Vulnerabilities > CVE-2015-7225 - 7PK - Security Features vulnerability in Tinfoilsecurity Devise-Two-Factor
Attack vector
NETWORK Attack complexity
MEDIUM Privileges required
SINGLE Confidentiality impact
PARTIAL Integrity impact
NONE Availability impact
NONE Summary
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.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 4 |
Common Weakness Enumeration (CWE)
References
- http://www.openwall.com/lists/oss-security/2015/06/20/4
- http://www.openwall.com/lists/oss-security/2015/09/17/2
- http://www.securityfocus.com/bid/76789
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=798466
- https://github.com/tinfoil/devise-two-factor/blob/master/UPGRADING.md
- https://github.com/tinfoil/devise-two-factor/issues/45#issuecomment-139335608