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HistoryAug 28, 2018 - 10:34 p.m.

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

2018-08-2822:34:15
Google
osv.dev
7

0.002 Low

EPSS

Percentile

61.7%

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.

0.002 Low

EPSS

Percentile

61.7%