Initial commit

skills/offsec/network-netcat/assets/.gitkeep

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+# Assets Directory
+
+Place files that will be used in the output Claude produces:
+- Templates
+- Configuration files
+- Images/logos
+- Boilerplate code
+
+These files are NOT loaded into context but copied/modified in output.

skills/offsec/network-netcat/assets/ci-config-template.yml

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+# Security-Enhanced CI/CD Pipeline Template
+#
+# This template demonstrates security best practices for CI/CD pipelines.
+# Adapt this template to your specific security tool and workflow needs.
+#
+# Key Security Features:
+# - SAST (Static Application Security Testing)
+# - Dependency vulnerability scanning
+# - Secrets detection
+# - Infrastructure-as-Code security scanning
+# - Container image scanning
+# - Security artifact uploading for compliance
+
+name: Security Scan Pipeline
+
+on:
+  push:
+    branches: [main, develop]
+  pull_request:
+    branches: [main, develop]
+  schedule:
+    # Run weekly security scans on Sunday at 2 AM UTC
+    - cron: '0 2 * * 0'
+  workflow_dispatch:  # Allow manual trigger
+
+# Security: Restrict permissions to minimum required
+permissions:
+  contents: read
+  security-events: write  # For uploading SARIF results
+  pull-requests: write    # For commenting on PRs
+
+env:
+  # Configuration
+  SECURITY_SCAN_FAIL_ON: 'critical,high'  # Fail build on these severities
+  REPORT_DIR: 'security-reports'
+
+jobs:
+  # Job 1: Static Application Security Testing (SAST)
+  sast-scan:
+    name: SAST Security Scan
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0  # Full history for better analysis
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+
+      - name: Run SAST Scanner
+        run: |
+          # Example: Using Semgrep for SAST
+          pip install semgrep
+          semgrep --config=auto \
+            --json \
+            --output ${{ env.REPORT_DIR }}/sast-results.json \
+            . || true
+
+          # Alternative: Bandit for Python projects
+          # pip install bandit
+          # bandit -r . -f json -o ${{ env.REPORT_DIR }}/bandit-results.json
+
+      - name: Process SAST Results
+        run: |
+          # Parse results and fail on critical/high severity
+          python3 -c "
+          import json
+          import sys
+
+          with open('${{ env.REPORT_DIR }}/sast-results.json') as f:
+              results = json.load(f)
+
+          critical = len([r for r in results.get('results', []) if r.get('extra', {}).get('severity') == 'ERROR'])
+          high = len([r for r in results.get('results', []) if r.get('extra', {}).get('severity') == 'WARNING'])
+
+          print(f'Critical findings: {critical}')
+          print(f'High findings: {high}')
+
+          if critical > 0:
+              print('❌ Build failed: Critical security issues found')
+              sys.exit(1)
+          elif high > 0:
+              print('⚠️  Warning: High severity issues found')
+              # Optionally fail on high severity
+              # sys.exit(1)
+          else:
+              print('✅ No critical security issues found')
+          "
+
+      - name: Upload SAST Results
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: sast-results
+          path: ${{ env.REPORT_DIR }}/sast-results.json
+          retention-days: 30
+
+  # Job 2: Dependency Vulnerability Scanning
+  dependency-scan:
+    name: Dependency Vulnerability Scan
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+
+      - name: Scan Python Dependencies
+        if: hashFiles('requirements.txt') != ''
+        run: |
+          pip install safety
+          safety check \
+            --json \
+            --output ${{ env.REPORT_DIR }}/safety-results.json \
+            || true
+
+      - name: Scan Node Dependencies
+        if: hashFiles('package.json') != ''
+        run: |
+          npm audit --json > ${{ env.REPORT_DIR }}/npm-audit.json || true
+
+      - name: Process Dependency Results
+        run: |
+          # Check for critical vulnerabilities
+          if [ -f "${{ env.REPORT_DIR }}/safety-results.json" ]; then
+            critical_count=$(python3 -c "import json; data=json.load(open('${{ env.REPORT_DIR }}/safety-results.json')); print(len([v for v in data.get('vulnerabilities', []) if v.get('severity', '').lower() == 'critical']))")
+            echo "Critical vulnerabilities: $critical_count"
+            if [ "$critical_count" -gt "0" ]; then
+              echo "❌ Build failed: Critical vulnerabilities in dependencies"
+              exit 1
+            fi
+          fi
+
+      - name: Upload Dependency Scan Results
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: dependency-scan-results
+          path: ${{ env.REPORT_DIR }}/
+          retention-days: 30
+
+  # Job 3: Secrets Detection
+  secrets-scan:
+    name: Secrets Detection
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0  # Full history to scan all commits
+
+      - name: Run Gitleaks
+        uses: gitleaks/gitleaks-action@v2
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITLEAKS_ENABLE_SUMMARY: true
+
+      - name: Alternative - TruffleHog Scan
+        if: false  # Set to true to enable
+        run: |
+          pip install truffleHog
+          trufflehog --json --regex --entropy=True . \
+            > ${{ env.REPORT_DIR }}/trufflehog-results.json || true
+
+      - name: Upload Secrets Scan Results
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: secrets-scan-results
+          path: ${{ env.REPORT_DIR }}/
+          retention-days: 30
+
+  # Job 4: Container Image Scanning
+  container-scan:
+    name: Container Image Security Scan
+    runs-on: ubuntu-latest
+    if: hashFiles('Dockerfile') != ''
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Build Docker Image
+        run: |
+          docker build -t app:${{ github.sha }} .
+
+      - name: Run Trivy Scanner
+        uses: aquasecurity/trivy-action@master
+        with:
+          image-ref: app:${{ github.sha }}
+          format: 'sarif'
+          output: '${{ env.REPORT_DIR }}/trivy-results.sarif'
+          severity: 'CRITICAL,HIGH'
+
+      - name: Upload Trivy Results to GitHub Security
+        if: always()
+        uses: github/codeql-action/upload-sarif@v3
+        with:
+          sarif_file: '${{ env.REPORT_DIR }}/trivy-results.sarif'
+
+      - name: Upload Container Scan Results
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: container-scan-results
+          path: ${{ env.REPORT_DIR }}/
+          retention-days: 30
+
+  # Job 5: Infrastructure-as-Code Security Scanning
+  iac-scan:
+    name: IaC Security Scan
+    runs-on: ubuntu-latest
+    if: hashFiles('**/*.tf', '**/*.yaml', '**/*.yml') != ''
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Run Checkov
+        run: |
+          pip install checkov
+          checkov -d . \
+            --output json \
+            --output-file ${{ env.REPORT_DIR }}/checkov-results.json \
+            --quiet \
+            || true
+
+      - name: Run tfsec (for Terraform)
+        if: hashFiles('**/*.tf') != ''
+        run: |
+          curl -s https://raw.githubusercontent.com/aquasecurity/tfsec/master/scripts/install_linux.sh | bash
+          tfsec . \
+            --format json \
+            --out ${{ env.REPORT_DIR }}/tfsec-results.json \
+            || true
+
+      - name: Process IaC Results
+        run: |
+          # Fail on critical findings
+          if [ -f "${{ env.REPORT_DIR }}/checkov-results.json" ]; then
+            critical_count=$(python3 -c "import json; data=json.load(open('${{ env.REPORT_DIR }}/checkov-results.json')); print(data.get('summary', {}).get('failed', 0))")
+            echo "Failed checks: $critical_count"
+            if [ "$critical_count" -gt "0" ]; then
+              echo "⚠️  Warning: IaC security issues found"
+              # Optionally fail the build
+              # exit 1
+            fi
+          fi
+
+      - name: Upload IaC Scan Results
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: iac-scan-results
+          path: ${{ env.REPORT_DIR }}/
+          retention-days: 30
+
+  # Job 6: Security Report Generation and Notification
+  security-report:
+    name: Generate Security Report
+    runs-on: ubuntu-latest
+    needs: [sast-scan, dependency-scan, secrets-scan]
+    if: always()
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Download All Scan Results
+        uses: actions/download-artifact@v4
+        with:
+          path: all-results/
+
+      - name: Generate Consolidated Report
+        run: |
+          # Consolidate all security scan results
+          mkdir -p consolidated-report
+
+          cat > consolidated-report/security-summary.md << 'EOF'
+          # Security Scan Summary
+
+          **Scan Date**: $(date -u +"%Y-%m-%d %H:%M:%S UTC")
+          **Commit**: ${{ github.sha }}
+          **Branch**: ${{ github.ref_name }}
+
+          ## Scan Results
+
+          ### SAST Scan
+          See artifacts: `sast-results`
+
+          ### Dependency Scan
+          See artifacts: `dependency-scan-results`
+
+          ### Secrets Scan
+          See artifacts: `secrets-scan-results`
+
+          ### Container Scan
+          See artifacts: `container-scan-results`
+
+          ### IaC Scan
+          See artifacts: `iac-scan-results`
+
+          ---
+
+          For detailed results, download scan artifacts from this workflow run.
+          EOF
+
+      - name: Comment on PR (if applicable)
+        if: github.event_name == 'pull_request'
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const fs = require('fs');
+            const report = fs.readFileSync('consolidated-report/security-summary.md', 'utf8');
+
+            github.rest.issues.createComment({
+              issue_number: context.issue.number,
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              body: report
+            });
+
+      - name: Upload Consolidated Report
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: consolidated-security-report
+          path: consolidated-report/
+          retention-days: 90
+
+# Security Best Practices Demonstrated:
+#
+# 1. ✅ Minimal permissions (principle of least privilege)
+# 2. ✅ Multiple security scan types (defense in depth)
+# 3. ✅ Fail-fast on critical findings
+# 4. ✅ Secrets detection across full git history
+# 5. ✅ Container image scanning before deployment
+# 6. ✅ IaC scanning for misconfigurations
+# 7. ✅ Artifact retention for compliance audit trail
+# 8. ✅ SARIF format for GitHub Security integration
+# 9. ✅ Scheduled scans for continuous monitoring
+# 10. ✅ PR comments for developer feedback
+#
+# Compliance Mappings:
+# - SOC 2: CC6.1, CC6.6, CC7.2 (Security monitoring and logging)
+# - PCI-DSS: 6.2, 6.5 (Secure development practices)
+# - NIST: SA-11 (Developer Security Testing)
+# - OWASP: Integrated security testing throughout SDLC

skills/offsec/network-netcat/assets/rule-template.yaml

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+# Security Rule Template
+#
+# This template demonstrates how to structure security rules/policies.
+# Adapt this template to your specific security tool (Semgrep, OPA, etc.)
+#
+# Rule Structure Best Practices:
+# - Clear rule ID and metadata
+# - Severity classification
+# - Framework mappings (OWASP, CWE)
+# - Remediation guidance
+# - Example vulnerable and fixed code
+
+rules:
+  # Example Rule 1: SQL Injection Detection
+  - id: sql-injection-string-concatenation
+    metadata:
+      name: "SQL Injection via String Concatenation"
+      description: "Detects potential SQL injection vulnerabilities from string concatenation in SQL queries"
+      severity: "HIGH"
+      category: "security"
+      subcategory: "injection"
+
+      # Security Framework Mappings
+      owasp:
+        - "A03:2021 - Injection"
+      cwe:
+        - "CWE-89: SQL Injection"
+      mitre_attack:
+        - "T1190: Exploit Public-Facing Application"
+
+      # Compliance Standards
+      compliance:
+        - "PCI-DSS 6.5.1: Injection flaws"
+        - "NIST 800-53 SI-10: Information Input Validation"
+
+      # Confidence and Impact
+      confidence: "HIGH"
+      likelihood: "HIGH"
+      impact: "HIGH"
+
+      # References
+      references:
+        - "https://owasp.org/www-community/attacks/SQL_Injection"
+        - "https://cwe.mitre.org/data/definitions/89.html"
+        - "https://cheatsheetseries.owasp.org/cheatsheets/SQL_Injection_Prevention_Cheat_Sheet.html"
+
+    # Languages this rule applies to
+    languages:
+      - python
+      - javascript
+      - java
+      - go
+
+    # Detection Pattern (example using Semgrep-style syntax)
+    pattern-either:
+      - pattern: |
+          cursor.execute($SQL + $VAR)
+      - pattern: |
+          cursor.execute(f"... {$VAR} ...")
+      - pattern: |
+          cursor.execute("..." + $VAR + "...")
+
+    # What to report when found
+    message: |
+      Potential SQL injection vulnerability detected. SQL query is constructed using
+      string concatenation or f-strings with user input. This allows attackers to
+      inject malicious SQL code.
+
+      Use parameterized queries instead:
+      - Python: cursor.execute("SELECT * FROM users WHERE id = ?", (user_id,))
+      - JavaScript: db.query("SELECT * FROM users WHERE id = $1", [userId])
+
+      See: https://owasp.org/www-community/attacks/SQL_Injection
+
+    # Suggested fix (auto-fix if supported)
+    fix: |
+      Use parameterized queries with placeholders
+
+    # Example vulnerable code
+    examples:
+      - vulnerable: |
+          # Vulnerable: String concatenation
+          user_id = request.GET['id']
+          query = "SELECT * FROM users WHERE id = " + user_id
+          cursor.execute(query)
+
+      - fixed: |
+          # Fixed: Parameterized query
+          user_id = request.GET['id']
+          query = "SELECT * FROM users WHERE id = ?"
+          cursor.execute(query, (user_id,))
+
+  # Example Rule 2: Hardcoded Secrets Detection
+  - id: hardcoded-secret-credential
+    metadata:
+      name: "Hardcoded Secret or Credential"
+      description: "Detects hardcoded secrets, API keys, passwords, or tokens in source code"
+      severity: "CRITICAL"
+      category: "security"
+      subcategory: "secrets"
+
+      owasp:
+        - "A07:2021 - Identification and Authentication Failures"
+      cwe:
+        - "CWE-798: Use of Hard-coded Credentials"
+        - "CWE-259: Use of Hard-coded Password"
+
+      compliance:
+        - "PCI-DSS 8.2.1: Use of strong cryptography"
+        - "SOC 2 CC6.1: Logical access controls"
+        - "GDPR Article 32: Security of processing"
+
+      confidence: "MEDIUM"
+      likelihood: "HIGH"
+      impact: "CRITICAL"
+
+      references:
+        - "https://cwe.mitre.org/data/definitions/798.html"
+        - "https://owasp.org/www-community/vulnerabilities/Use_of_hard-coded_password"
+
+    languages:
+      - python
+      - javascript
+      - java
+      - go
+      - ruby
+
+    pattern-either:
+      - pattern: |
+          password = "..."
+      - pattern: |
+          api_key = "..."
+      - pattern: |
+          secret = "..."
+      - pattern: |
+          token = "..."
+
+    pattern-not: |
+      $VAR = ""
+
+    message: |
+      Potential hardcoded secret detected. Hardcoding credentials in source code
+      is a critical security vulnerability that can lead to unauthorized access
+      if the code is exposed.
+
+      Use environment variables or a secrets management system instead:
+      - Python: os.environ.get('API_KEY')
+      - Node.js: process.env.API_KEY
+      - Secrets Manager: AWS Secrets Manager, HashiCorp Vault, etc.
+
+      See: https://cwe.mitre.org/data/definitions/798.html
+
+    examples:
+      - vulnerable: |
+          # Vulnerable: Hardcoded API key
+          api_key = "sk-1234567890abcdef"
+          api.authenticate(api_key)
+
+      - fixed: |
+          # Fixed: Environment variable
+          import os
+          api_key = os.environ.get('API_KEY')
+          if not api_key:
+              raise ValueError("API_KEY environment variable not set")
+          api.authenticate(api_key)
+
+  # Example Rule 3: XSS via Unsafe HTML Rendering
+  - id: xss-unsafe-html-rendering
+    metadata:
+      name: "Cross-Site Scripting (XSS) via Unsafe HTML"
+      description: "Detects unsafe HTML rendering that could lead to XSS vulnerabilities"
+      severity: "HIGH"
+      category: "security"
+      subcategory: "xss"
+
+      owasp:
+        - "A03:2021 - Injection"
+      cwe:
+        - "CWE-79: Cross-site Scripting (XSS)"
+        - "CWE-80: Improper Neutralization of Script-Related HTML Tags"
+
+      compliance:
+        - "PCI-DSS 6.5.7: Cross-site scripting"
+        - "NIST 800-53 SI-10: Information Input Validation"
+
+      confidence: "HIGH"
+      likelihood: "MEDIUM"
+      impact: "HIGH"
+
+      references:
+        - "https://owasp.org/www-community/attacks/xss/"
+        - "https://cwe.mitre.org/data/definitions/79.html"
+        - "https://cheatsheetseries.owasp.org/cheatsheets/Cross_Site_Scripting_Prevention_Cheat_Sheet.html"
+
+    languages:
+      - javascript
+      - typescript
+      - jsx
+      - tsx
+
+    pattern-either:
+      - pattern: |
+          dangerouslySetInnerHTML={{__html: $VAR}}
+      - pattern: |
+          innerHTML = $VAR
+
+    message: |
+      Potential XSS vulnerability detected. Setting HTML content directly from
+      user input without sanitization can allow attackers to inject malicious
+      JavaScript code.
+
+      Use one of these safe alternatives:
+      - React: Use {userInput} for automatic escaping
+      - DOMPurify: const clean = DOMPurify.sanitize(dirty);
+      - Framework-specific sanitizers
+
+      See: https://owasp.org/www-community/attacks/xss/
+
+    examples:
+      - vulnerable: |
+          // Vulnerable: Unsanitized HTML
+          function UserComment({ comment }) {
+            return <div dangerouslySetInnerHTML={{__html: comment}} />;
+          }
+
+      - fixed: |
+          // Fixed: Sanitized with DOMPurify
+          import DOMPurify from 'dompurify';
+
+          function UserComment({ comment }) {
+            const sanitized = DOMPurify.sanitize(comment);
+            return <div dangerouslySetInnerHTML={{__html: sanitized}} />;
+          }
+
+  # Example Rule 4: Insecure Cryptography
+  - id: weak-cryptographic-algorithm
+    metadata:
+      name: "Weak Cryptographic Algorithm"
+      description: "Detects use of weak or deprecated cryptographic algorithms"
+      severity: "HIGH"
+      category: "security"
+      subcategory: "cryptography"
+
+      owasp:
+        - "A02:2021 - Cryptographic Failures"
+      cwe:
+        - "CWE-327: Use of a Broken or Risky Cryptographic Algorithm"
+        - "CWE-326: Inadequate Encryption Strength"
+
+      compliance:
+        - "PCI-DSS 4.1: Use strong cryptography"
+        - "NIST 800-53 SC-13: Cryptographic Protection"
+        - "GDPR Article 32: Security of processing"
+
+      confidence: "HIGH"
+      likelihood: "MEDIUM"
+      impact: "HIGH"
+
+      references:
+        - "https://cwe.mitre.org/data/definitions/327.html"
+        - "https://owasp.org/www-project-web-security-testing-guide/latest/4-Web_Application_Security_Testing/09-Testing_for_Weak_Cryptography/"
+
+    languages:
+      - python
+      - javascript
+      - java
+
+    pattern-either:
+      - pattern: |
+          hashlib.md5(...)
+      - pattern: |
+          hashlib.sha1(...)
+      - pattern: |
+          crypto.createHash('md5')
+      - pattern: |
+          crypto.createHash('sha1')
+
+    message: |
+      Weak cryptographic algorithm detected (MD5 or SHA1). These algorithms are
+      considered cryptographically broken and should not be used for security purposes.
+
+      Use strong alternatives:
+      - For hashing: SHA-256, SHA-384, or SHA-512
+      - For password hashing: bcrypt, argon2, or PBKDF2
+      - Python: hashlib.sha256()
+      - Node.js: crypto.createHash('sha256')
+
+      See: https://cwe.mitre.org/data/definitions/327.html
+
+    examples:
+      - vulnerable: |
+          # Vulnerable: MD5 hash
+          import hashlib
+          hash_value = hashlib.md5(data).hexdigest()
+
+      - fixed: |
+          # Fixed: SHA-256 hash
+          import hashlib
+          hash_value = hashlib.sha256(data).hexdigest()
+
+# Rule Configuration
+configuration:
+  # Global settings
+  enabled: true
+  severity_threshold: "MEDIUM"  # Report findings at MEDIUM severity and above
+
+  # Performance tuning
+  max_file_size_kb: 1024
+  exclude_patterns:
+    - "test/*"
+    - "tests/*"
+    - "node_modules/*"
+    - "vendor/*"
+    - "*.min.js"
+
+  # False positive reduction
+  confidence_threshold: "MEDIUM"  # Only report findings with MEDIUM confidence or higher
+
+# Rule Metadata Schema
+# This section documents the expected structure for rules
+metadata_schema:
+  required:
+    - id: "Unique identifier for the rule (kebab-case)"
+    - name: "Human-readable rule name"
+    - description: "What the rule detects"
+    - severity: "CRITICAL | HIGH | MEDIUM | LOW | INFO"
+    - category: "security | best-practice | performance"
+
+  optional:
+    - subcategory: "Specific type (injection, xss, secrets, etc.)"
+    - owasp: "OWASP Top 10 mappings"
+    - cwe: "CWE identifier(s)"
+    - mitre_attack: "MITRE ATT&CK technique(s)"
+    - compliance: "Compliance standard references"
+    - confidence: "Detection confidence level"
+    - likelihood: "Likelihood of exploitation"
+    - impact: "Potential impact if exploited"
+    - references: "External documentation links"
+
+# Usage Instructions:
+#
+# 1. Copy this template when creating new security rules
+# 2. Update metadata fields with appropriate framework mappings
+# 3. Customize detection patterns for your tool (Semgrep, OPA, etc.)
+# 4. Provide clear remediation guidance in the message field
+# 5. Include both vulnerable and fixed code examples
+# 6. Test rules on real codebases before deployment
+#
+# Best Practices:
+# - Map to multiple frameworks (OWASP, CWE, MITRE ATT&CK)
+# - Include compliance standard references
+# - Provide actionable remediation guidance
+# - Show code examples (vulnerable vs. fixed)
+# - Tune confidence levels to reduce false positives
+# - Exclude test directories to reduce noise