Snyk MCP Security Vulnerability Detection

This guide introduces how to use Snyk MCP to build intelligent security vulnerability detection and remediation systems, enabling ByteBuddy to automate security workflows.

Overview

Snyk MCP provides deep integration with the Snyk security platform, allowing ByteBuddy to:

• Automate security vulnerability scanning
• Generate intelligent vulnerability fix suggestions
• Check license compliance
• Manage security policies

Configuration

1. Install Snyk MCP

npm install -g snyk-mcp-server

2. Configure ByteBuddy

{
  "mcpServers": {
    "snyk": {
      "command": "node",
      "args": ["snyk-mcp-server"],
      "env": {
        "SNYK_TOKEN": "your-snyk-token",
        "SNYK_ORG": "your-organization-id",
        "SNYK_INTEGRATION_ID": "your-integration-id"
      }
    }
  }
}

Use Cases

Scenario 1: Automated Security Scanning

// Automated security scanning
class SecurityScanner {
  async scanRepository(repoInfo: any) {
    // Scan code vulnerabilities
    const codeVulnerabilities = await mcp.call("snyk.codeTest", {
      org: repoInfo.orgId,
      path: repoInfo.localPath,
    });

    // Scan dependency vulnerabilities
    const dependencyVulnerabilities = await mcp.call("snyk.test", {
      org: repoInfo.orgId,
      path: repoInfo.localPath,
    });

    // Scan container vulnerabilities
    const containerVulnerabilities = await this.scanContainer(repoInfo);

    // Scan IaC vulnerabilities
    const iacVulnerabilities = await this.scanInfrastructureAsCode(repoInfo);

    // Aggregate analysis
    const securityReport = await this.generateSecurityReport({
      code: codeVulnerabilities,
      dependencies: dependencyVulnerabilities,
      containers: containerVulnerabilities,
      infrastructure: iacVulnerabilities,
    });

    return securityReport;
  }

  private async generateSecurityReport(vulnerabilities: any) {
    const analysis = {
      summary: this.calculateRiskSummary(vulnerabilities),
      criticalIssues: this.identifyCriticalIssues(vulnerabilities),
      recommendations:
        await this.generateSecurityRecommendations(vulnerabilities),
      compliance: await this.checkCompliance(vulnerabilities),
      remediationPlan: this.createRemediationPlan(vulnerabilities),
    };

    // Create GitHub Issue (if critical issues found)
    if (analysis.criticalIssues.length > 0) {
      await this.createSecurityIssue(analysis);
    }

    // Update security status
    await this.updateSecurityStatus(analysis);

    return analysis;
  }

  private async generateSecurityRecommendations(vulnerabilities: any) {
    const recommendations = [];

    // Analyze vulnerability patterns
    const patterns = this.analyzeVulnerabilityPatterns(vulnerabilities);

    for (const pattern of patterns) {
      recommendations.push({
        type: pattern.type,
        severity: pattern.severity,
        title: pattern.title,
        description: pattern.description,
        actions: pattern.actions,
        estimatedEffort: pattern.effort,
      });
    }

    return recommendations;
  }

  private createRemediationPlan(vulnerabilities: any) {
    const plan = {
      immediate: [], // Immediate fixes (critical vulnerabilities)
      shortTerm: [], // Short-term fixes (high-risk vulnerabilities)
      longTerm: [], // Long-term fixes (medium risk)
      monitoring: [], // Continuous monitoring (low-risk vulnerabilities)
    };

    // Classify by severity
    for (const category of Object.keys(vulnerabilities)) {
      for (const vuln of vulnerabilities[category]) {
        const item = {
          id: vuln.id,
          title: vuln.title,
          severity: vuln.severity,
          category: category,
          estimatedFixTime: this.estimateFixTime(vuln),
        };

        if (vuln.severity === "critical") {
          plan.immediate.push(item);
        } else if (vuln.severity === "high") {
          plan.shortTerm.push(item);
        } else if (vuln.severity === "medium") {
          plan.longTerm.push(item);
        } else {
          plan.monitoring.push(item);
        }
      }
    }

    return plan;
  }
}

Scenario 2: Intelligent Vulnerability Remediation

// Intelligent vulnerability remediation system
class VulnerabilityFixer {
  async fixVulnerability(vulnerabilityId: string, fixOptions: any) {
    // Get vulnerability details
    const vulnerability = await mcp.call("snyk.getVulnerability", {
      id: vulnerabilityId,
    });

    // Analyze fix options
    const fixAnalysis = await this.analyzeFixOptions(vulnerability);

    // Select best fix option
    const bestFix = this.selectBestFix(fixAnalysis, fixOptions);

    // Execute fix
    if (bestFix.type === "dependency_update") {
      return await this.updateDependency(bestFix);
    } else if (bestFix.type === "code_patch") {
      return await this.patchCode(bestFix);
    } else if (bestFix.type === "configuration_change") {
      return await this.updateConfiguration(bestFix);
    }
  }

  private async analyzeFixOptions(vulnerability: any) {
    const fixes = [];

    // Auto-fix options
    const autoFix = await mcp.call("snyk.getAutoFix", {
      vulnerabilityId: vulnerability.id,
    });

    if (autoFix && autoFix.isFixable) {
      fixes.push({
        type: "auto_fix",
        confidence: autoFix.confidence,
        effort: "low",
        risk: "low",
        description: autoFix.description,
      });
    }

    // Dependency update options
    const dependencyFix = await this.analyzeDependencyFix(vulnerability);
    if (dependencyFix) {
      fixes.push(dependencyFix);
    }

    // Code patch options
    const codeFix = await this.analyzeCodeFix(vulnerability);
    if (codeFix) {
      fixes.push(codeFix);
    }

    return fixes;
  }

  private async updateDependency(fix: any) {
    // Backup current configuration
    await this.backupPackageFile();

    try {
      // Update dependency version
      await mcp.call("snyk.applyDependencyFix", {
        package: fix.package,
        version: fix.targetVersion,
        file: fix.packageFile,
      });

      // Verify fix
      const verification = await this.verifyDependencyFix(fix);

      if (verification.success) {
        // Commit changes
        await this.commitFix(fix);

        return {
          success: true,
          type: "dependency_update",
          changes: verification.changes,
        };
      } else {
        // Rollback changes
        await this.rollbackPackageFile();
        return {
          success: false,
          error: verification.error,
          type: "dependency_update",
        };
      }
    } catch (error) {
      await this.rollbackPackageFile();
      return {
        success: false,
        error: error.message,
        type: "dependency_update",
      };
    }
  }

  private async patchCode(fix: any) {
    const patch = {
      files: fix.files,
      changes: fix.changes,
      test: fix.testCommand,
    };

    // Apply code patch
    for (const file of patch.files) {
      await this.applyCodePatch(file);
    }

    // Run test verification
    const testResult = await this.runTests(patch.test);

    if (testResult.success) {
      await this.commitFix(fix);
      return {
        success: true,
        type: "code_patch",
        changes: patch.changes,
      };
    } else {
      await this.revertCodePatch(patch.files);
      return {
        success: false,
        error: testResult.error,
        type: "code_patch",
      };
    }
  }
}

Scenario 3: License Compliance Checking

// License compliance checker
class LicenseComplianceChecker {
  async checkCompliance(repoInfo: any, policy: any) {
    // Scan all dependency licenses
    const licenses = await mcp.call("snyk.licenses", {
      org: repoInfo.orgId,
      path: repoInfo.localPath,
    });

    // Check compliance
    const complianceAnalysis = {
      compliant: [],
      nonCompliant: [],
      needsReview: [],
      missing: [],
    };

    for (const license of licenses) {
      const analysis = this.analyzeLicense(license, policy);

      switch (analysis.status) {
        case "compliant":
          complianceAnalysis.compliant.push(analysis);
          break;
        case "non_compliant":
          complianceAnalysis.nonCompliant.push(analysis);
          break;
        case "needs_review":
          complianceAnalysis.needsReview.push(analysis);
          break;
        case "missing":
          complianceAnalysis.missing.push(analysis);
          break;
      }
    }

    // Generate compliance report
    const report = await this.generateComplianceReport(complianceAnalysis);

    // Handle non-compliant licenses
    if (complianceAnalysis.nonCompliant.length > 0) {
      await this.handleNonCompliantLicenses(complianceAnalysis.nonCompliant);
    }

    return report;
  }

  private analyzeLicense(license: any, policy: any) {
    const allowed = policy.allowedLicenses.includes(license.name);
    const restricted = policy.restrictedLicenses.includes(license.name);
    const requiresApproval = policy.requiresApproval.includes(license.name);

    let status, recommendation;

    if (restricted) {
      status = "non_compliant";
      recommendation =
        "Must remove this dependency or replace with compliant version";
    } else if (requiresApproval) {
      status = "needs_review";
      recommendation = "Requires legal team review and approval";
    } else if (allowed) {
      status = "compliant";
      recommendation = "License compliant";
    } else {
      status = "missing";
      recommendation =
        "License information missing, requires manual confirmation";
    }

    return {
      name: license.name,
      version: license.version,
      status: status,
      recommendation: recommendation,
      risk: this.assessLicenseRisk(license.name),
      dependencies: license.dependencies,
    };
  }

  private async handleNonCompliantLicenses(nonCompliant: any[]) {
    for (const item of nonCompliant) {
      // Create GitHub Issue
      await this.createLicenseIssue(item);

      // Find alternatives
      const alternatives = await this.findAlternatives(item);

      if (alternatives.length > 0) {
        await this.createPRForAlternative(item, alternatives[0]);
      }
    }
  }

  private async findAlternatives(problematicLicense: any) {
    const alternatives = [];

    // Analyze dependency features
    const features = await this.analyzeDependencyFeatures(
      problematicLicense.dependencies,
    );

    // Search for alternative libraries
    const candidates = await this.searchAlternatives(features);

    // Evaluate candidates
    for (const candidate of candidates) {
      const evaluation = await this.evaluateAlternative(candidate, features);
      if (evaluation.score > 0.7) {
        alternatives.push(evaluation);
      }
    }

    return alternatives.sort((a, b) => b.score - a.score);
  }
}

CI/CD Integration

1: Security Gates

// Security gate system
class SecurityGate {
  async enforceSecurityGate(buildInfo: any) {
    const checks = [
      this.runSecurityScan(buildInfo),
      this.checkSecurityPolicies(buildInfo),
      this.validateCompliance(buildInfo),
      this.checkSecurityTests(buildInfo),
    ];

    const results = await Promise.allSettled(checks);

    const gateResult = {
      passed: true,
      issues: [],
      securityScore: 0,
    };

    results.forEach((result, index) => {
      const checkName = ["scan", "policies", "compliance", "tests"][index];

      if (result.status === "fulfilled") {
        if (!result.value.passed) {
          gateResult.passed = false;
          gateResult.issues.push({
            check: checkName,
            severity: result.value.severity,
            issue: result.value.issue,
            recommendation: result.value.recommendation,
          });
        }
        gateResult.securityScore += result.value.score;
      } else {
        gateResult.passed = false;
        gateResult.issues.push({
          check: checkName,
          severity: "high",
          issue: "Check failed to execute",
          error: result.reason,
        });
      }
    });

    // If security gate fails, block deployment
    if (!gateResult.passed) {
      await this.blockDeployment(buildInfo, gateResult);
    }

    return gateResult;
  }

  private async runSecurityScan(buildInfo: any) {
    const scanner = new SecurityScanner();
    const scanResult = await scanner.scanRepository({
      orgId: buildInfo.orgId,
      localPath: buildInfo.buildPath,
    });

    const criticalIssues = scanResult.summary.critical;
    const highIssues = scanResult.summary.high;

    return {
      passed: criticalIssues === 0 && highIssues <= 2,
      score: this.calculateSecurityScore(scanResult.summary),
      severity:
        criticalIssues > 0 ? "critical" : highIssues > 2 ? "high" : "low",
      issue:
        criticalIssues > 0
          ? `Found ${criticalIssues} critical security vulnerabilities`
          : highIssues > 2
            ? `Found ${highIssues} high-risk vulnerabilities`
            : null,
      recommendation: this.generateSecurityRecommendation(scanResult),
    };
  }
}

2: Automated Remediation Workflow

# .github/workflows/security.yml
name: Security Scan and Fix
on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
  schedule:
    - cron: "0 2 * * *" # Run daily at 2 AM

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

      - name: Setup Node.js
        uses: actions/setup-node@v3
        with:
          node-version: "18"
          cache: "npm"

      - name: Install dependencies
        run: npm ci

      - name: Setup ByteBuddy
        run: |
          npm install -g bytebuddy
          bytebuddy --setup-snyk-mcp

      - name: Run Security Scan
        env:
          SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
          SNYK_ORG: ${{ secrets.SNYK_ORG }}
        run: |
          bytebuddy --snyk-scan \
            --path . \
            --format json \
            --output security-report.json

      - name: Attempt Auto Fix
        env:
          SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
          SNYK_ORG: ${{ secrets.SNYK_ORG }}
        run: |
          bytebuddy --snyk-autofix \
            --path . \
            --severity critical,high \
            --create-pr

      - name: Check Compliance
        env:
          SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
          SNYK_ORG: ${{ secrets.SNYK_ORG }}
        run: |
          bytebuddy --snyk-compliance-check \
            --policy security-policy.json \
            --fail-on-violation

Monitoring and Reporting

1: Security Dashboard

// Security monitoring dashboard
class SecurityDashboard {
  async generateDashboard(orgId: string, timeRange: string = "30d") {
    const data = {
      vulnerabilities: await this.getVulnerabilityTrends(orgId, timeRange),
      compliance: await this.getComplianceStatus(orgId),
      remediation: await this.getRemediationProgress(orgId),
      risk: await this.calculateRiskScore(orgId),
    };

    const dashboard = {
      summary: this.createExecutiveSummary(data),
      charts: this.generateCharts(data),
      alerts: this.identifyAlerts(data),
      recommendations: await this.generateStrategicRecommendations(data),
    };

    return dashboard;
  }

  private async getVulnerabilityTrends(orgId: string, timeRange: string) {
    const trends = await mcp.call("snyk.getVulnerabilityTrends", {
      org: orgId,
      timeRange: timeRange,
      granularity: "daily",
    });

    return {
      open: trends.open,
      fixed: trends.fixed,
      introduced: trends.introduced,
      bySeverity: trends.bySeverity,
      byType: trends.byType,
    };
  }

  private createExecutiveSummary(data: any) {
    const totalVulnerabilities = data.vulnerabilities.open.length;
    const criticalVulnerabilities = data.vulnerabilities.bySeverity.critical;
    const complianceScore = data.compliance.score;
    const riskScore = data.risk.overall;

    return {
      overallHealth: this.calculateOverallHealth(data),
      keyMetrics: {
        totalVulnerabilities,
        criticalVulnerabilities,
        complianceScore,
        riskScore,
      },
      status: this.determineStatus(data),
    };
  }
}

Best Practices

1: Security Policy Management

// Security policy manager
class SecurityPolicyManager {
  async createSecurityPolicy(orgId: string) {
    const policy = {
      vulnerability: {
        maxCritical: 0,
        maxHigh: 5,
        maxMedium: 20,
        autoFixAllowed: ["critical", "high"],
        requireApproval: ["critical"],
      },
      license: {
        allowedLicenses: ["MIT", "Apache-2.0", "BSD-3-Clause"],
        restrictedLicenses: ["GPL-3.0", "AGPL-3.0"],
        requiresApproval: ["LGPL-2.1", "MPL-2.0"],
      },
      code: {
        maxComplexity: 10,
        maxDuplication: 0.05,
        requireTests: true,
        minCoverage: 0.8,
      },
      deployment: {
        requireSecurityReview: true,
        autoBlockOnCritical: true,
        gracePeriod: "7d",
      },
    };

    return await mcp.call("snyk.createPolicy", {
      org: orgId,
      policy: policy,
    });
  }
}

Through Snyk MCP, ByteBuddy can provide powerful security detection and remediation capabilities, making applications more secure and reliable.