Usage of weak hashing library (Adler-32)

• Rule ID: php_lang_weak_hash_adler32
• Languages: php
• Source: weak_hash_adler32.yml

Description

Adler-32 is a weak hashing algorithm that offers minimal security. It is not suitable for protecting data against intentional modifications.

Remediations

• Do not use Adler-32 for hashing when security is a concern. Its simplicity and speed do not compensate for its lack of protection against data tampering.

  $myhash = hash('adler32', $input); // unsafe

• Do opt for stronger hashing algorithms like SHA-256 to ensure data integrity and security.

  $myhash = hash('sha256', $input);

Associated CWE

• CWE-328: Use of Weak Hash

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=php_lang_weak_hash_adler32

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

bearer scan /path/to/your-project/ --only-rule=php_lang_weak_hash_adler32