Demo Secrets Management Audit

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Scope and quick checklist

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Example prompts and audit orchestration

• Run repository-wide keyword search and secret scanners.
• For each candidate finding, extract file paths and line ranges (evidence).
• Produce a risk score (0–10), top prioritized fixes, and a checklist diff (Pass/Fail/NA).
• Provide safe, non-destructive PoC (where necessary) and remediation snippets for developers.

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What the audit looks for (high level)

• Hard-coded secrets: API keys, DB credentials, JWT secrets, encryption keys.
• Environment variables: are secrets only in env vars and is .env tracked in git?
• Rotation: ability to rotate and revoke tokens, API keys, and DB credentials.
• Encryption management: use of salts, KDF parameters (bcrypt/Argon2), and secure key storage.
• Startup checks: validations preventing default dev/test secrets from being used in production.

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Repository scan highlights (example output)

• Found tracked .env file in repo.
• Found default JWT secret placeholder: JWT_SECRET=your_jwt_secret_key_here.
• Found DB credential placeholders: DB_USER=your_db_user, DB_PASSWORD=your_db_password.
• No evidence of secret rotation mechanisms or CI secret scanning configured.
• Password hashing may be using low bcrypt cost parameter.

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Key findings (summary)

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Evidence and examples

1. Placeholder JWT secret present

• Evidence: .env — contains JWT_SECRET=your_jwt_secret_key_here
• Evidence: routes/auth.js (or equivalent) references process.env.JWT_SECRET

2. .env tracked in git

• Evidence: Repository index lists .env as a tracked file and .gitignore does not exclude it

3. Database credentials in plain text

• Evidence: .env contains DB_USER=your_db_user, DB_PASSWORD=your_db_password
• Evidence: config/database.js reads these env vars directly

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Proof-of-concept — JWT forgery with known placeholder secret

// PoC: Forge a JWT when secret is the known placeholder
const jwt = require('jsonwebtoken');

const forgedToken = jwt.sign(
  { userId: 1, email: 'admin@example.com' },
  'your_jwt_secret_key_here' // Known default secret from repo placeholder
);

console.log('Forged token:', forgedToken);

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Quick remediation commands

# Remove .env from index, keep local file, and add to .gitignore
git rm --cached .env
echo ".env" >> .gitignore
git add .gitignore
git commit -m "Remove .env from repo and add to .gitignore"

# Generate a 64-byte hex secret with Node
node -e "console.log(require('crypto').randomBytes(64).toString('hex'))"

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Recommended code-level remediations (concrete, minimal fixes)

1. Improve bcrypt hashing rounds (when hashing new passwords)

// bcrypt: set appropriate cost factor
const bcrypt = require('bcrypt');

const saltRounds = 12; // Minimum recommended today; increase over time
async function hashPassword(password) {
  return await bcrypt.hash(password, saltRounds);
}

2. Enforce secure secrets at application startup (fail fast in production)

// Add early validation in server startup (e.g., server.js or app.js)
if (process.env.NODE_ENV === 'production') {
  if (!process.env.JWT_SECRET || process.env.JWT_SECRET.length < 64) {
    throw new Error('Production requires a secure JWT_SECRET (64+ chars)');
  }

  if (!process.env.DB_PASSWORD || process.env.DB_PASSWORD === 'your_db_password') {
    throw new Error('Production requires secure database credentials');
  }
}

3. Use a secret manager instead of commit-stored .env (defense-in-depth)

• Migrate secrets to managed stores: AWS Secrets Manager, Azure Key Vault, or HashiCorp Vault.
• Pattern: fetch secrets at startup via the provider SDK and inject into config, avoiding storing them in repo or plaintext files.

4. Add secret rotation and revocation for tokens

• Implement refresh tokens with server-side revocation (e.g., store refresh token ID and allow revocation).
• Consider short-lived access tokens and a revocation/blacklist mechanism for immediate invalidation.

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Prioritized remediation plan

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Defense-in-depth recommendations

• Prefer managed secrets stores over file-based secrets.
• Use different credentials per environment (dev/staging/prod) and enforce least privilege.
• Rotate secrets on a schedule and immediately after any suspected exposure.
• Implement CI checks to block commits containing secrets and enable repository scanning.

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Compliance and risk

• PCI DSS
• GDPR

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Example consolidated issue report format (for each finding)

• Title
• Severity (Critical/High/Medium/Low)
• CWE (if applicable)
• Evidence (file, function, line ranges)
• Why it matters
• Exploitability notes / safe PoC
• Remediation (precise code/config fix)

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Final notes

• AWS Secrets Manager
• Azure Key Vault
• HashiCorp Vault
• GitHub secret scanning
• TruffleHog
• git-secrets
• Kubernetes Secrets best practices