Sensitive data encrypted with a weak encryption library detected.
- Rule ID: ruby_lang_weak_encryption_with_data
- Languages: ruby
- Source: weak_encryption_with_data.yml
Description
A weak encryption or hashing library can lead to data breaches and greater security risk. This rule checks if weak encryption techniques are used on sensitive data.
Remediations
According to OWASP: MD5, RC4, DES, Blowfish, SHA1. 1024-bit RSA or DSA, 160-bit ECDSA (elliptic curves), 80/112-bit 2TDEA (two key triple DES) are considered as weak hash/encryption algorithms and therefor shouldn't be used.
❌ Avoid libraries and algorithms with known weaknesses:
Digest::SHA1.hexdigest 'weak password encryption'
Crypt::Blowfish.new("weak password encryption")
RC4.new("weak password encryption")
OpenSSL::PKey::RSA.new 1024
OpenSSL::PKey::DSA.new 1024
Digest::MD5.hexdigest 'unsecure string'✅ Instead, we recommend using bcrypt:
BCrypt::Password.create('iLOVEdogs123')