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Insecure-crypto-cbc-mode
Insecure crypto cbc mode
Symmetric cryptographic operations were identified that use Cipher Block Chaining (CBC) mode. AES in CBC mode provides unauthenticated cryptographic encryption. CBC is also malleable, meaning that an attacker can influence the decrypted plaintext by modifying bits of the ciphertext (bit flipping attacks). Consider using an authenticated encryption mechanism, such as AES-GCM or ChaChaPoly. If CBC mode is required, consider augmenting the encryption with authentication by signing the ciphertexts with a Message Authentication Code (e.g. HMAC).
Likelihood: LOW
Confidence: HIGH
CWE:
- CWE-327: Use of a Broken or Risky Cryptographic Algorithm
OWASP:
- A03:2017 - Sensitive Data Exposure
- A02:2021 - Cryptographic Failures