GHSA-x489-jjwm-52g7MediumCVSS 5.3

Tinfoil Devise-two-factor does not "burn" a successfully validated one-time password (OTP)

Published
August 28, 2018
Last Modified
July 5, 2023

🔗 CVE IDs covered (1)

📋 Description

Tinfoil Devise-two-factor before 2.0.0 does not strictly follow RFC 6238 § 5.2 and does not "burn" a successfully validated one-time password (aka OTP), which allows physically proximate attackers with a target user's login credentials to log in as said user by obtaining the OTP through performing a man-in-the-middle attack between the provider and verifier, or "shoulder surfing", and replaying the OTP in the current time-step.

🎯 Affected products1

  • rubygems/devise-two-factor:< 2.0.0

🔗 References (10)