CVE-2023-52323: Non Constant Time Crypto Padding Parse
Using non-constant time methods like `.find()` or `.index()` to locate a padding separator byte (e.g., `b'\x01'` or `b'\x00'`) during decryption introduces a timing side-channel. This leaks information about the plaintext structure and makes the application vulnerable to padding oracle attacks like Manger's attack. Use constant-time array parsing instead.
Pythongreprules fetch cve-2023-52323-non-constant-time-crypto-padding-parse --engine opengrepDescription
Using non-constant time methods like `.find()` or `.index()` to locate a padding separator byte (e.g., `b'\x01'` or `b'\x00'`) during decryption introduces a timing side-channel. This leaks information about the plaintext structure and makes the application vulnerable to padding oracle attacks like Manger's attack. Use constant-time array parsing instead.
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