CWE
916
Advisory Published
Updated

CVE-2024-24553: Bludit uses SHA1 as Password Hashing Algorithm

First published: Mon Jun 24 2024(Updated: )

Bludit uses the SHA-1 hashing algorithm to compute password hashes. Thus, attackers could determine cleartext passwords with brute-force attacks due to the inherent speed of SHA-1. In addition, the salt that is computed by Bludit is generated with a non-cryptographically secure function.

Credit: vulnerability@ncsc.ch

Affected SoftwareAffected VersionHow to fix
Bludit

Remedy

To address this vulnerability, it is imperative that the Bludit development team transitions to a more secure and intentionally slow hashing algorithm, such as bcrypt or Argon2, for password storage. These algorithms introduce the necessary computational overhead to resist brute-force attacks effectively. In addition, it is advised that appropriate cost factors are used. Furthermore, the generation of password salts should be revamped to employ a cryptographically secure method. The current approach, utilizing the `Text::randomText function`, should be replaced with a robust random number generator provided by the operating system or a dedicated cryptographic library. This change ensures the creation of unpredictable and secure salts, enhancing the overall resilience of the password storage mechanism.

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Frequently Asked Questions

  • What is the severity of CVE-2024-24553?

    CVE-2024-24553 is considered a high-severity vulnerability due to the use of SHA-1 hashing for password protection.

  • How do I fix CVE-2024-24553?

    To fix CVE-2024-24553, update Bludit to a version that uses a more secure hashing algorithm, such as bcrypt.

  • What impact does CVE-2024-24553 have on users?

    CVE-2024-24553 allows attackers to potentially recover user passwords through brute-force attacks due to weaknesses in SHA-1 and the non-cryptographically secure salt.

  • Are older versions of Bludit affected by CVE-2024-24553?

    Yes, older versions of Bludit that use the SHA-1 hashing algorithm for passwords are affected by CVE-2024-24553.

  • Is there a workaround for CVE-2024-24553?

    A temporary workaround for CVE-2024-24553 is to implement additional rate limiting on login attempts while awaiting a patch.

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