)
                defer cancel()

                result, err := m.Execute(moduleCtx, target)
                if err != nil && !to.config.ContinueOnError {
                    return
                }

                if result != nil {
                    phaseResult.Modules = append(phaseResult.Modules, result)
                }
            }(module)
        }

        wg.Wait()
        
        phaseResult.EndTime = time.Now()
        phaseResult.Duration = phaseResult.EndTime.Sub(phaseResult.StartTime)
        report.Phases[phase] = phaseResult
    }

    report.EndTime = time.Now()
    report.Duration = report.EndTime.Sub(report.StartTime)
    report.Status = "completed"

    // Generate executive summary
    report.ExecutiveSummary = to.generateExecutiveSummary(report)

    return report, nil
}

func (to *TestOrchestrator) getModulesForPhase(phase TestPhase) []PenTestModule {
    var modules []PenTestModule
    for _, module := range to.modules {
        if module.GetPhase() == phase {
            modules = append(modules, module)
        }
    }
    return modules
}

type PenTestReport struct {
    TestID           string                   `json:"test_id"`
    Target           TestTarget               `json:"target"`
    StartTime        time.Time                `json:"start_time"`
    EndTime          time.Time                `json:"end_time"`
    Duration         time.Duration            `json:"duration"`
    Status           string                   `json:"status"`
    Phases           map[TestPhase]*PhaseResult `json:"phases"`
    ExecutiveSummary ExecutiveSummary         `json:"executive_summary"`
    Recommendations  []Recommendation         `json:"recommendations"`
    RiskMatrix       RiskMatrix               `json:"risk_matrix"`
}

type PhaseResult struct {
    Phase     TestPhase       `json:"phase"`
    StartTime time.Time       `json:"start_time"`
    EndTime   time.Time       `json:"end_time"`
    Duration  time.Duration   `json:"duration"`
    Modules   []*ModuleResult `json:"modules"`
}

type ExecutiveSummary struct {
    TotalFindings    int            `json:"total_findings"`
    CriticalFindings int            `json:"critical_findings"`
    HighFindings     int            `json:"high_findings"`
    MediumFindings   int            `json:"medium_findings"`
    LowFindings      int            `json:"low_findings"`
    RiskScore        float64        `json:"risk_score"`
    KeyFindings      []Finding      `json:"key_findings"`
    BusinessImpact   string         `json:"business_impact"`
    Overview         string         `json:"overview"`
}

This comprehensive vulnerability management and penetration testing guide provides enterprise-grade automation frameworks for continuous security assessment, risk prioritization, and remediation workflows. Organizations should adapt these implementations to their specific security requirements while maintaining compliance with testing standards and regulatory mandates.