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auth.js

javascript

1
function authenticateUser(token) {
2
  if (token == process.env.SECRET_KEY) {
1 comment
Line 2
Security Expertcommented 4 days ago
🚨 Security Issue: Using loose equality (==) for authentication is dangerous. This allows type coercion attacks. Use strict equality (===) instead.
3
    return { authenticated: true };
4
  }
5
  return { authenticated: false };
6
}

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API Security Review

Authentication middleware vulnerability fix

auth-middleware.js

javascript

1
async function validateApiKey(req, res, next) {
2
  const apiKey = req.headers['x-api-key'];
3
‌
4
  if (apiKey === process.env.API_KEY) { // Direct string comparison
2 comments
Line 4
Sarah Chencommented 4 days ago
🚨 Security Issue: This direct string comparison is vulnerable to timing attacks. An attacker could potentially determine the API key through response time analysis. Consider using crypto.timingSafeEqual() for constant-time comparison.
Alex Kumarcommented 4 days ago
Good catch! Also worth adding input validation to ensure apiKey is defined before comparison.
5
    next();
6
  } else {
7
    res.status(401).json({ error: 'Invalid API key' });
8
  }
9
}

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