Encryption using ECB¶
ID: cs/ecb-encryption Kind: problem Security severity: 7.5 Severity: warning Precision: high Tags: - security - external/cwe/cwe-327 Query suites: - csharp-code-scanning.qls - csharp-security-extended.qls - csharp-security-and-quality.qls Click to see the query in the CodeQL repository
ECB should not be used as a mode for encryption. It has dangerous weaknesses. Data is encrypted the same way every time meaning the same plaintext input will always produce the same ciphertext. This makes encrypted messages vulnerable to replay attacks.
Recommendation¶
Use a different CypherMode.
References¶
Wikipedia, Block cypher modes of operation, Electronic codebook (ECB).
Common Weakness Enumeration: CWE-327.
