Usage of weak encryption algorithm (RSA)

• Rule ID: python_lang_weak_encryption_rsa
• Languages: python
• Source: weak_encryption_rsa.yml

Description

Using a weak encryption algorithm, specifically 1024-bit RSA, compromises data security. This vulnerability can lead to unauthorized access to sensitive information.

Remediations

• Do not use 1024-bit RSA for encryption. It is no longer considered secure.

  RSA.generate(1024) # unsafe

• Do use stronger encryption algorithms to enhance data security. AES (Advanced Encryption Standard) is a recommended choice.

  from Crypto.Cipher import AES
  
  cipher = AES.new(aes_key, AES.MODE_OCB)
  ciphertext, tag = cipher.encrypt_and_digest(plaintext)

References

• PyCryptodome modern ciphers

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=python_lang_weak_encryption_rsa

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

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