Insufficient Entropy
CVE-2024-8796
Summary
Under the default configuration, Devise-Two-Factor versions 1.0.0 and 4.0.0 through 5.1.0 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.
- HIGH
- NETWORK
- NONE
- UNCHANGED
- NONE
- LOW
- HIGH
- NONE
CWE-331 - Insufficient Entropy
The software uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others.
References
Advisory Timeline
- Published