Usage of weak encryption algorithm (RC4)

• Rule ID: ruby_lang_weak_encryption_rc4
• Languages: ruby
• Source: weak_encryption_rc4.yml

Description

Using the RC4 encryption algorithm exposes your data to security risks. RC4 is outdated and has known vulnerabilities that can lead to data breaches.

Remediations

• Do not use RC4 for encrypting data. Its vulnerabilities make it an insecure option for protecting sensitive information.

  RC4.new("weak password encryption") # unsafe

• Do use stronger, more secure encryption algorithms like bcrypt for handling sensitive data securely.

  BCrypt::Password.create('iLOVEdogs123')

References

• BCrypt Explained

Associated CWE

• CWE-327: Use of a Broken or Risky Cryptographic Algorithm

OWASP Top 10

• A02:2021 - Cryptographic Failures

Configuration

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

bearer scan /path/to/your-project/ --skip-rule=ruby_lang_weak_encryption_rc4

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

bearer scan /path/to/your-project/ --only-rule=ruby_lang_weak_encryption_rc4