Description
Tinfoil Devise-two-factor before 2.0.0 does not strictly follow section 5.2 of RFC 6238 and does not "burn" a successfully validated one-time password (aka OTP), which allows remote or 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.
Metrics
CVSS 3.0 5.3/10
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://www.openwall.com/lists/oss-security/2015/06/20/4Mailing List, VDB Entry
- http://www.openwall.com/lists/oss-security/2015/09/17/2Mailing List, VDB Entry
- http://www.securityfocus.com/bid/76789Third Party Advisory, VDB Entry
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=798466Mailing List, Third Party Advisory
- https://github.com/tinfoil/devise-two-factor/blob/master/UPGRADING.mdThird Party Advisory
- https://github.com/tinfoil/devise-two-factor/issues/45#issuecomment-139335608Third Party Advisory
- http://www.openwall.com/lists/oss-security/2015/06/20/4Mailing List, VDB Entry
- http://www.openwall.com/lists/oss-security/2015/09/17/2Mailing List, VDB Entry
- http://www.securityfocus.com/bid/76789Third Party Advisory, VDB Entry
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=798466Mailing List, Third Party Advisory
- https://github.com/tinfoil/devise-two-factor/blob/master/UPGRADING.mdThird Party Advisory
- https://github.com/tinfoil/devise-two-factor/issues/45#issuecomment-139335608Third Party Advisory
Timeline
- Published
- Sep 6, 2017
- Last modified
- Jun 17, 2026
- NVD status
- Modified