🔍 Vulnerability Assessment Simulator

function calculateCVSSScore(metrics) {
  // Base Score Calculation (CVSS v3.1)
  const impact = calculateImpact(metrics);
  const exploitability = calculateExploitability(metrics);

  if (impact <= 0) return 0;

  let baseScore;
  if (metrics.scope === 'UNCHANGED') {
    baseScore = Math.min(impact + exploitability, 10);
  } else {
    baseScore = Math.min(1.08 * (impact + exploitability), 10);
  }

  return roundUp(baseScore);
}

function calculateImpact(metrics) {
  const ISS = 1 - ((1 - metrics.C) * (1 - metrics.I) * (1 - metrics.A));

  if (metrics.scope === 'UNCHANGED') {
    return 6.42 * ISS;
  } else {
    return 7.52 * (ISS - 0.029) - 3.25 * Math.pow(ISS - 0.02, 15);
  }
}

function calculateExploitability(metrics) {
  return 8.22 * metrics.AV * metrics.AC * metrics.PR * metrics.UI;
}

// Risk Prioritization Algorithm
function prioritizeVulnerabilities(vulnerabilities) {
  return vulnerabilities
    .map(vuln => ({
      ...vuln,
      riskScore: calculateRiskScore(vuln)
    }))
    .sort((a, b) => b.riskScore - a.riskScore);
}

function calculateRiskScore(vulnerability) {
  const cvssWeight = 0.4;
  const exploitWeight = 0.3;
  const assetWeight = 0.2;
  const complianceWeight = 0.1;

  return (
    vulnerability.cvss * cvssWeight +
    vulnerability.exploitability * exploitWeight +
    vulnerability.assetCriticality * assetWeight +
    vulnerability.complianceImpact * complianceWeight
  );
}

┌─────────────────────────────────────────────────────────┐
│              Vulnerability Assessment Lifecycle          │
└─────────────────────────────────────────────────────────┘

1. DISCOVERY PHASE
   ┌─────────────────┐
   │ Asset Discovery │ → Identify all systems, applications, networks
   └────────┬────────┘
            │
   ┌────────▼────────┐
   │ Scan Scheduling │ → Configure automated and manual scans
   └────────┬────────┘
            │
   ┌────────▼────────┐
   │ Vulnerability   │ → Execute scanning tools
   │    Scanning     │   - Static Analysis (SAST)
   └────────┬────────┘   - Dynamic Analysis (DAST)
            │            - Dependency Checking
            │            - Configuration Auditing

2. ANALYSIS PHASE
   ┌────────▼────────┐
   │ Data Collection │ → Aggregate scan results
   └────────┬────────┘
            │
   ┌────────▼────────┐
   │  CVE Matching   │ → Match with vulnerability databases
   └────────┬────────┘
            │
   ┌────────▼────────┐
   │ False Positive  │ → Remove false positives
   │   Filtering     │
   └────────┬────────┘
            │
   ┌────────▼────────┐
   │ CVSS Scoring    │ → Calculate severity scores
   └────────┬────────┘

3. PRIORITIZATION PHASE
   ┌────────▼────────┐
   │ Risk Assessment │ → Evaluate business impact
   └────────┬────────┘
            │
   ┌────────▼────────┐
   │ Exploit Check   │ → Verify exploit availability
   └────────┬────────┘
            │
   ┌────────▼────────┐
   │ Prioritization  │ → Rank by risk score
   └────────┬────────┘

4. REMEDIATION PHASE
   ┌────────▼────────┐
   │ Ticket Creation │ → Generate remediation tasks
   └────────┬────────┘
            │
   ┌────────▼────────┐
   │ Patch/Fix Apply │ → Implement security fixes
   └────────┬────────┘
            │
   ┌────────▼────────┐
   │  Verification   │ → Re-scan to confirm fix
   └────────┬────────┘
            │
   ┌────────▼────────┐
   │    Closure      │ → Close vulnerability record
   └─────────────────┘

// Scan Request
POST /api/v1/vulnerability/scan
{
  "scanId": "SCAN-2025-001",
  "targetAssets": ["WEB-APP-001", "API-SRV-002"],
  "scanType": "COMPREHENSIVE",
  "scanners": ["SAST", "DAST", "SCA"],
  "schedule": "IMMEDIATE",
  "notifyOn": ["CRITICAL", "HIGH"]
}

// Scan Response
{
  "scanId": "SCAN-2025-001",
  "status": "RUNNING",
  "startTime": "2025-12-25T10:00:00Z",
  "estimatedCompletion": "2025-12-25T11:30:00Z",
  "progress": 45.2,
  "vulnerabilitiesFound": 12
}

// Vulnerability Report
{
  "reportId": "VULN-REPORT-2025-001",
  "scanId": "SCAN-2025-001",
  "summary": {
    "total": 12,
    "critical": 1,
    "high": 4,
    "medium": 5,
    "low": 2
  },
  "vulnerabilities": [...]
}

// NVD API Integration
class NVDIntegration {
  constructor(apiKey) {
    this.baseUrl = 'https://services.nvd.nist.gov/rest/json/cves/2.0';
    this.apiKey = apiKey;
  }

  async getCVEDetails(cveId) {
    const response = await fetch(
      `${this.baseUrl}?cveId=${cveId}`,
      {
        headers: {
          'apiKey': this.apiKey
        }
      }
    );
    return await response.json();
  }

  async searchVulnerabilities(params) {
    const {
      keywordSearch,
      cvssV3Severity,
      lastModStartDate,
      lastModEndDate
    } = params;

    const queryParams = new URLSearchParams({
      keywordSearch,
      cvssV3Severity,
      lastModStartDate,
      lastModEndDate
    });

    const response = await fetch(
      `${this.baseUrl}?${queryParams}`,
      {
        headers: {
          'apiKey': this.apiKey
        }
      }
    );
    return await response.json();
  }
}

// SIEM Integration (Splunk)
class SIEMIntegration {
  constructor(splunkUrl, token) {
    this.splunkUrl = splunkUrl;
    this.token = token;
  }

  async sendVulnerabilityEvent(vulnerability) {
    await fetch(
      `${this.splunkUrl}/services/collector/event`,
      {
        method: 'POST',
        headers: {
          'Authorization': `Splunk ${this.token}`,
          'Content-Type': 'application/json'
        },
        body: JSON.stringify({
          event: {
            sourcetype: 'vulnerability',
            ...vulnerability
          }
        })
      }
    );
  }
}

// Ticketing System Integration (Jira)
class JiraIntegration {
  async createVulnerabilityTicket(vulnerability) {
    const ticket = {
      fields: {
        project: { key: 'SEC' },
        summary: vulnerability.title,
        description: vulnerability.description,
        issuetype: { name: 'Security Vulnerability' },
        priority: this.mapSeverityToPriority(vulnerability.severity),
        labels: ['vulnerability', vulnerability.cveId],
        customfield_cvss: vulnerability.cvssScore
      }
    };

    return await this.jiraClient.createIssue(ticket);
  }

  mapSeverityToPriority(severity) {
    const mapping = {
      'CRITICAL': { name: 'Highest' },
      'HIGH': { name: 'High' },
      'MEDIUM': { name: 'Medium' },
      'LOW': { name: 'Low' }
    };
    return mapping[severity];
  }
}

// CI/CD Pipeline Integration (GitHub Actions)
name: Security Vulnerability Scan

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
  schedule:
    - cron: '0 2 * * *'

jobs:
  vulnerability-scan:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3

      - name: Run Dependency Check
        uses: dependency-check/Dependency-Check_Action@main
        with:
          project: 'my-app'
          path: '.'
          format: 'JSON'

      - name: Run SAST Scan
        run: |
          npm install -g semgrep
          semgrep --config=auto --json > sast-results.json

      - name: Upload to WIA-SEC-018
        run: |
          curl -X POST https://api.wia-sec-018.io/v1/scans \
            -H "Authorization: Bearer ${{ secrets.WIA_API_KEY }}" \
            -F "dependencyCheck=@dependency-check-report.json" \
            -F "sastResults=@sast-results.json"

      - name: Check Vulnerability Threshold
        run: |
          python scripts/check-vuln-threshold.py \
            --critical-max 0 \
            --high-max 2 \
            --fail-on-violation

{
  "@context": [
    "https://www.w3.org/2018/credentials/v1",
    "https://wia.org/credentials/vulnerability/v1"
  ],
  "id": "https://wia.org/credentials/vulnerability/cert-001",
  "type": ["VerifiableCredential", "VulnerabilityAssessmentCertificate"],
  "issuer": {
    "id": "did:wia:security-team:12345",
    "name": "WIA Security Assessment Team"
  },
  "issuanceDate": "2025-12-25T10:00:00Z",
  "expirationDate": "2026-01-25T10:00:00Z",
  "credentialSubject": {
    "id": "did:wia:asset:web-app-001",
    "assetName": "Customer Portal",
    "assessmentType": "Comprehensive Vulnerability Assessment",
    "assessmentDate": "2025-12-25",
    "assessmentResults": {
      "totalVulnerabilities": 12,
      "criticalCount": 0,
      "highCount": 2,
      "mediumCount": 7,
      "lowCount": 3,
      "remediationStatus": "IN_PROGRESS",
      "complianceStatus": "COMPLIANT",
      "nextAssessmentDue": "2026-01-25"
    },
    "certification": {
      "standard": "WIA-SEC-018",
      "version": "1.0",
      "certificationLevel": "SILVER"
    }
  },
  "proof": {
    "type": "Ed25519Signature2020",
    "created": "2025-12-25T10:00:00Z",
    "verificationMethod": "did:wia:security-team:12345#key-1",
    "proofPurpose": "assertionMethod",
    "proofValue": "z3FXQjecWRUyeKGu...base58-encoded-signature"
  }
}

async function verifyVulnerabilityCredential(credential) {
  // Step 1: Verify credential structure
  if (!credential['@context'] || !credential.credentialSubject) {
    throw new Error('Invalid credential structure');
  }

  // Step 2: Verify issuer DID
  const issuer = await resolveIssuerDID(credential.issuer.id);
  if (!issuer) {
    throw new Error('Invalid issuer');
  }

  // Step 3: Verify cryptographic proof
  const isValid = await verifyProof(
    credential,
    credential.proof
  );
  if (!isValid) {
    throw new Error('Invalid cryptographic signature');
  }

  // Step 4: Check expiration
  const now = new Date();
  const expirationDate = new Date(credential.expirationDate);
  if (now > expirationDate) {
    throw new Error('Credential expired');
  }

  // Step 5: Verify against blockchain record
  const onChainRecord = await getBlockchainRecord(credential.id);
  if (!onChainRecord || onChainRecord.hash !== credential.proof.proofValue) {
    throw new Error('Credential not found on blockchain');
  }

  return {
    valid: true,
    issuer: issuer.name,
    subject: credential.credentialSubject.assetName,
    assessmentResults: credential.credentialSubject.assessmentResults
  };
}