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CVE-2024-8796

Good to know:

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Date: September 17, 2024

Under the default configuration, Devise-Two-Factor versions >= 2.2.0 & < 6.0.0 generate TOTP shared secrets that are 120 bits instead of the 128-bit minimum defined by RFC 4226. Using a shared secret shorter than the minimum to generate a multi-factor authentication code could make it easier for an attacker to guess the shared secret and generate valid TOTP codes.

Language: Ruby

Severity Score

Related Resources (5)

https://nvd.nist.gov/vuln/detail/CVE-2024-8796
https://github.com/devise-two-factor/devise-two-factor/security/advisories/GHSA-qjxf-mc72-wjr2
https://github.com/devise-two-factor/devise-two-factor
https://github.com/devise-two-factor/devise-two-factor/commit/cc6f34423d9c6af9f3e02be478c3c40dc7462e19
https://www.mend.io/vulnerability-database/CVE-2024-8796

Severity Score

Weakness Type (CWE)

Insufficient Entropy

CWE-331

Top Fix

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Upgrade Version

Upgrade to version devise-two-factor - 6.0.0

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

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