Unsanitized user input in redirect

• Rule ID: javascript_express_open_redirect
• Languages: javascript
• Source: open_redirect.yml

Description

A redirect using unsanitized user input is bad practice and puts your application at greater risk of phishing attacks.

Remediations

❌ Do not use unsanitized user input when constructing URLs

✅ Instead, ensure the input is validated by using a safe list or a mapping when constructing URLs

  var map = {
    "1": "/planes",
    "2": "/trains",
    "3": "/automobiles",
  }

  res.redirect(map[req.body.transport])

Resources

• OWASP open redirect

Associated CWE

• CWE-601: URL Redirection to Untrusted Site ('Open Redirect')

OWASP Top 10

• A01:2021 - Broken Access Control

Configuration

To skip this rule during a scan, use the following flag

bearer scan /path/to/your-project/ --skip-rule=javascript_express_open_redirect

To run only this rule during a scan, use the following flag

bearer scan /path/to/your-project/ --only-rule=javascript_express_open_redirect