devise-two-factor 1.1.0 and earlier vulnerable to replay attacks
A OTP replay vulnerability in devise-two-factor 1.1.0 and earlier allows local
attackers to shoulder-surf a user's TOTP verification code and use it to
login after the user has authenticated.
By not "burning" a previously used TOTP, devise-two-factor allows a narrow
window of opportunity (aka the timestep period) where an attacker can re-use a
Should an attacker possess a given user's authentication
credentials, this flaw effectively defeats two-factor authentication for the
duration of the timestep.
Am I vulnerable?
The constraints below list the versions that this vulnerability is patched in, and versions that are unaffected. If a patch is ready but unrealeased, then it is pending.
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Affected package information
|Package||Patched in||Unaffected in|