# Usage of weak hashing library on a password (MD5)

## Overview

* **Rule ID**: `javascript_lang_weak_password_hash_md5`
* **Applicable Languages**: Javascript
* **Weakness ID**: CWE-326

## Description

Using a weak hashing library such as MD5 for password storage undermines security. MD5 is outdated and vulnerable, increasing the likelihood of attackers successfully cracking passwords and gaining unauthorized access.

## Remediation Guidelines

* **Avoid using MD5** for hashing passwords or sensitive data, as it is no longer deemed secure.
* **Use** a robust and recommended hashing library, such as Argon2id, for password hashing. This approach improves security by significantly increasing the difficulty for attackers to crack stored passwords.

  ```javascript
  const argon2 = require("argon2");
  const hash = await argon2.hash(req.params.password, { type: argon2.argon2id })
  ```

## References

* [**OWASP Password Storage Cheat Sheet**](https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html)
* [**CWE-326: Inadequate Encryption Strength**](https://cwe.mitre.org/data/definitions/326.html)
* [**OWASP Top 10: A02:2021 - Cryptographic Failures**](https://owasp.org/Top10/A02_2021-Cryptographic_Failures/)

## Configuration

To omit this rule during a scan, and to provide you with continuous 24/7 code-level scanning, you can employ our [**SAST TOOL**](https://scopy.sec1.io/login)


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